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Prev Professional Automotive Repair Technical Discussions for November 30, 2017
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Open Help Requests for All Makes and Models
Help Request Answers
2005 Audi A4 1.8L engine wiring harness VIN: WAULC68E95
hello have this audi that caught fire on the passenger side by the firewall next to cylinder head. there is no breaks in the wiring loom. cut harness open and bunch wires melted together. two wires tho are obviously the culprit. They go to the evap purge v...
2011 BMW 328i 3.0L Camshaft Sensor VIN: WBAPH7G56B
Vehicle was brought in for a whistling sound. Technician found that the PCV was leaking oil. Valve cover was replaced and test driven. Customer picked up vehicle and drove 71 miles. Vehicle stalled and would not restart. Towed vehicle back to shop. Multipl...
2012 Chevrolet Cruze LT 1.4L Valve train VIN: 1G1PE5SC9C
Hey guys good morning, I have this 2012 chevrolet cruze that came in for routine PM and complaint of a clicking noise. I have verified that the clicking noise is coming from the valve train and when you rev the engine past 1500rpm the noise fades out. S...
2016 Chevrolet Silverado 3500 HD LTZ 6.6L Trailer Brake Control Module And Ip Message Servic VIN: 1GC4K0C88G
I have a 2016 - 17 chevy silverado 3500 hd service trailer brake system scanned for dtc u0073 and u1556 lossof communication with device 6 . At this time i am unable to locate any information on this ? customer brought the vehicle and a new tbcm trailer br...
1984 Dodge 600 2.6L No Start VIN: 1B3BV55D8E
I have this 84 dodge 600,the customer said they washed the engine then it wouldn't start.i found the pcm sends a constant voltage to the coil and a constant ground.there is no power to the injector, it is a throttle body.it has no spark or injector pulse.im no...
1994 Ford F-150 XL 4.9L Poor Idle Quality, Poor Idle Quality VIN: 1FTEF15Y0R
Truck came in with a rough idle cold or warm. I pulled a plug and it was worn out so i preformed a tune up. Replaced plugs, wires, cap, rotor, fuel filter and injector clean. Ran a cranking compression test and all within 10% besides #2, it had 90 psi inst...
2001 Ford E-350 Econoline Club Wagon XLT 5.4L Poor Idle Quality, Hesitation, Stall VIN: 1FBSS31L81
Van came in on trailer by cust, runs real bad cold starts and dies three or four times and then runs rough for about ten min. won't take fuel pops and bogs. After gets hot will take gas slow and idle good can road test still won't take fuel fast. Fuel pres... Trouble codes: P1150, P1151, P0171, P0174
2013 Ford F-550 Super Duty XL 6.7L Cuts out, MIL Lamp on VIN: 1FD0W5HT3D
The following is a run down of all tests performed and all components replaced on the F550 – VIN# [...] Recurring Code – P0093 – Large leak. Code usually sets at high demand or max fuel pressure of 29K psi. Commanded and actual pressures are w... Trouble codes: P0093
2013 Ford Fusion SE 1.6L 2-3 shift VIN: 3FA6P0HR8D
Fast forward to today. Customer came in and said that she is still feeling some
2006 Hyundai Tucson GLS 2.7L MIL Lamp on VIN: KM8JN12D96
Vehicle came in with check eng light on, with code p0174 system to lean bank 2. We checked for vacuum leaks and found none, no high idle, no ruff idle or misfire jus the light is on. Cleared code and test drove a few miles and check eng light came back. Th... Trouble codes: P0174
1997 Mazda B2300 2.3L Poor Idle Quality VIN: 4F4CR12A5V
This truck for as long as I have known since it has been coming into my shop has always had a knarly idle. Not really uncomfortable,very drivable, never stalls but with just a hint of misfire even though it does not show up on Mode 6 diagnostics. Fuel trim... Trouble codes: P0135 (H02 htr rh upstream)
2010 Mazda CX-7 Grand Touring 2.3L Cel VIN: JM3ER4W33A
Vehicle was bought at auction to resell. CEL was on with P0012 code, rattle at startup, and turbo leaking oil. Replaced turbo and necessary components. Following T-SB for related CEL code, replaced timing chain, VVT gear, guides, tensioner, crank bolt, and...
