Intake heater light on freightliner

2) The intake air heater circuits will only activate when the intake manifold temperature is below 19°C [66°F] when the key switch is in the ON position. Ask Your Own Medium and Heavy Trucks Question. Voltmeter on dash Drops down every time the relay cycle When cold I turn the key on I hear the relays energize and the wait to start light ...

5546 posts · Joined 2010. #3 · May 15, 2010. i believe it uses the ambient air sensor not 100% on that though, it could be that the light bulb burned out. when cold and waiting to start do you hear the light clunk from the heater. mine is pretty noticable and would know exactly what it was. 2005 white auto, Stage 4 ATS Trans, 120HP DDP ...2 Vehicle Access. Assist Rails and Access Steps. Entering and Exiting the Bus. Front Door Opening and Closing. Battery Access. Hood Opening and Closing. Emergency Roof Escape Hatch. Emergency Door. Emergency Window Exits.Freightliner MBFME190887 Relay Intake Air Heater Co . Brand: Freightliner. Currently unavailable. We don't know when or if this item will be back in stock.check enginge light air intake heater code Jump to Latest Follow 12K views 9 replies 5 participants last post by Quickvic30 Dec 7, 2012Freightliner Custom Chassis ... 09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . ... 83 Heater and Air Conditioner . 83–00 Safety Precautions ; 83–01 Air Conditioner Inspection ; 83–02 HVAC Air Filter Replacement ; 88 Hood, Grille, and Cab Fenders ...StealthDiesel said: The WTS start light flashing is really a big flashing warning light. Chrysler programmed that flashing light to warn the driver to shut the engine down before a failing injector trashed the engine. There are fuel system DTC codes buried somewhere in your ECM (usually P122x).Thanks for the information.Since the yellow check engine light comes on, this indicates the engine ECM is receiving power and functioning. There are several things that can cause a crank no start on this engine.The first is a low or no fuel pressure condition. The engine needs at least 25 psi to start. If it is low, the injectors will not get ...3 posts · Joined 2023. #1 · Jan 18, 2023. I have a 2004 ram 2500 5.9 with 73k miles and a couple months ago the check engine light came on for the air intake heater. I replaced the air intake heater as well as the relays. Light stayed on and would not clear with the scanner. Took it to the dealer and they said the air intake heater and relays ...

Originally posted by dsalinas1939. i may have put this up before not sure but i have this 2014 c2 and its setting a 3494 code its intake heater mechanical fault i ran down the diagnostic tree and its tellin me it have to take to dealer for next procedure the heater eliment is working fine when i turn key on i hear it click on then off i see it ...Immerse the IAT sensor in a cup of ice water (below 66F ambient temp for 05 truck) should trigger the grid heater operation. If not then the relay doesn't get the 12V trigger signal from ECM for some reasons or the relay ground is missing. _________________. '05 2500 QC SLT SB 4X4 48RE Smarty Jr 205k miles.Jun 14, 2012 · I have 98.5 and my wait to start light will not come on when you turn the key to the on position right away. It takes about 8-10 seconds for the light to come on. Once the light comes on the truck will start. If i try to just turn the key and start it as soon as enter it into the ingnition the truck will just turn over and continue to turn over.... 2 Vehicle Access. Assist Rails and Access Steps. Entering and Exiting the Bus. Front Door Opening and Closing. Battery Access. Hood Opening and Closing. Emergency Roof Escape Hatch. Emergency Door. Emergency Window Exits. Freightliner Custom Chassis ... 09 Air Intake . 09–01 Air Cleaner Inspection ; 13 Air Compressor . 13–00 Safety Precautions ; ... 83 Heater and Air Conditioner . 83–00 Safety Precautions ; 83–01 Air Conditioner Inspection ; 83–02 Air Filter Replacement ; 88 Hood, Grille, and Cab Fenders ...Do you know how to make a solar water heater using a can? Find out how to make a solar water heater using a can in this article from HowStuffWorks. Advertisement You can harness th...Feb 27, 2022 · The “wait to start” light comes on ever time during pre-start, but grid heaters never engage. It’s never worked since I bought the MH in 2013. I’ve used block heater to preheat engine prior to starting. Van Willams had this problem in 2015 and he checked all connections in engine room area which ended up resolving the problem.

