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Prev Professional Automotive Repair Technical Discussions for June 17, 2015
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Open Help Requests for All Makes and Models
Help Request Answers
2008 Audi A4 2.0L MIL Lamp on VIN: WAUAF78E28
Hello Audi Techs, We smoke tested the intake and found no vacuum leaks. We replaced the Cut Off valve (06H 145 710 D) for the Turbo,the diaphragm was filled with oil. We took the car out on a long drive and we have the same code returning (P0299)as a pending c... Trouble codes: P0299 (Boost Pressure Regulation)
2009 Audi A4 Quattro 2.0L engine VIN: WAULF78K39
Car towed crank, no start. No compression. Another CAEB with a catastrophic valve train failure. Rebuilding this oil burning engine the correct way would have require at least all the timing parts, 8 intake valves, 4 pistons with rings, 4 rods, and an intake c...
2007 BMW M6 5.0L Electronic VIN: WBSEK93507
Hello BMW Techs, We have a winner, vehicle was towed in stuck in gear, we used the Auto Logic scanner to get the vehicle back in neutral. We put the car in gear and tried to move the car and it got stuck in gear again. With the Auto Logic we got the car back o...
1989 Buick Regal Limited 2.8L Hesitation VIN: 2G4WD14W9K
Customer complained that car has no power on take off. It will get up to cruising speed and run good. Starts and idles great. Checked fuel pressure it was at 28. Replaced the fuel pump, screen and filter also spark plugs at customers request. Fuel pressure is ...
1998 Cadillac DeVille 4.6L Cruise Control VIN: 1G6KD54Y3W
Hello. This is more of a confirmation request, than a help request. This '98 De ville came in for air shocks and intermittent Cruise control loss. A manual airline kit was installed on the new air shocks and the compressor was un-plugged. At the time of the ...
2002 Chevrolet Silverado 1500 HD LS 6.0L Misfire, MIL Lamp on VIN: 1GCGK13U92
Got a real pickle here.Truck has Miss fires,seam only at idle,more counts cold,and at time flash check engine light.Plugs, New gape checked,with wires,all done by customer trying to solve miss fire(A/C delco)Miss fires watching on scanner both banks,at random ... Trouble codes: P0300 (Multi MISS FIRE)
2004 Chevrolet Silverado 3500 LT 8.1L Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on
hello to all and thank you ahead of time for anyone that can give me some insight to what should be impossible. after performing the repairs on this truck, we did a compression test. my brother did all the original work before I got there to take over. cylinde... Trouble codes: P0300 (p0301-), P0301 (testing and results)
2001 Dodge Ram 2500 5.9L Timing Case VIN: 3B7KF23771
Weve been coming up short on ideas as to the issue at hand. Customer stated necessary to shut vehicle off due to major noise in front of engine. Engine would not re start or turn over. Once inspected 2 days after incident. Vehicle turned over and started up th...
2003 Ford F-250 Super Duty Lariat 7.3L headlight VIN: 1FTNW21F93
Customer originally came in with dim headlights. The passenger headlight was brighter than the driver but he was driving with high beams on just to see anything. Customer replaced headlamp lenses with aftermarket, no change. Brought to our shop, we cleaned, sc...
2004 Ford Excursion Eddie Bauer 6.0L egr monitor incomple VIN: 1FMSU45P14
This 2004 Excursion 6.0 (with ca. emissions) will not run and complete the EGR monitor. Here in CA. all the diesel monitor must complete to allow a smog test. We have tested all supporting systems and there are not DTC codes. Function tested of EGR passes. We ...
2005 Ford Five Hundred Limited 3.0L Differential VIN: 1FAHP28115
this is the second diff was a used unit that had been installed by someone else also but no codes until this swap any ideas?