2013 Nissan Versa 1.6 SV 1.6L Transmission VIN: 3N1CN7AP3D
CVT trans. Sets code P0705. Has very hard engagement from rev to drive and check engine light is on. Trans has slight whine noise and does not always harsh engagement. Suspect more than just range sensor problem. Anyone had similar experience with this cod...
2009 Suzuki Swift+ 1.6L MIL Lamp on VIN: KL5TJ66E39
came back next day with light on again check heater circuit resistance and found it below spec again. we did reset the learned heater resistance for the upstream o2. the temp here is around 0c and we keep having the resistance come in below spec. we are us... Trouble codes: P0053
1998 Toyota Avalon XL 3.0L temp and mode VIN: 4T1BF18B8W
have this old avalon with automatic a/c. fan speeds work, compressor engages when commanded. however i have no mode operation-airflow only out the dash vents, and no temp control just cold air. did try a control head with no change. kind of a crazy system ...
2012 Toyota Tundra Limited 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5TFBW5F11C
Got this Tundra that runs rough at idle and has very negative long term. B1S1 and B2S1 both do not fluctuate much at idle or highway--run around .9-1.00. B1S2 and B2S2 stay around .9 idle or down the highway but will drop to .1 when letting off the throttl... Trouble codes: P0172, P0175
2004 Volkswagen Jetta GL 2.0L No Start VIN: 3VWRA69M04
Hi guys I'm having some trouble with this VW. The customer originally called and wanted a estimate for a timing belt before Thanksgiving, ok no big deal. We come back from our long weekend and find the car sitting in our parking lot again no big deal. Go t...
2009 Volkswagen Beetle 2.5L power window VIN: 3VWRG31C79
Ok VW people, I have an interesting one for you. This 2009 Beetle came in for the power windows not working. The drivers window motor/door module has perfect B+ and ground but has no voltage going to the wht/rd and wht/grn wires for the window switch. I fi...
2012 Volkswagen Passat SE 2.5L No Start, Hesitation VIN: 1VWBP7A3XC
Vehicle came in with a check engine light and running rough at idle. Discovered that the PCV oil separator was leaking from the diaphragm on the valve cover. Removed and replaced valve cover and gasket. Proceeded to start the vehicle after repair and now i... Trouble codes: P0106 (Map sensor circuit), P0300 (Random misfire), P0171 (Lean on bank one)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1996 Acura TL 2.5L Excessive Emissions, Poor Idle Quality, Hesitation, Poor Fuel Economy, Low power VIN: JH4UA2652T
FIXED!!! Bad ECM, for reasons unknown the Programming inside the ECM must have gotten corrupted or some component must have failed causing the overfueling condition. My guess is that before I got the car the alternator died in a catastrophic way and sent a vol... Trouble codes: P0301 (Cyl1 misfire), P0300 (Random/multiple cylinder misfire).
2012 Buick Enclave 3.6L Excessive Emissions, Misfire, MIL Lamp on VIN: 5GAKVDED3C
Ok the first time when the car came in it was doing the same thing as this time, my boss worked on it he told me the next day after I've posted the help request, the only thing was not doing was the smoking, speaking of smoking, by the next day the smoke was g... Trouble codes: P0300 (testing and results).
2009 Cadillac DTS 4.6L windows locks radio turn sigs VIN: 1G6KD57Y09
Thanks For the Replies.Checked All Grounds First Then like Chris said time to start unplugging modules. Started at DS door module 5 plugs.Pulled brown plug and radio started playing. Reached in and started car.UNREAL. Ordered switch from dealer, had to program...
1997 Chevrolet K1500 Cheyenne 5.7L No Start, Stall VIN: 2GCEK19R9V
Well sorry for the long delay and lack of update but we can finally call this one fixed! It turned out to be a bad ECM. I had the feeling the first time I looked at it, like some of you, but I have condemned very few computers over the years and that's what ke... Trouble codes: P0121 (TP sensor system performance).
1999 Chrysler Concorde LXi 3.2L bus VIN: 2C3HD46J0X
Long story short, replacing the TCM fixed this one. I decided to hook up a set of jumper cables from my truck to see if the pcm triggering the alternator was the cause or the increase in voltage. Sure enough the bus dropped out even when it was being charged f...