Oct 24, 2021 · This discussion is proudly sponsored by: Please support our sponsors and let them know you heard about their products on iRV2. Thread Tools. 10-24-2021, 04:48 PM. BobG88. Senior Member. Join Date: Jul 2016. Location: Murfreesboro, TN. Posts: 356. Find somewhere else to keep these household objects. In addition to using less energy, part of the appeal of tankless hot water heaters is that they take up less space than traditi...To contact Freightliner about a concern about a specific vehicle call the Customer Assistance Center at 1-800-385-4357 or complete a Product Concern Form. Vehicles domiciled in Canada thought to have a defect that could cause a crash, injury, or death, should immediately be reported to Transport Canada and Daimler Truck North America …To contact Freightliner about a concern about a specific vehicle call the Customer Assistance Cen-ter at 1-800-385-4357 or complete a Product Concern Form. Vehicles domiciled in Canada that are thought to have a defect that could cause a crash, injury, or death, should immediately be reported to Trans-port Canada and Daimler Truck North ...I have a 2004 FREIGHTLINER M2-16 with a DT 466 Diesel engine. While driving it it runs fine but at decceleration at almost full stop, it starts shaking and acting up and the intake heater light comes … read more

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Freightliner Custom Chassis ... 09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . ... 83 Heater and Air Conditioner . 83–00 Safety Precautions ; 83–01 Air Conditioner Inspecting ; 83–02 HVAC Air Filter Replacing ; 88 Hood, Grille, and Cab Fenders ...Logged. Re: 8.3 (mechanical) Intake Preheater Problem. Reply #1 – November 23, 2023, 05:39:15 pm. The fuel solenoid needs 2 wires to operate if it is internally grounded and could have three wires which. would be the ground, One wire is the pull in circuit and the other wire is the hold in circuit. The intake preheater only works when it is cold.2 Vehicle Access. Assist Rails and Access Steps. Entering and Exiting the Bus. Front Door Opening and Closing. Battery Access. Hood Opening and Closing. Emergency Roof Escape Hatch. Emergency Door. Emergency Window Exits.Intake heater light keeps coming o. And off and truck won’t maintain speed. Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix.Here I show how to diagnose a air intake heater circuit on a Cummins Isc EngineLogged. Re: 8.3 (mechanical) Intake Preheater Problem. Reply #1 – November 23, 2023, 05:39:15 pm. The fuel solenoid needs 2 wires to operate if it is internally grounded and could have three wires which. would be the ground, One wire is the pull in circuit and the other wire is the hold in circuit. The intake preheater only works when it is cold.

top trailer lights went out on 2014 M2-106 box truck . can't locate fuse for it and desperately trying to avoid a ticket while working at night. been at … read more. Associate of Applied Scienc... 2016 m2 106. Range inhibit light is on.banyon. If the grid heater was on you would see the draw on the amp meter. Keep a test light in the truck with you & when it comes on see if the grid solenoid is getting power. It should have power to one side but not to the grid itself. The intake air sensor is the one at the air cleaner.Walk away from the tea lights and the terracotta pot. You probably know space heaters can be dangerous and have to be used very carefully, so the appeal of a TikTok hack for making...163. Wait to start light is not coming on. But engine starts. The wait to start light is for the engine intake air heater. When key is first turned on, all the lights on the dash come on for a couple of seconds, including the wait to start light. But it used to stay on for a few seconds after that, then go off signaling it was time to turn the ... %PDF-1.4 %âãÏÓ 4520 0 obj > endobj xref 4520 25 0000000016 00000 n 0000003330 00000 n 0000003476 00000 n 0000003514 00000 n 0000003737 00000 n 0000003880 00000 n 0000004524 00000 n 0000005195 00000 n 0000005234 00000 n 0000005313 00000 n 0000005390 00000 n 0000005563 00000 n 0000006101 00000 n 0000006758 00000 n 0000007660 00000 n 0000008440 00000 n 0000009180 00000 n 0000009889 00000 n ... 1. Table 1 MBE 900 Grid Heater Relay Installation Kit (P/N: A9061590004) INSTALLATION PROCEDURE. 1. Make sure that the engine is off (key OFF, engine OFF). 2. Disconnect the batteries. 3. Disconnect the electrical harness connector and …Oct 31, 2011 · The grid heaters on our Vision's here will continue to cycle causing the volt gauge to drop, the STOP light and TOO LOW with pic of battery, until the engine oil temp and the engine water temp reach 120 degrees cumulatively. So basically 60 degrees of temp on each one is suppose to stop grid heater from coming on. 99ft3003 Gtx 800mhz Mobile Radio Schematics Exhibit 6 Motorola Solutions. U0327. All Wiring Diagrams For Mercedes Benz E500 4matic 2005 Cars. Freightliner Mins Pto Control. Freightliner M2 100 106 112 Truck Work Manual Mypowermanual. 2010 Freightliner Business Class M2 100 Trucks Electrical Wiring Diagram Manual. M2 …Leading Solutions for Cold Starts & Emissions Reduction. Air Intake Heaters, also known as grid and manifold heaters, provide solutions for diesel applications such as On-Highway, Off-Road and Power Generation. Powered by the vehicle battery, air intake heaters provide an on-board, stand-alone cold weather starting aid without driver intervention.Have a cat 3126, I suspect air inlet heater is not working. Lots of smoke at startup, light comes on but not for long. How can I test it or the relay. 02 kw t300 cat 3126 engine. Hello and thank you for using just answer my name is ***** ***** I will be assisting you with your question today on your intake heater on your caterpillar engine ...

