Automotive Technicians Technical Discussion and Fixes for Feb 25, 2014

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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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	Help Request	Answers
	2000 Acura Integra GS-R 1.8L MIL Lamp on VIN: JH4DC2393Y Customer car came in three weeks ago with mil on code p1457. I smoke checked the system to find no leaks or issues so sent the customer on their way after checking and re tightening the gas cap. Vehicle came back a week later with mil on and same code in the s... Trouble codes: P1457	View
	2004 Audi S4 Avant 4.2L starter VIN: WAUPL68E44 I have gone to the customers house when this problem happens but it is impossible to get to anything on this car with out taking a lot of stuff apart. I was able to check for power out of ignion switch and it is ok. Audi istalled a new neutral safty but proble...	View
	2005 Audi S4 4.2L Alarm VIN: WAUPL68E85 This is a first time customer. Concern is that the alarm (factory) goes off while driving and will not stop for "a long time". I never experienced this, it is very intermittent. She states that the hazards flash and the horn beeps, but stops when a turn signal...	View
	2006 Audi A4 2.0L Engine VIN: WAUKF78E96 Have a 06 Audi A4 2.0 gas. Auto. shows 101K Car has a idle vibration. Changed trans and both motor mounts still present. No codes store, no misfire codes. Engine plenty of power, runs great but vibrates at idle, and can be felt at cruising speed. Took to d...	View
	1994 BMW 318i 1.8L No Start VIN: WBABK5323R We had this car towed in, customer stated it lost powered then died and wouldn't restart. After doing some checking noticed the car was flooding itself out. Knowing DME is a problem we sent it off to have it checked, came back fine. Injector pulse 10-11.5 ms w...	View
	2002 BMW 525i 2.5L Cel VIN: WBADT43412 Hi Fellows and BMW Gurus, We've this car from another shop with lean codes P0171 & P0173. To us what could me the car run lean are: 1.Bad MAF or air leak. 2.Front or rear O2 sensors stuck on rich 3.Too high fuel pressure or leaking fuel injectors After runnin...	View
	2006 BMW 330i 3.0L Timing VIN: WBAVB33536 Hello iATN, hope you guys can help. This vehicle came in intially for an overheating issue and no heat. During inspection we found coolant mixed with oil and a bad leak at the oil filter housing. we performed a block tested and found combustion gasses present ...	View
	1998 Buick Skylark Custom 3.1L turn signals/ hazards VIN: 1G4NJ52M6W Hey guys and gals got a good one here. Came in no turn/hazard lights. Okay no problem remove the relay and it rattles. great easy right. Installed new relay and as soon as I turn in the key it starts clicking on and off (no lights flashing). Found a post the w...	View
	2002 Buick Rendezvous CX 3.4L No Start VIN: 3G5DA03E92 Got this vehicle in with blown head gaskets. Repaired as usual. Then murphy's law. No start. We have spark. We have fuel at the regulator. The only code was for an oil sender. Replaced because it was leaking as we don't believe it was the culprit. We are readi... Trouble codes: P1189 (Oil sender circuit)	View
	2005 Cadillac STS 3.6L No Start, Stall VIN: 1G6DW67735 This car has an interesting problem, intermittently while driving will lose ipc, radio, ip/acc lighting, exterior lights then ultimately engine shuts off. usually will turn on abs, stability, air bag, tpms and/or antitheft lights immediately before hand. it oc...	View
	1999 Chevrolet Silverado 1500 5.3L Mechanical VIN: 1GCEK19T8X the truck is getting right at 60 lbs of fuel pressure and is also getin fire ...I changed out the fuel pump but that didn't fix the problem ... I know it is getting good fire because I started it up and drove it into the shop by spaying parts cleaner into the ...	View
	2004 Chevrolet Malibu Maxx LS 3.5L battery VIN: 1G1ZT64804 Battery goes dead INTERMITTENTLY. Was left for 4 days with no problem. Cust called after a week saying dead AGAIN.. The batt is new- test OK at this time.. no codes in BCM, but batt was dead, so none will be available anyway.. Draw test is .02 amp, and never a...	View
	2008 Chevrolet Silverado 1500 LT 5.3L Block Heater VIN: 2GCEK19008 Hi All - Thanks for the info on this one. We installed an aftermarket block heater that has a thermostatically controlled cord - customer didn't like the thermostat feature (only comes on below 0'F so we bypassed it). Now it will set a code for coolant temp pe...	View