2007 Chrysler Sebring 2.4L No Start VIN: 1C3LC46K17
Thanks to everyone.this unit (tipm)is plug and play like everybody suggest.Bought it from dealer(it said remanufactured.It comes with instruction sheet.Turn sw to run position for 12 seconds then off and done.Daniel [...] suggest to make sure iod fuses are p...
2013 Chrysler Town & Country Limited 3.6L l/f heated seat VIN: 2C4RC1GGXD
thanks to everyone who replied, I should've followed my mind on this one and not the trouble tree.. replacing the seat element on the cushion of the l/f seat was the fix.. I was worried this would be a pain, Chrysler told me it calls for 2 hours.. I brought it...
2002 Dodge Ram 1500 ST 4.7L No Start VIN: 1D7HU16N12
hello sry for the late reply. we have fixed this truck it was the fuse box we replaced it and bam. truck fired right up. thanks Trouble codes: P1389.
2003 Dodge Dakota 4.7L Oil consumption
Thanks to all for the replies. That's what I expected but I don't have much experience with the 4.7 . We advised BNSF and this one is headed to the bone yard. Thanks again and Merry XMAS.
2007 Ford F-150 XLT 4.6L MIL Lamp on VIN: 1FTRX14W37
Thanks to all that replied to our request! We are still working to resolve this issue. We have engaged 2 different tech support lines to no avail. Will report our fix once we find it. Trouble codes: P0106 (Manifold Absolute Pressure/ Barometric Pressure Circuit Range/ Performance).
2006 Kia Optima LX 2.7L hard start when fuel VIN: KNAGE12416
Sorry for the wait on the fix post, I wanted to be certain that the car was fixed. Thanks to all who replied, It turned out to be as most said... the purge valve had debris in it from the original canister. I removed faulty purge valve, and disconnected purge ... Trouble codes: P0441, P2422.
2015 Lincoln MKZ Black Label 2.0L Power Trunk Lid VIN: 3LN6L2G91F
Thanks to Michael and all others who walked me through this. I replaced the Rear lift-gate/trunk module and had it programed at the local dealer since My scan tools did not have the ability to load as built data. Operation is good now. Thanks for all the help.
2010 Mazda CX-7 Grand Touring 2.3L timing VIN: JM3ER4W33A
sorry for the confusion, I put KOEO by mistake. I meant to put KOER. The KOER self test set a pending p0012 code. I am going to rewrite this and repost. Again, sorry for the confusion.
2013 Mazda 3 Mazdaspeed 2.3L MIL Lamp on
Thanks everyone for it helps like I stated before the car never had an actual misfire I do have some secondary ignition waveforms and cam crank correlation and exhaust pulses waveform and also misfire counters never went up still don't know why the misfire c... Trouble codes: P0300.
1988 Mercedes-Benz 300SEL 3.0L No Start, Poor Idle Quality, Hesitation, Stall VIN: CA25D1JA42
Thank you for everyone who replied to this post, had some Great input, first of all I had the fuel pressure tester hooked up to supply line (wrong way), changed it so it was hooked up right and fuel pressure is at 85 running KOEO 45psi. Checked to see if check...
2006 Mini Cooper 1.6L No Start VIN: WMWRC33556
Tested and cleaned connectors at throttle body and DME. Replaced DME control module, part number [...]. Trouble codes: P1693, P1692.
2002 Oldsmobile Intrigue GL 3.5L Stall VIN: 1G3WS52H52
We replaced the crank sensor with a GM sensor and cleaned wires, did the relearn and sent it down the road have not heard anything back Trouble codes: P0335 (Ckp), P1372 (Ckp).
2004 Other European 156 2.0L low beams / position lights VIN: ZARFB412X4
Thanks for the help. Looks like only option is the alldata europe for the wiring diagram. Also customer is checking if they can provide one at dealer service department in cd. mex. Saludos from Cabo
2005 Volkswagen Beetle GLS 1.8L Misfire, MIL Lamp on, On start up VIN: 3VWCD31Y05
thanks to all for the help- as as service advisor i don't always list the tests we have done- sorry for that! We caught the mass air flow meter showing 13.22 gps at idle and that caused a 48% load on the engine causing the control unit to over fuel the car and...
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