2006 Ford Expedition Limited 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMFU205X6
Vehicle came in with misfires that are very pronounced on 1 and 3 under heavy acceleration. Had a code for intake runner control stuck on bank 1 so we removed the intake to check for the cause, replaced the imrc actuator and the installation kit, tested power ... Trouble codes: P2006
1995 Honda Civic DX 1.5L Cabin VIN: 2HGEH2469S
Horrible vibration/feels like cabin pressure on ears at idle in park and all gears due to engine vibration oscillating through cabin. Customer stated last engine didn't do this. any thoughts/ideas or fixes if you've experienced this issue
2000 Honda Civic DX 1.6L Excessive Emissions, Rich air fuel VIN: 2HGEJ6618Y
We have repaired the leaking cylinder head gasket and its still running rich. We have replaced both oxygen sensors, replaced map sensor, checked timing marks (ok) checked evap canister purge solenoid, had fuel injectors flow checked cleaned , and changed to pc... Trouble codes: P0172 (The fuel system is too rich)
2002 Honda Accord EX 2.3L High rpm shifts VIN: 1HGCG66802
Hello everyone, this problem may not be a problem at all. However, honda guys may have seen this situation. Another technician at my shop changed out a crank seal for a leak and replaced timing belt and water pump in the process. Customer came back in for a be...
2003 Honda Accord EX 3.0L hvac air temp VIN: 1HGCM66813
driver side a\c not cold checked drivers side blend door and motor seams fine removed motor and worked door by hand no change air well go hot but not cold just a little cool passengers side is frosty. ran borascope into vent seams as if door is functioning pro...
2009 Hyundai Elantra SE 2.0L Low Side Hose VIN: KMHDU45D29
We tested the system for leaks and flow through both the condenser and evaporator before replace expansion valve. Replaced expansion valve and put system into vacuum, hoses still collapsed and felt extremely soft. Ordered new hoses and installed, put into vacu...
1999 Jeep Cherokee Sport 4.0L Poor Idle Quality, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1J4FF68S0X
Approximately, one month ago, I did a complete cylinder head job on this vehicle including all related repairs listed in history. I had the customer come back after two weeks to re-flush the cooling system due to the excessive rust in the system causing previo... Trouble codes: P1391 (Chrysler - CMP or CKP Signal Intermittent Condition)
2001 Jeep Grand Cherokee Laredo 4.0L No Start, Cuts out, Stall VIN: 1J4GX48S91
Jeep was towed in after cutting out twice on customer and could not be restarted until cooling off for 30-40 minutes. I retrieved code P0320 from PCM, and after testing crank sensor for Reference voltage (5 volts) a good ground and continuity up to PCM on the ... Trouble codes: P0320
2003 Jeep Wrangler Sport 4.0L No Start, Stall VIN: 1J4FA49S13
Jeep drives fine until u let it idle for about 30 seconds. It will stall out and not restart. If you try to restart it without shutting the key off first it will crank for ever and ever. Sometimes it will start right up on the next key cycle but it usually tak... Trouble codes: P0320 (no crank ref.signal at pcm.)
2003 Kia Sorento EX 3.5L engine cooling fan VIN: KNDJD73313
car came in for a/c not cold. system at full charge. a/c compressor engages, smaller condensor fan comes on at 250 high side pressure, but engine cooling fan NEVER comes on. checked all relays (swapped) and all fuses. have a good ground signal on the white wir...
2001 Lexus RX300 3.0L windows, gauge cluster, DLC VIN: JTJHF10U51
Symptoms: WATER in floor boards Coolant Temp not reporting in cluster In Dash Display INOP Windows INOP at Driver's switch panel (work at individual doors) Customer came in complaining of above, claims symptoms existed before battery install, windows will n...
2002 Mazda B2300 2.3L No Start VIN: 4F4YR16D22
thanks everyone in advance. this mazda came in on the hook with a crank no start. only had 3 psi fuel pressure gs started truck with carb clean. we changed fuel pump and now have 62 psi. however we dont have any spark. alldata does not seem to provide any circ... Trouble codes: P1432
2010 Mazda 3 i 2.0L Electronic VIN: JM1BL1SG4A
Mazda Techs, This vehicle came in with a CEL. No other complaint besides that. The listed codes were being stored. We cleared them and they came back within 5 minutes. We replaced all 6 solenoids with new parts and filled the transmission to the proper level...
1992 Mercedes-Benz 300SL 3.0L convertable top VIN: WDBFA61E4N
hello I have an old benz and the convertible top doesn't work. it came in in the down position and the cover would open to the full up position and the top wouldn't move the pump is full and there are no leaks after messing around I had someone operate the swi...