	2004 Dodge Durango ST 4.7L Stall VIN: 1D4HD38N54 During cold start vehicle will not idle. TPS is at .5 volts and sweep test fine. Replaced battery, IAC and performed idle relearn. If you press lightly on accelerator, holding throttle plate slightly open engine will idle. No codes arte present. Smoke test sho...	View
	2007 Dodge Nitro R/T 4.0L blower motor and dash lights VIN: 1D8GU58677 Customer states that vehicle was found to b locked and key out of ign. Doors will not unlock with remote. blower motor running and all dash lights on. codes found in system were...U110c---U0141---U1403---U110E. We have been unable to reproduce the problem in ...	View
	2008 Dodge Caliber SXT 2.0L Starter VIN: 1B3HB48B58 Good afternoon Dodge techs everywhere.I am asking for help on this little car because it is DEFINITELY NOT our specialty.It was brought here by a good customers son with a complaint of wont start with key.Somebody rigged up a starter wire from under the TIPM y...	View
	2009 Dodge Ram 5500 Laramie 6.7L Cooling Systems VIN: 3D6WC76LX9 This truck blows white smoke on takeoff then clears up and runs clean until it sits and cools off then it smokes white smoke again. We tested it when it first came to shop for loss of coolant and found EGR cooler seaping into exhaust also found #6 exh.port wet...	View
	1997 Ford Ranger XLT 4.0L Cooling Systems VIN: 1FTDR15X3V This customer brought in his Ranger. It has a thumping noise in the cooling system. We replaced with a Ford pump as suggested in the TSB. It still has the noise. The service bulletin states it is caused by steam in the cooling system and there is a by pass kit...	View
	2005 Ford Explorer XLT 4.0L No Start, Hesitation, No Power VIN: 1FMZU73K65 This truck is very inconsistent. The customer called at 7:30am and said he was coming into town the night before and the truck lost power and he had to limp it into his hotel. The next day when he brought it to me about 4:00pm he said it started and ran fine w... Trouble codes: P0121 (Throttle Position Sensor TP1 Circuit Rnage Performance), P0193 (Fuel Rail Pressure Sensor Circuit High Input), P2104 (Throttle Actuator Control System Forced Idle), P2106 (Throttle Actuator Control System Forced Limited Power), P2111 (Throttle Actuator Control System Stuck Open), P2135 (ETC Throttle Position Sensor A/B Voltage Correlation)	View
	2008 Ford Escape XLS 2.3L Coolant Temp. VIN: 1FMCU02Z08 Engine replaced with used engine. Motorcraft thermostat installed out of routine. Never driven before work was done, can't say whether this issue existed before or not. According to my Solus, the ONLY data PID for coolant temperature available is CHT or Cylind...	View
	1993 GMC K2500 Suburban SLE 7.4L transmission VIN: 1GKGK26N4P Quirky one here. (students problem) Truck will not communicate with scanner KOEO. Will scan fine KOER. Will start out driving fine, watch all pids on scanner and roughly 15 minutes into drive, scanner loses communication (engine or trans access) and tranny goe...	View
	2005 Jaguar S-Type 3.0L Alarm and Switched Relays VIN: SAJWA01TX5 So this car has me stumped I usually can figure everything out but not so much on this Jag. As stated the alarm will arm after 35-40 minutes and will go off when the door is opened unless you use the fob to disarm it or the key is inserted in ignition. Reocc...	View
	2000 Jeep Grand Cherokee Limited 4.7L No Start VIN: 1J4GW58N5Y This Jeep came in with a complaint of randomly shutting down. On a test drive or sitting in the bay it will shut down and some times immediately restart and may have to sit for 20 minutes others. When the vehicle will not start the anti-theft light illuminates...	View
	2000 Jeep Cherokee Classic 4.0L No Start Jeep tow in for no start condition. When plug in the scan tool, it said NO BUS on the dash. I was able to communication with other module that connect to the BUS data line. Disconnect the Crank sensor, Cam sensor, and TP sensor and still NO communication. Have...	View
	2004 Jeep Grand Cherokee Limited 4.7L drivers door mirror VIN: 1J4GW58N64 Vehicle came in for no drivers side rear pwr wdo, wdo was down 1/2 way. While vehicle was here all other wdo's went inop. Found DDM had power and ground and none out. Replaced DDM with used one and had found broken wires in door jamb. Wires had been repaired b...	View
	2002 Lexus IS300 3.0L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: JTHBD19222 Hi please tell me if I am missing something. The lexus I am working on came in for a new timing belt water pump job in which you have to remove the cam gears to remove cover to remove water pump everything went fine or atleast I thought. was running rough so c...	View