Oct 31, 2011 · The grid heaters on our Vision's here will continue to cycle causing the volt gauge to drop, the STOP light and TOO LOW with pic of battery, until the engine oil temp and the engine water temp reach 120 degrees cumulatively. So basically 60 degrees of temp on each one is suppose to stop grid heater from coming on.

Aug 6, 2015 · My question is about the air intake heater system on my 2000 Freightliner FL70 that has a Cat 3126 engine. I have had the truck since March of this year. Initially the indicator light for warming the engine when cold stayed on for about 30 seconds as it. was supposed to and the engine started fine. I have a lengthy bit of info I want to include ... Thanks for the information.Since the yellow check engine light comes on, this indicates the engine ECM is receiving power and functioning. There are several things that can cause a crank no start on this engine.The first is a low or no fuel pressure condition. The engine needs at least 25 psi to start. If it is low, the injectors will not get ...CASCADIA MAINTENANCE MANUAL Models: CA113DC CA113SLP CA125DC CA125SLP STI-478-6 (02/03/2022) Published by Daimler Truck North America LLC 4747 N. Channel Ave. Portland, OR 97217Thread Tools. 2001 Cummins 5.9 ISB 300HP What's the purpose of the inlet or intake heater? Is it used instead of glow plugs? When does it operate? If it goes inop …18 Manual Transmissions and Clutch. 19 Drive Axles. 20 Fifth Wheels. 21 Trailer Couplings. 22 Headlights. 23 Vehicle Appearance and Care. 24 Pre- and Post-Trip Checklists. 25 Pre- and Post-Trip Inspections and Maintenance. 26 In An Emergency.do if they should light up. If the lamps remain on after the recommended actions, contact your Caterpillar authorized dealer. (If Equipped) The dash switch allows the driver to control the 1. Automatic (Preferred Position): A regeneration cycle starts automatically when engine conditions warrant. The driver does not need to take any action. 2.Freightliner Trucks reserves the right to discontinue models and to change specifications or design at any time without notice and without incurring obligation. Descriptions and …Freightliner MBFME190887 Relay Intake Air Heater Co . Brand: Freightliner. Currently unavailable. We don't know when or if this item will be back in stock.NOTE: If the check engine light illuminates dur- sition is left blank. ing vehicle operation, take the vehicle directly to The instrument cluster has an emergency buzzer that an …

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The ABS light is a steady burn while cranking but once it fires it flashes for about 30 sec before going off. ... It **might** have an intake heater. It would be on the air intake pipe going in to the engine and have a couple of 2 gauge or so cables gojng to it. ... Freightliner used to bury them under there on the business class trucks. I ...No glow plugs, Cummins uses a grid heater. 07 5.9L 2500 QC/LB 4x4. Edge J/A, Smarty TNT, AFE stage 2/ progaurd 7 filter Arson III 2G intake horn 6" lift 37 13.5 17 SS M-16 5"TBE Full Billet trans.Propane heaters can make cold winter nights a lot more bearable. Here's a list of some of the best indoor and outdoor propane heaters to keep you warm this winter season. If you bu...I have a 2006 Bluebird Vision with a C7 Cat giving me fits. The "wait to start" light is on constantly KOEO or engine running and the grid heater is never activated at cold start up. If I supply power and ground to the solenoid it activates and the heater works as it should, with the signal wires disconnected I have ground on one and 7.2 Volts ...The CAT C7 '07 engine coolant heater is an option listed for the Blue Bird school bus products; BBCV, A3FE, and A3RE. OPTION #40168 BLOCK HEATER, INTERNAL. Internal engine block heater (coolant immersion type). Considered a coolant heater starting aid. 120V AC and 1500 watts; includes a standard lead power cord. BB Quality Educator. Thomasbus24.summary: freightliner service campaign: see document search button for owner letter. freightliner columbia front air brake hoses-air products inc. only. on certain trucks, an elbow fitting connecting the brake air line hose to the front brake cha . communication number: sb-54-240, date: 2009-06-01 category: 111000 