Automotive Technicians Technical Discussion and Fixes for May 12, 2014

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	Help Request	Answers
	1993 BMW 740i 4.0L srs system VIN: WBAGD4324P Good morning everyone. I have a 93 BMW with the SRS light flashing, but my real problem is I am unable to communicate with any modules on the car with autologic or Snap-on Verus. I have tried unplugging most modules to see if one is causing the problem, but no...	View
	2005 Buick LaCrosse CXL 3.8L door locks VIN: 2G4WD53215 Customer states that both remotes quit working and ordered 2 new ones. I tried to program w/tech2 and no response. Tried a new receiver and no success. I can't find anything in body control module that would show if BCM is getting signal from receiver. If I un...	View
	1990 Chevrolet Lumina 3.1L Runs for 20 seconds, VIN: 2G1WL54T6L Another shop asked me to look at this because they feel it is electrical which is my specialty. You can start it up, runs [...] or so and then quits. Will restart and do the same thing. I went around the fuel pump relay with a jumper and the fuel pump does...	View
	2000 Chevrolet Silverado 1500 5.3L drl VIN: 2GCEK19T7Y The drl dont work on this truck. Has auto headlamps on all the time.If you disable the drl with the dome overide button, the auto headlamps are disabled (normal).Body code b2647-light sensor circuit is stored.Did find a bad light sensor and replaced it. BCM sh...	View
	2001 Chevrolet Suburban 1500 5.3L MIL Lamp on VIN: 3GNFK16T71 i guys i have this 2001 suburban with code [...] p1153 insufficient 02 switching on both banks the code set at 47 mph i change air flow check fuel pressure 66psi can it be bad 02 sensors thank you need some help	View
	2005 Chevrolet Cobalt 2.2L Hesitation, Surge, Stall VIN: 1G1AK52F05 Hello, need some help on this on. 2005 chevy cobalt. Had an issue with the "service power stearing" light coming on and traction control light coming on solid and trans shifting funny. You stop car and turn engine off and then back on problem goes away. Will i...	View
	2007 Chevrolet Silverado 1500 WT 5.3L Engine VIN: 3GCEK13377 Gentlemen, Got this 07 Silverado here with a P0300. Dead miss on #7 at idle with low compression. At highway speeds, higher rpms it is not so noticeable. I'm going to pull the VC in the morning to check out the lifter/rocker arm travel. Because I know that t...	View
	2008 Chevrolet Uplander 3.9L p2070 VIN: 1GBDV13WX8 Is any one familiar with the uplander in take tuning valve. I have not worked on this system and have been testing and believe it to be the valve motor. Any help would be great	View
	2003 Chrysler PT Cruiser GT 2.4L Stall VIN: 3C8FY78G73 Thanks for help in advance! have a turbo pt cruiser here that stalls at idle(only in gear)restarts with no issue. At first we thought happened randomly but came to notice only likes to stall in gear no throttle when a/c is turned on or p/s switch switches to h... Trouble codes: P0700, P1790 (Fault after shift), P0734 (Gear ratio error in 4th)	View
	2001 Dodge Intrepid SE 2.7L instrument cluster VIN: 2B3HD46R61 battery will go dead if the car sits over 10 days , elderly owner does not drive much . if the car is started every few days there is no concern . if the instrument cluster is disconnected the draw disappears , main concern is the cost to repair over 1200$ , s...	View
	1989 Ford F-350 Custom 7.5L Poor Fuel Economy VIN: 2FTJW35G3K Customer cam in complaining about poor fuel mileage. This truck even in top shape dont get really good gas mileage but customer is stating that it has been really bad. We found the catalytic converter falling apart, replaced that. The truck drives better, and ... Trouble codes: 33 (Egr)	View
	2005 Ford E-450 Super Duty 6.8L Will Only Idle VIN: 1FDXE45S35 Thank you in advance for any help. This vehicle was towed in with this problem. It will start right up and idle. It idles very low (475 to 500 RPM) but will not accelerate at all when pedal is pushed. Occasionally it will flair just slightly but no more than t... Trouble codes: P2104 (TAC Forced Idle), P2112 (TAC Stuck Closed)	View