	1998 Mercedes-Benz S320 LWB 3.2L shift lever VIN: WDBGA33G9W I Hope someone else has seen this: The gear shift lever will not physically move past 'D' into the lower gears. It won't even move over to slide past the gates. Are there solenoids in the housing that could cause this, or possibly something fell in the mechani...	View
	1999 Pontiac Sunfire GT 2.4L No Start, Stall, Misfire VIN: 4G2JB32T9X Car was brought to me not running, customer says they shut it off at the gas station and it wouldnt restart so they had a friend attempt to work on it, who installed a starter, 2 coils and a crank shaft sensor. Car attempts to start but sounds like timing is o... Trouble codes: P0335	View
	2000 Pontiac Firebird 3.8L Engine Locked Up VIN: 2G2FS22K8Y The customer had come in for a misfiring issue. He had previously had a tune up done, replaced an ignition coil, and we were to solve this misfiring issue. Everything else seemed ok, so we had recommended that the customer have his timing chain replaced due to...	View
	2009 Pontiac G3 Wave 1.6L Fuel System Lean VIN: KL2TX65E39 Hi guys i have a 2009 pontiac wave g3. Driver was complaining of increased fuel consumption, smell from exhaust and engine mil was on, we scanned the vehicle got a code p0171 fuel system too lean bank one. Checked online trouble shooter suggest possible fuel l...	View
	1999 Porsche 911 Carrera 3.4L interior lighting VIN: WP0AA2999X vehicle drains battery after checking several things and not finding anything car finally left interior light on after key is removed visor and door interior lights stay lite no codes and no known issues , all the door switches work and the interior door ...	View
	2003 Saturn Vue 3.0L TCC lockup VIN: 5GZCZ63B13 This problem child came in with a bad trans.Every thing was done in a trans shop,but it didn't work right.They decided on the TCM being the problem,and customer got a used one.This Vue has been to two GM dealers to be flashed.It is AWD and the used TCM came ou...	View
	1999 Toyota Camry CE 2.2L Poor Idle Quality VIN: 4T1BG22K7X Thanks ahead of time for any help you can give me. Worked half the day on this high idle when warm. First start idles fine 1000--1100 rpm , as engine warms idle goes up tops out [...] when coolant temp reaches 198. TPS at 10% no codes scan data all seems n...	View
	2003 Toyota Highlander 3.0L No Start, Poor Idle Quality, Misfire VIN: JTEGF21A13 Im pulling what little hair i have left out. This Highlander came in on a hook with a no start. It had no injector pulse and no fuel pressure but it had spark. I noticed that the key was a aftermarket key. I told the customer to bring me all the keys to the ve... Trouble codes: P0351 (Ign primary 1), P0352 (Ign primary 2), P0353 (Ign primary 3), P0354 (Ign primary 4), P0355 (Ignprimary 5), P0356 (Ign primary 6)	View
	2007 Toyota RAV4 2.4L Cuts out, Stall, Misfire, hard start VIN: JTMZD33V77 So far, I have run into a wall on this vehicle. Car has a po171, and cold it is a very extended crank, upwards of 30-45 seconds. Did notice a stumble/misfire when first started cold but that cleared up within 10 seconds and could not duplicate it. Fuel trims ... Trouble codes: P0171	View
	2008 Toyota Avalon XLS 3.5L MIL Lamp on VIN: 4T1BK36B88 Kind of a strange problem with this car as codes will set but freeze frame always shows fuel trims are within zero to three of perfect at time of failure, car runs very good and is smooth. Find no vacume leaks and only shows bank 1 as a problem but fuel trims ... Trouble codes: P2237 (a/f pumping circuit open), P2238 (a/f pumping circuit low)	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2005 BMW X5 4.8is 4.8L ride control VIN: 5UXFA93535 Thank you to the 4 that replied. We sent the car to the dealer to replace the defective module but instead were told that the module was ok. They claimed that the module was still in transport mode and just needed to be properly programmed which they charged u...	5
	1990 Cadillac Allante 4.5L Cuts out VIN: 1G6VS3387L Thank you everybody for helps. I got aftermarket rebuilt distributer assembly which includes hall effect cam switch and ignition module. Furthermore replaced distributor cap and rotor. Engine run 20 min in the shop without trouble. Test drived smoothly. Checke... Trouble codes: E041 (Cam sensor circuit).	8
	1994 Dodge Ram 3500 8.0L 1-2 shift VIN: 1B6MF36W7R THANKS FOR ALL THE HELP GUYS! This site is awesome. The culprit turned out to be the throttle valve cable. The cable for a diesel is a hair longer than for the V10. Thanks to everyone who replied with GREAT info. I drove it with the TV cable unhooked from...	10