2010 Mercedes-Benz C300 Luxury 3.0L timing gear VIN: WDDGF5EB5A
Car failed emissions test. Codes P1208 - intake cam right bank signal and P1203 exh. cam left bank implausible. Based on codes, local dealer said balanceshaft gear broken. We have not done this job before, unsure how to confirm this. Removed metal oil pan - cl...
2009 Mini Cooper S Clubman 1.6L Stall, Misfire, MIL Lamp on VIN: WMWMM33539
The Vehicle was running fine, 1. Changed Spark Plugs for Maintenance with OE NGK. 2. Drove 40 miles damaged a Valve and Ate a Plug on cylinder #2. Replaced valve and Machined Head replaced timing components with required locking tools. VANOS locked in position... Trouble codes: 2782 (misfire several cylinders), 2772 (DME combustion misfires 1), 2776 (DME combustion misfires 3), 277E, 277A
2006 Nissan Murano SL 3.5L MIL Lamp on VIN: JN8AZ08W66
Some backstory here. This vehicle was originally diagnosed at the dealer after the customer noticed it was burning excessive oil. The dealer decided this vehicle needed an engine after the catalysts failed and ruined the rings. The customer bought an aftermark... Trouble codes: P0021 (B2 A Cam Position Timing System Performance)
1996 Oldsmobile 88 Royale 3.8L abs sytem VIN: 1G3HN52K7T
I have this car abs light comes and goes, tried using our Autel scanner,checked for any abs codes,no codes in current or in history. With the Autel there was no data available. Then I tried our Snap on red brick, now I had data, so I road tested while monitori...
1997 Plymouth Voyager 3.0L Poor Idle Quality, Hesitation, Stall, no power VIN: 2P4FP2534V
hi there folks we have this van for timing belt job, after the timing belt job. when we started the van this problem occurred. idle rough, hesitation, no cel, spotting, no power. so first we taught we made a mistake on timing marks, we open it all marks lines ...
2003 Saab 9-5 Linear 2.3L Poor Idle Quality, Hesitation, Surge VIN: YS3EB49E33
Hello guy's and girls, I have a saab 9-5 turbo. I put a fuel pump in it about 4 months ago for a no start condition, a month later he brought vehical back for almost stall and I found boot going into throttle body popped off, re fastened and cleared code all w...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2003 Audi S6 Avant 4.2L Cylinder heads VIN: WAUXU64B83
We never did find a measurement that was correct for this engine, but the car is up and running now. My machinist finally had to do as Brooks suggested and figure it out based on an old valve that was straight enough to get a measurement from. We knew all alon...
2007 Audi A6 Quattro 3.2L no problem VIN: WAUKH74F07
thanks for all your help we sent it to the dealer and it turned out the battery was bad it was new and the new battery needed to be coded to the car not sure how that would do anything with a draw lets hope all is good
2004 BMW Z4 3.0i 3.0L Airbag Light VIN: 4USBT53514
I have this one fixed. Only got 2 replies on it, so thank you to Alan and Victor. Both of you agrees that it is a hall effect switch, so i couldn't test it like a regular "open-close" switch. So i just went ahead and got a used module. Plugged it in, and s...
2006 BMW 550i 4.8L Cooling Systems VIN: WBANB53566
2008 Chevrolet Suburban 1500 LTZ 5.3L Misfire, MIL Lamp on VIN: 3GNFK16348
yea, injectors crossed, 5-7, i thought when i took it apart "i should mark these" but it'll run bad if i cross them...well no. the colors did not jive so i had to pin out the pcm to injectors to make sure i had them correct. runs great now. never would i belie... Trouble codes: P0300.
2010 Chevrolet Malibu LS 2.4L MIL Lamp on VIN: 1G1ZB5EB2A
The short version was changed both solenoids. Now the long version, and first thanx all, great replies. So,,,the code description is a circuit code. Both sol's had resistance above spec. But that's not why the PCM thinks it's electrical. After start-up, the ... Trouble codes: P0013 (Exhaust cam actuator circuit).