electrical system:battery2014 Freightliner Business Class M2 Electrical Wiring Technical Service Bulletins TSB Number: 503-14 NHTSA Number: 10141904 TSB Date: May 3, 2014 Date Added to File: June 18, 2018 Failing Component: Electrical System:Wiring Summary: 503-14 fmi 3, 4: high side digital output 3 circuit failed high. View This TSB. TSB Number: …Even I know not to do this...water from washing and rain was entering the air box from the head light and saturated the filter, which in turn contaminated the air intake heater. The filter was also saturated with water and the filter oil they used. Cost Break Down: OEM Air Box =$271.48 Mass Air FNC with Sensor=$344.25.I run four sets of them 2 in the head light and 2 in the fog and the never go out not when starting or grid heater 2001 Dodge 2500 quad cab , Auto, 306,xxx miles, S&B Cold Air Intake, Expandit 5 inch straight piped system, Smarty, Edge Insight CS for gauges , HID Fog Lights 8000k, HID Head Lights 4300k, Electric/Heated tow mirrors, Painted ...Freightliner Custom Chassis ... 09 Air Intake . 09–01 Air Cleaner Element Inspecting and Replacing ; 13 Air Compressor . 13–00 Safety Precautions ; ... 20–04 Coolant Heater Check, Webasto ; 20–05 Coolant System Maintenance, Electric Vehicle ; 20–06 Coolant Change, Electric Vehicle ... ….

ok, attached is a pin diagram for the air heater. check all fuses with a test light for power on both sides key on. Roy. As I said, I'm not near the vehicle, so will have to try this out later. Thanks. Ask Your Own Medium and Heavy Trucks Question. Hello, the engine number is ***** Ref No is C01-00003-394.EZWiring EZWiring™ makes Freightliner, Sterling, Western Star, Thomas Built Buses, and Freightliner Custom Chassis Corporation products’ wiring drawings and floating pin lists available online for viewing and printing. EZWiring can also be ac-cessed from within PartsPro. Introduction Descriptions of Service Publications18 Manual Transmissions and Clutch. 19 Drive Axles. 20 Fifth Wheels. 21 Trailer Couplings. 22 Headlights. 23 Vehicle Appearance and Care. 24 Pre- and Post-Trip Checklists. 25 Pre- and Post-Trip Inspections and Maintenance. 26 In An Emergency.The grid heater will take your voltage down quite a bit that's why it's a good idea to let the light go off before you try and start it, crank for 10 sec wait for 30 sec it should fire-up then. ... If my memory serves me correctly the intake heater relay is a Freightliner part and they are cheap follow the #4 cable back from the grid heater ...BUSINESS CLASS M2 MAINTENANCE MANUAL Models: M2 100 M2 106 M2 106V M2 112 M2 112V STI-455-7 (02/03/2022) Published by Daimler Truck North America LLC 4747 N. Channel Ave.Propane heaters can make cold winter nights a lot more bearable. Here's a list of some of the best indoor and outdoor propane heaters to keep you warm this winter season. If you bu...2006 c7 cat intake manifold heater not working. Hi. Thanks for asking your question! I will try and help you out. Most often the problem is no power to the heater relay. This is often caused by a blown fuse. If there is power to the relay. I would suspect a lack of ground from the ECM. Possible broken wire from ECM, of a failed relay.Posts: 944. Check Engine Light - Grid Heater. I have a CAT C-7 (350 HP) in a Travel Supreme motorhome with a check engine light illuminated due to the following codes: 70-5: Inlet Air Heater Driver #1. 729-5: Air Intake Heater Open Circuit. I checked the grid heater solenoid and it is good, but it appears I am not getting control power to the ... Intake heater light on freightliner, Web my 2019 freightliner has a intake heater light that keeps flashing when i hit a bump going down the road or when i accelerate. An intake heater was ordered for this unit wich is a 6hr job all the fuel line need to be removed. Web finally got around to fixing this air heater code engine light turns out it was the spartan mega 250a fuse., Propane heaters can make cold winter nights a lot more bearable. Here's a list of some of the best indoor and outdoor propane heaters to keep you warm this winter season. If you bu..., Intake Grid Heater light. Have a 2002 7.3 F-350. Just started having the intake heater light stay on while driving it all the time also noticed a small amount of