	2006 Ford E-450 Super Duty 6.8L steering VIN: 1FDXE45S36 I currently working on a 2007 Ford E450 motor home chassis with 38,000 miles on it...Motorhome has performed flawlessly until a few days ago..She was on her way back to Ohio from Florida..The front-end started shaking so violently that things were falling of t...	View
	2008 Ford Taurus SEL 3.5L engine VIN: 1FAHP24W08 had two codes p0340 camshaft position sensor bank one sensor signal and p0344 camshaft position sensor bank one intermittent, checked power and ground from ECM replaced the ECM has no signal on the signal wire of bank one checked continuity of the wire ok chec...	View
	2004 GMC Sierra 1500 SLE 4.3L curosity VIN: 1GTEC14X34 We put the scanner on this truck after a maintenance tune up and found cam retard to be -17deg around 1000 rpm. I believe that 0deg is normal. Will moving the distributor gear 1 tooth counter clockwise bring this in line or will that be too much. No codes. No ...	View
	2008 GMC Sierra 1500 WT 5.3L fuel gauge, engine VIN: 1GTEK19048 replaced fuel pump assembly, because leaking. Since, lot of touble with erratic fuel level, intermitent fuel light on, custommer says that engine wants to stall when occurs. I have replace first by an aftermarket unit, with a first come back. I thought the gau...	View
	2007 Hyundai Santa Fe GLS 2.7L 2-3 shift VIN: 5NMSG13D07 customer complaint of hitch when shifting around 20 mph, duplicated customer concern repetitively can get it to do it every time. trying to get some hyundai techs advice on what to watch watched everthing on the genisys scan tool that i could under transmssion...	View
	1999 Isuzu NPR 4.8L engine VIN: JALC4B149X This 99 Isuzu NPR 4 cylinder diesel will not start. has been sitting for a couple years. The starter and batteries are good. Good cranking rpm and sounds like it is smooth compression wise. Will hit on silicon spray. Glow plugs are not working, but it is 90 de...	View
	1999 Jeep Grand Cherokee Limited 4.7L MIL Lamp on VIN: 1J4GW68N7X Minor tune-up and trans service a couple of days ago. Customer called today and said low coolant light came on. When he brought the Jeep in, the coolant light was out, but the MIL was on. Coolant level was normal. Checked for codes--none. Checked with another ...	View
	2000 Mercedes-Benz ML55 AMG 5.5L ABS module VIN: 4JGAB74E2Y Need help in identifying and locating a replacement ABS module for this vehicle.Car-Part shows 5 different ones and none of the numbers match.The only numbers on it are MCU 4 ESP 10.[...].1 344164 [...].Don't see anything close to the numbers that Car-...	View
	2003 Mercedes-Benz C240 2.6L Poor Idle Quality VIN: WDBRF61JX3 Ok Mercedes people, need your help with this 2003 C240. Came in barely running. Found two coils and ign wires cooked (plugs look good). Replaced them, cleared the codes with my launch and drove. Ran good for about two minutes and started dropping the 3 cylinde... Trouble codes: P2050, P2054, P2052, P2056	View
	1997 Nissan Pickup 2.4L MIL Lamp on VIN: 1N6SD11S3V this vehicle brought in failing emissions. code p0105. i checked map sensor connectors and such all good. scanner indicates a 3.32 voltage reading that does not change. the actual voltage is 4.2 and when switching to map it drops to 1.2v. these numbers are goo... Trouble codes: P0105	View
	2005 Nissan Maxima SL 3.5L engine VIN: 1N4BA41E95 guys i need help. this car was at another shop where it came for no start. engine died while driving.that shop said it had low compression and changed the engine. it ran great. then it died on them too. they changed cmps and ckp.nothing. they changed the compu...	View
	2005 Pontiac GTO 6.0L start VIN: 6G2VX12U25 we replace the pcm in this car due to alternater changing problem. I am now programing the new PCM with tech2 and tis the problem is i need to program the PIM to ECM link but the customer loss the sercurity card with that information. can any of you guys get t...	View