2005 Chrysler 300 Limited 3.5L Cooling Systems VIN: 2C3JA53G35
2000 Dodge Durango 4.7L security system VIN: 1B4HS28N1Y
1992 Ford F-150 Custom 5.8L Poor Idle Quality, MIL Lamp on VIN: 1FTEX14HXN
Hello to all and thank you, most of your replies have said the TPS sensor. And that was it. With this old rig it could have been a nightmare! Thanks again
1999 Ford Windstar LX 3.8L Shifting VIN: 2FMZA5144X
Tested for high resistance in the transmission internal wiring harness found to have high resistance in leads from 9 pin connector to each connector at tcc solenoid and epc solenoid and all shift solenoids. Replaced internal transmission harness with a new ...
2002 Ford E-150 Econoline 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTRE14202
There was lean running only when cold in both banks but only Bank 1 was indicated as lean. The lean running condition went away as the motor warmed however. A smoke test did not reveal any leaks cold or warm. All vacuum lines and connections were checked as we... Trouble codes: P0171 (Bank 1 Too lean).
2010 Ford F-250 Super Duty King Ranch 5.4L drags in reverse VIN: 1FTSW2A54A
well we found that the rear limited slip was locked up the clutches were almost welded due to improper towing. Replaced it now no signs of dragging. It still makes noise from the transmission but I found out from the branch manager that a cooler hose came off ...
2012 Ford Focus SE 2.0L Starting VIN: 1FAHP3F25C
Still waiting for parts on this one. The main issue seems to be in the BCM that shows evidence of water damage. As near as I can tell what takes place is communication breakdown during the parameter reset procedure. The PATS function was able to clear the old...
2000 Jaguar Vanden Plas 4.0L 3rd gear VIN: SAJDA24C7Y
thanks for all the input, but sadly the customer is taking the car home and parking it until he figures out his next move. trans needs a rebuild or replacement and he don't wanna pay at this time. too many customers like this.
2008 Jeep Commander Sport 3.7L Condenate Drain VIN: 1J8HG48K88
Thanks to everyone for all of the help. I was able to locate where the drain comes thru the floor. With the vehicle up on a lift, I had lowered the transmission a little but that's not necessary to do this repair. I used a sharp knife and made a slit in the i...
2003 Kia Sorento EX 3.5L Air Bag VIN: KNDJD73373
The problem was isolated to the wiring harness. Unfortunately, there isnt one in the whole country apparently and a used one may be the only choice. It is the whole dash harness that has to be replaced. As of this post being closed it has not been completely...
2007 Saturn Sky Red Line 2.0L air bag system VIN: 1G8MG35X27
Thanks to all. There were no codes in the PPS system, but the B0081 Symptom 71 code would not clear. So I am ordering a seat cushion and module kit. I will update in the future when the problem is resolved. Again thanks to all.
2009 Subaru Outback 3.0 R Limited 3.0L Misfire VIN: 4S4BP85C69
Hi Guys. Sorry for the delay in responding and thanks for all of the replies. There was a lot of back and forth between the customer and I. He was confusing my ability to repair the car with my concern about getting paid for my time. I found out that I was the... Trouble codes: P0306 (Misfire cylinder 6).
2004 Toyota Prius 1.5L Surge, Misfire, noise VIN: JTDKB20U24
We decided to remove the injectors to inspect as Dan had mentioned because the trim number was too high and they were definitely plugged. Cleaning them brought the trim down from 10-12% at idle to 2%, but the catalyst WAS plugged. There was lots of ash depos...
2005 Toyota Celica GT 1.8L IG2 fuse VIN: JTDDR32T55
Well, looks like we have gotten to the bottom of this one. Removed PCM, battery, air intake, covers, etc to gain access to wire harness. Took the section of harness that runs from fuse panel over to cylinder head, removed loom and inspected wires. Found small ...
2006 Toyota Tacoma 4.0L Poor Idle Quality VIN: 5TEUU42N36
after all was said and done this vehicle is fixed. we dead headed the battery over the week end and just started the vehicle cold and it relearned the idle speed just fine. several web sites suggest the the process we were doing and have been doing for years w...
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