white smoke on start up. I've read that it shouldnt be on because I'm driving, above 32* F, BLAH BLAH. Wondered if I deleted it would that fix the light or is it a relay problem., %PDF-1.4 %âãÏÓ 4520 0 obj > endobj xref 4520 25 0000000016 00000 n 0000003330 00000 n 0000003476 00000 n 0000003514 00000 n 0000003737 00000 n 0000003880 00000 n 0000004524 00000 n 0000005195 00000 n 0000005234 00000 n 0000005313 00000 n 0000005390 00000 n 0000005563 00000 n 0000006101 00000 n 0000006758 00000 n 0000007660 00000 n 0000008440 00000 n 0000009180 00000 n 0000009889 00000 n ..., 77 posts · Joined 2013. #1 · Sep 19, 2014. Deleted my grid heater a couple months ago with a GDP delete plate, now that it is a little colder in the mornings I am getting a check engine light due to it. I searched and couldn't find a thread that solves this without putting a throttle valve grid heater in. Does anyone know how to solve this ..., Logged. Re: 8.3 (mechanical) Intake Preheater Problem. Reply #1 – November 23, 2023, 05:39:15 pm. The fuel solenoid needs 2 wires to operate if it is internally grounded and could have three wires which. would be the ground, One wire is the pull in circuit and the other wire is the hold in circuit. The intake preheater only works when it is cold., Mar 21, 2010. #1. Recently I disconnected my battery cables, pulled the speedometer out to look for something else and now my check engine light and engine heater light won't go out and the code it flashes is 49 which is "Inlet Air Heater Driver Fault" (open/closed circuit) or something like that. I called CAT and he said it could be anything ..., 09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . 13–00 Safety Precautions ; 13–01 Air Compressor Inspection ; 15 Alternators and Starters . 15–00 Safety Precautions ; 15–01 Alternator, Battery, and Starter Connections Check ; 20 Engine Cooling/Radiator . 20–00 Safety Precautions ; 20–01 ..., top trailer lights went out on 2014 M2-106 box truck . can't locate fuse for it and desperately trying to avoid a ticket while working at night. been at … read more. Associate of Applied Scienc... 2016 m2 106. Range inhibit light is on., Posts: 944. Check Engine Light - Grid Heater. I have a CAT C-7 (350 HP) in a Travel Supreme motorhome with a check engine light illuminated due to the following codes: 70-5: Inlet Air Heater Driver #1. 729-5: Air Intake Heater Open Circuit. I checked the grid heater solenoid and it is good, but it appears I am not getting control power to the ..., Nov 3, 2019 · Intake heater light keeps coming o. And off and truck won’t maintain speed. Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. , If you have power at the output, check the connections to the intake heater. I like to put an inductive ammeter onto the wire from the relay to the intake heater to confirm low power draw before removing the heater grid. In the 17 yaers of working with the Cat engines,we have only had to change 2 of the heater grids., 09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . 13–00 Safety Precautions ; 13–01 Air Compressor Inspection ; 15 Alternators and Starters . 15–00 Safety Precautions ; 15–01 Alternator, Battery, and Starter Checking ; 20 Engine Cooling/Radiator . 20–00 Safety Precautions ; 20–01 Radiator ..., Apr 5, 2024 · Click the link above for the information. Ask Your Own Medium and Heavy Trucks Question. There’s a relay on top of the intake heater where power comes to but it isn’t sending power out the other side. Technician: Nich M. The relay should be activates by the ECM. Ask Your Own Medium and Heavy Trucks Question. , 2 Vehicle Access. Assist Rails and Access Steps. Entering and Exiting the Bus. Front Door Opening and Closing. Battery Access. Hood Opening and Closing. Emergency Roof Escape Hatch. Emergency Door. Emergency Window Exits., Aug 6, 2015 · My question is about the air intake heater system on my 2000 Freightliner FL70 that has a Cat 3126 engine. I have had the truck since March of this year. Initially the indicator light for warming the engine when cold stayed on for about 30 seconds as it. was supposed to and the engine started fine. I have a lengthy bit of info I want to include ... , There can be numerous reasons/causes for this code failure. 