	1976 Porsche 912 E 2.0L Excessive Emissions VIN: 9126001535 Trying to pass the Califorina smog inspection on a 912e. car fails at low end dyno check. car is all original except the thermal reactors have been removed. we tuned it and put in 100 octane fuel. At idle the CO is only 1.0%. but when it is put on the dyno the...	View
	1998 Porsche Boxster 2.5L ignition VIN: WP0CA2981W We have a car that was towed in with a no crank issue. Has new battery, and we get a signal coming from ignition but no crank. Also we can bypass the ignition and the car cranks but does not start. We have tested most components in the system. There is power t...	View
	1999 Toyota 4Runner Limited 3.4L Poor Idle Quality, Stall VIN: JT3HN87R8X Customer complaint is it stalls sometimes at stop light. Vehicle only does this about once a week but i cannot duplicate the condition. No codes in system and tps has been replaced. I am thinking idle speed control motor but don't want to just throw a part at ...	View
	2010 Volvo C70 T5 2.5L MIL Lamp on VIN: YV1672MC3A Car runs good, MIL is intermittent. We know we have a bad sensor. Question one is it looks like it is held in by a Torx screw right with not a lot of room to get it out. Can it be done in place with a magic Torx wrench or do we need to remove the intake manifo... Trouble codes: P2178 (Long term fuel trim load bank 1 21ad), P0089 (Fuel pressure 2900), P0191 (Fuel pressure sensor 2800)	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2000 Audi A8 Quattro 4.2L starter VIN: WAUFL54D4Y thanks to everybody. It was clear that I had to install another starter. I did it and the crank sensor was bad. The code would come back after a crank. Installed a new crank sensor and upon cranking something jammed. Told the customer to remove the transmiss...	6
	2001 Audi A6 Quattro 2.7L No Start VIN: WAUED64BX1 Started out with a no start with cam sensor faults, faults are fixed but I'm still pursuing the no start. However I've verified the belt and timing chains are correctly aligned, I've reset the reluctor /crankshaft trigger, after finding it can be installed sev...	12
	2006 Audi A4 2.0L esp light VIN: WAUDF78E76 Well let me state this first,we already had an issue with the abs esp module and had replaced it with one we acquired from BBA reman.This is not a abs module problem but a powertrain can bus issue.pretty sure it is in the gateway module,but due to lack of info...	2
	2010 Audi A4 Quattro 2.0L Oil Pressure VIN: WAUBFAFL0A Ok so here it boys there is a sensor located in the front of the engine that Audi calls a oil regulator.It opens and closes the clearances to the oil pump drive gears,we replaced that and it make the oil pressure respond much quicker up and down depending on t...	12
	2007 BMW 750Li 4.8L Misfire, MIL Lamp on VIN: WBAHN83587 I'm sorry it took so long but this car is still not fix . After we pull the valve cover many times in and out and no fix we send the car to two BMW specialist the first one told me that it jumped a tooth on timing chane but the the marks are right in position ...	8
	2006 Cadillac SRX 3.6L Numerous codes VIN: 1GYEE637X6 Unfortunately this customer was fed up with the problems that she was having and decided to go trade it in for another vehicle. She had not owned it very long. I do appreciate those that responded to this post. Every bit of helpful information is appreciate... Trouble codes: P0318 (Rough Road sensor circuit), P1629 (Theft Deterrent Fuel Enable Signal Not Received), U1040 (No Communications EBCM), U1064 (No Communication DIM), U1153 (No Communication Climate control), U1192 (No Communication Theft deterant).	3
	2009 Chevrolet Aveo LT 1.6L Door Locks VIN: KL1TG56E99 THANKS FOR ALL THE HELP GUYS. TRACED IT BACK TO A BAD DRIVER FRONT DOOR LOCK SWITCH MODULE. LOCKS ARE WORKING GREAT NOW THANKS.	5
	2009 Chevrolet Cobalt LT 2.2L Excessive Emissions, No Start, Poor Idle Quality, Surge, Stall, MIL Lamp on VIN: 1G1AT58H39 Finally got this one fixed. Thanks for all the help. After searching the archives, I found a photo of a camshaft that showed the cam sensor trigger wheel had slipped. I then unplugged the cam sensor and started vehicle, it ran smooth. I ordered and cam and... Trouble codes: P0014, P0106 (MAP pressure circuit out of range).	12