	2008 Dodge Ram 1500 SXT 5.7L engine VIN: 1D7HU18258 thanks for all the help. I checked the exhaust thoroughly and that was not the issue. What I determined it to be was a valve train noise. once the vehicle was warmed up the valve spring would come in contact with a sleeve placed around the spring. customer did...	7
	2004 Ford F-150 XL 5.4L 3rd, O/D VIN: 1FTVX14514 Well, we're not sure what the fix was. Removed the trans and tore it back down. Clutches and bands were all pristine. Checked carefully for hairline crack in the drum and nothing found. Everything air checked fine before teardown, and after re-assembly. Put tr...	6
	2004 Ford Freestar Limited 4.2L Misfire, MIL Lamp on VIN: 2FMZA58264 Calling this one fixed gang. This one had multiple issues, & after prying it out of the owner, hasn't been running right without a check engine, for a LONG time. Many said check the egr ports but it's the newer style manifold, doesn't have the ports, I smoked... Trouble codes: P0106 (Map), P2197 (Lean), P0401 (Egr flow), P0171 (Lean bank 1), P0174 (Lean bank 2).	21
	2002 Honda Accord SE 2.3L MIL Lamp on Thanks to all who replied. The PCM is fine (not fried). I never had the tool to actuate the solenoids. But I did read another Tech's posts and he used a scope to see them come-on during operation. I have to admit, one dedicated tech. But my diagnosis was simpl... Trouble codes: P1457.	6
	2008 Honda Civic EX 1.8L Accessories VIN: 1HGFA16878 Thanks for the help, put a motor on & problem is fixed! I love iatn & really appreciate everyones response.	6
	2010 Hyundai Sonata GLS 2.4L MIL Lamp on VIN: 5NPET4AC1A Well the customer dropped the car off for further diagnosis.Ran all test again,rechecked resistance. All was good.I kept the car over night,so I could check it while cold.ran test system opened fine,but when I turned off the solenoid sure enough the system sta... Trouble codes: P2004 (Intake manifold runner stuck open), P0661 (Intake manifold tuning valve control circuit low).	8
	2006 Jeep Grand Cherokee Laredo 3.7L Mechanical VIN: 1J4GR48K06 I removed the valve covers and checked the cam journals and everything looked good. Cleaned out the oil pan and pickup tube. Reassembled everything and now I have good oil pressure hot. Customer has been driving it for a while with no issues. Apparently there ...	12
	2004 Mazda B2300 2.3L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 4F4YR12D04 Good evening all, First let me thank all of you for the great help, as it enabled me to finally get this rig running properly. I bought a back pressure test gauge and that showed there was only 1.5 PSI of BP at 3000 rpm, but it would still misfire at idle... Trouble codes: P0351 (Ignition coil), P0301 (Cyl 1 misfire), P0304 (cyl 2 misfire).	8
	2003 Mercedes-Benz C230 Kompressor 1.8L fuse 54 hi guys thanks for your imput checked all replies pretty sure it may have been the loom under washer bottle removed cover repositioned wiring all seems good been gone for 2 weeks thanks guys marc	8
	2005 Mercedes-Benz S500 5.0L Battery VIN: WDBNG75J15 First I would like to thank everyone for responding with some awesome information ! Once I understood that 80 to 110 milliamps (thanks Mar) could be considered normal for this vehicle I had to change thinking . Returning to take a deeper look at the new batter...	24
	2009 Mini Cooper S Clubman 1.6L Piston VIN: WMWMM33549 Thanks again IATN and the techs who replied. We ended up over doing this one and forgot its going to be for sale the head was just supposed to be checked and cleaned ended up being ported because of small gashes in the intake. The pistons were so expensive fr...	8
	2006 Peugeot 307cc 2.0L Front windows Thanks for the replys, turned out to be the drivers door switch	5
	1996 Subaru Legacy Outback 2.5L overheats VIN: 4S3BG6853T Thanks for the help, we are in the process of removing the heads. I also appreciate the tips about doing the heads, makes our job sooooo much easier!	24
	1999 Volkswagen Cabrio GLS 2.0L windows VIN: 3VWDB61E7X spoke to vw and it is normal thanks guys!vw says this car does not have that option	6
	2005 Volkswagen Jetta GL 2.0L Mechanical VIN: 3VWRA69M05 Once I checked the fuel pressure it was clear that the problem was the fuel pressure, specs say 3-5 bar at idle this car had 2.5 and on acceleration it went down to 2 bar replaced both filter and pump and all is good Thanks for all the replies	10

(Also Available: All, Asian, Chrysler, European, Ford, GM.)