1. Test the individual and total injector return rates now. May be damaged injector nut, tube hole, rust in threads. 2. Test the output i.e. measure the output of the lift pump and the CP3, if either are low in volume or pressure, will cause the code. 3., Originally posted by dsalinas1939. i may have put this up before not sure but i have this 2014 c2 and its setting a 3494 code its intake heater mechanical fault i ran down the diagnostic tree and its tellin me it have to take to dealer for next procedure the heater eliment is working fine when i turn key on i hear it click on then off i see it ..., Sounds like your heater relay is stuck closed or open. The heater relay is located on the driver side of the engine on top of the intake manifold. It has a black rubber boot covering it for electrical ground protection. when removing relay, disconnect battery ground to prevent electrical shock.Reason being, the relay has power at all times, the ..., Light Mode; menu Log in ... "Air intake heaters, also known as grid heaters and manifold heaters, are used in diesel applications needing quick, smooth and reliable starts in cold weather. ... '97 Freightliner MT-35 Step Van 15' long cargo area custom RV project 4BTA, ZF5 trans swapped, 4K GSK, HD Valve Springs, P-pump, ..., New Design Old Design , summary: freightliner service campaign: see document search button for owner letter. freightliner columbia front air brake hoses-air products inc. only. on certain trucks, an elbow fitting connecting the brake air line hose to the front brake cha . communication number: sb-54-240, date: 2009-06-01 category: 111000 electrical system:battery, Intake heater light keeps coming o. And off and truck won’t maintain speed. Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix., I run four sets of them 2 in the head light and 2 in the fog and the never go out not when starting or grid heater 2001 Dodge 2500 quad cab , Auto, 306,xxx miles, S&B Cold Air Intake, Expandit 5 inch straight piped system, Smarty, Edge Insight CS for gauges , HID Fog Lights 8000k, HID Head Lights 4300k, Electric/Heated tow mirrors, Painted ..., Freightliner Custom Chassis ... 09 Air Intake . 09–01 Air Cleaner Element Inspecting and Replacing ; 13 Air Compressor . 13–00 Safety Precautions ; ... 20–04 Coolant Heater Check, Webasto ; 20–05 Coolant System Maintenance, Electric Vehicle ; 20–06 Coolant Change, Electric Vehicle ..., BUSINESS CLASS M2 MAINTENANCE MANUAL Models: M2 100 M2 106 M2 106V M2 112 M2 112V STI-455-7 (02/03/2022) Published by Daimler Truck North America LLC 4747 N. Channel Ave., New Design Old Design, Freightliner Truck reserves the right to discontinue models and to change specifications or design at any time without notice and without incurring obligation. Descriptions and …, EZWiring EZWiring™ makes Freightliner, Sterling, Western Star, Thomas Built Buses, and Freightliner Custom Chassis Corporation products’ wiring drawings and floating pin lists available online for viewing and printing. EZWiring can also be ac-cessed from within PartsPro. Introduction Descriptions of Service Publications, Thanks for the information. The 2 wire sensor is the intake air temp sensor. The 3 wire sensor is the Boost pressure sensor. Thr boost has nothing to do with the intake heater. The other sensor is the coolant temp sensor. It is located in the top of the block on the drivers side. It ia a 2 wire sensor as well., Nov 6, 2011. #4. Yes, when you turn the key to the run position the gauges will sweep from the lowest values to the highest and the solenoids in the air valves will do a "chuff" test. Then the gauges will go to the positons for the conditions present when the engine is off. I'm not sure of the 5.9 Cummins engine has an intake manifold grid ..., Benefits of Solar Water Heaters - The benefits of solar water heaters are numerous. Visit HowStuffWorks to learn all the benefits of solar water heaters. Advertisement The benefits..., Senior Member. Join Date: Jul 2016. Posts: 189. ISC 8.3 Heater Grid. My 2004 Revolution has a Cummins ISC 8.3 that will not start in colder weather. If I activate the block/coolant heater for an hour or so it starts fine. This leads me to suspect the grid heater is either not working or not getting power. I removed the bedroom engine access door.