	2007 Chrysler Pacifica Touring 4.0L Stall VIN: 2A8GF68X37 replaced egr valve and cleaned throttle body. returned car to customer and has had no additional stalling issues	9
	2005 Dodge Durango SLT 4.7L Misfire VIN: 1D4HB48N35 WE PERFORMED A COMPRESSION TEST HOT AND COLD READING WERE DIFFERENT BOTH TIMES LOWEST ON COLD ENG WAS 76 PSI AND HOT WAS 95 PSI. CUSTOMER ASKED FOR OPTIONS AND BEST WAS TO REPLACE ENGINE INSTEAD OF THE R/H HEAD. THANKS FOR EVERYONE'S INPUT. SOMETIMES YOU JUST ... Trouble codes: P0308 (Cylinder 8 misfire).	13
	2000 Ford F-250 Super Duty Lariat 7.3L No Start VIN: 1FTNX21F3Y IT'S FIXED! LET ME START BY THANKING EVERYONE WHO REPLIED! YOUR KNOWLEDGE HELPED IMMENSELY! I TOOK ALL THE RECOMMENDATIONS AND STARTED CHECKING EVERYTHING. THE HPOP PRESSURE WAS READING 975 PSI AFTER 8 SECONDS OF CRANKING ONCE I INSTALLED THE NEW VALVE. I VERI... Trouble codes: P0340 (Cmp censor circuit malfunction), P0470 (Exhaust back pressure circuit malfunction), P1211 (Icp not controllable pressure above/below desired).	18
	2012 Ford Focus SE 2.0L No Start VIN: 1FAHP3F29C Yes it was the TCM. Towards the end it wouldn't allow engine to ever crank, and a warning came up that said "transmission overheating". Hope this post helps someone else. Bryan Trouble codes: P0850 (Park neutral switch input), P0607 (Control module performance), P06B8, P0884 (TCM power input intermittent), P087E.	6
	1997 Jeep Wrangler SE 2.5L No Start VIN: 1J4FY29P0V the customer is still looking for a computer. I will update when I can	9
	2011 Kia Sportage EX 2.4L Reverse Lights VIN: KNDPCCA22B Thanks to everybody who tried, I unplugged trany sensor,BCM,INSTRUMENT CLUSTER,PCM, and light still on if I unplug smart module under knee bolster cover lite goes out.put new smart module in vehicle still on.sent to dealer. they were no help, told me it was i...	6
	2006 Mercedes-Benz ML500 5.0L no shift no reverse Knocked off the oil pan and saw transmission was toast. Replaced transmission with used one and installed conductor plate with tcm from old tranny and all is well now. Thanks guys!	6
	2006 Mini Cooper S 1.6L MIL Lamp on VIN: WMWRE335X6 I TESTED THE LEAK DETECTION PUMP SEVERAL TIMES AND AT ONE POINT IT DID NOT FUNCTION HOWEVER CUSTOMER DID NOT WANT TO REPAIR AT THIS TIME, Trouble codes: P2404 (Evap emission system leak detection pump circuit).	5
	2006 Mini Cooper S 1.6L No Start VIN: WMWRE33566 The problem was the dash was no communicating and shut car down. The car went to the mini dealer and they put a dash in and car ran but the second part of the dash did read the mileage correct. thanks again AITN	3
	2004 Nissan 350Z Touring 3.5L Misfire VIN: JN1AZ36AX4 Thank you everybody for the help. We ended up having a bad pin fit at the ECU for the coil signal wire for cylinder #1. We also had fouled spark plugs 1-2-4, which I assume is why it set a P0300 instead of P0301. Trouble codes: P0300.	8
	2009 Nissan Quest 3.5L MIL Lamp on VIN: 5N1BV28U99 Alright guys, there was an intake leak at the hose going to the PVC valve underneath the intake manifold. We smoke tested the hell out of this car but for some reason couldnt see any leaks. Maybe using propane would have narrowed it down. Trouble codes: P0171 (Lean bank 1), P0174 (Lean bank 2).	8
	2005 Volkswagen Passat GL TDI 2.0L MIL Lamp on VIN: WVWNE63BX5 after all the tests everything seems to be working normally. no leaks in the system eventhough the actuator rod moves nice and smooth it possible we have issue with turbo.customer took the car he needed it he will bring it back later when he's off from work. Trouble codes: P0299 (Turbo underboost).	16
	2005 Volkswagen Jetta GL TDI 1.9L Mechanical VIN: WVWRR61J45 mr Michael from new jersey thank you very much for your help we took out the exhaust manifold found turbo seized thanks thanks thanks	11

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