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Prev Professional Automotive Repair Technical Discussions for September 18, 2014
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Open Help Requests for All Makes and Models
Help Request Answers
2007 Audi Q7 Premium 3.6L shifter VIN: WA1BY74L27
Truck towed in, key turns, no crank. Message - shift to park. It is in park, shifter does not release from P except by override. Engine ECU - no communication with Trans Module. ABS also no comm.w. transmission. Tranny module can not be read. Fuse 8 in RH brow...
2010 Audi A4 Quattro 2.0L Engine VIN: WAUDFAFL9A
Car came in had a loud rattling noise all the time with the engine running,had code p0341, checked oil pressure it was with in spec. Disassembled the timing covers, tech disassembled variable valve timing unit, no problem found, replaced the timing chain tensi...
1992 BMW 325i 2.5L No Start, MIL Lamp on VIN: WBABB1313N
Hi Everyone, This vehicle will not communicate with my modis. I try on a 94 bmw 325I and it worked perfectly. I believe the equipment is ok. No communication. When cranking engine the check engine light will flash on and off. Customer was driving vehicle and c...
1998 BMW 540i 4.4L No Start VIN: WBADE6323W
hi everyone!!! of cource its a beamer problem. car came to me with a fluid leak. diagnosed and repair was the engine valley pan seal under the air intake. was very slow in repairs to ensure a good job was done with no mistakes. after all was repaired I went to...
2007 BMW 530xi 3.0L engine VIN: WBANF735X7
Hello everyone, this 07 530xi has codes 2A82 and 2A98. the cams sensors where replaced previously by someone else. The same codes come back. Done some search online and come up with cams adjust solenoids. Replaced them both, and first code to come back was 2A8...
1992 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP53L2N
No start.This is a shop car we bought.Car was running good when purchased.The only thing car needed was maintenance from sitting.Changed all fluids,plugs,wires,fuel filter,air filter,cleaned battery terminals.Car ran great afterward.Sat in shop overnight then ...
1990 Chevrolet Camaro RS 5.0L No Start VIN: 1G1FP23E4L
i have a 5.o with no spark buty i have injector and fuel i have pined computer for power and grounds and they all check good has new dist. and coil. any help or direction would be great thanks in advance doug
2007 Chevrolet Silverado 2500 HD Classic WT 6.0L Misfire, cuts out VIN: 1GCHK29U97
Came in to us from another shop. with new knock sensor, mass air flow meter, camshaft and crankshaft position sensors.new plugs and wires. issue is feels like the truck literally shuts off then comes back on in less than 1 second. fuel trim is off at 23%+ bank...
1997 Dodge Grand Caravan ES 3.8L pcm VIN: 1B4GP54LXV
Van came in for wipers not operational. Tested & found bad BCM. Replaced BCM and now when I start the van, it runs for about 2 seconds and cuts off. Label on new BCM said to insert key in rear hatch and turn to unlock position then return to middle position, t...
2003 Dodge Stratus SE 2.4L wipers/ turn signals VIN: 1B3EL36X43
no turn signal or wipers when key is on i do have a washer wipe when the key is turned back to acc
1994 Ford F-150 XL 4.9L Poor Idle Quality, Cuts out, Misfire VIN: 2FTEF14YXR
Thanks for the help in advance. This truck runs great when its cold. As soon as the engine gets up to temp it acts like it shuts down a whole bank. I probed the injector wires and don't seem to be losing injector signal. I hooked the timing light to every spar...
1999 Ford Expedition Eddie Bauer 5.4L Poor Idle Quality VIN: 1FMPU18L4X
Customer complaint is engine shakes at idle check engine light on, found codes PO156 B2S2 fault, P1151 B2S1 indicates lean. thought no brainer lean Ford probably PCV elbows, not the case. Fuel trims at idle -12 both banks, bank 1 O2 staying at 0-50, bank 2 swi... Trouble codes: P0156, P1151 (bank 2 sensor 1)
2001 Ford F-150 Lariat 5.4L Pats VIN: 1FTRX18L01
i was testing the vehicle for a parasitic draw and pulled all the fuses found that the GEM Module was causing the 212ma draw now once i installed the fuses back in the vehicle it wont start has code B1600 PATS System transponder signal not received but the veh...
2005 Ford E-450 Super Duty 6.0L Charging system VIN: 1FDXE45P05
I have been pulling my hair on this van and am still looking for the solution. I have had these codes: P0623 Generator Lamp Control Circuit P1148 Generator 2 Control Circuit What I know about this system from other information I have found is that the #2 Al...
2006 Ford F-350 Super Duty XLT 6.0L No Start VIN: 1FTWW31P46
Hi, truck towed in from another shop with no start condition. We did our basic tests. Nothing jumped out as being wrong. we noticed right away we had no injector activity happening when we cycled the key on. Did a injector buss with no response from the inject...
2006 Ford E-250 5.4L MIL Lamp on VIN: 1FTNS24LX6
This truck has absolutely no drivability problems. With the engine light on truck will not pass emissions test. I started repairs with the O2 sensor. After checking the circuits I replaced it with a new Motorcraft sensor. I went on to replace the IAT/MAF with ... Trouble codes: P0113 (IAT Circuit High), P0114 (IAT Circuit Intermittent), P0193 (Fuel Rail Pressure Circuit High), P2195 (Lack of HO2S B1S1 Switch Indicates Lean)
1999 Honda Accord LX 2.3L MIL Lamp on, trans in limp mode VIN: JHMCG5649X
code p1607 only sets when cold and is a hard fault. trans is in limp mode when code is set. after car warms up the code can be cleared and the car runs and shifts normally. all scanner data looks normal. no other codes/complaints/issues. i just wanted to thro... Trouble codes: P1607
1999 Honda Accord LX 2.3L O2 sensor wiring VIN: 1HGCG3269X
I need some help with this accord.i have problems with this O2 sensor heater and I cannot find information anywhere about it.if someone out there knows how to check the ground side on the heater.i believe the system is the same as any O2 sensor but,im not 100%...
1999 Honda CR-V EX 2.0L overheats VIN: JHLR01869X
Overheats dependably w/ A/C on, after about 5 minutes.. Radiator fans come on w/ compressor, but even when overheating, the fans won't continue to run when compressor is off.. Fan operation is erratic at best, I think that there is a coolant circulation issue ...
2002 Honda Civic EX 1.7L No Start VIN: 1HGES26752
Have a no start,Have fuel,spark injector pulse timing is on.Tryed unplugging crank sensor still no start same with cam unplugged.Ran compression 170 across the board.Some times it sputters when key is let off.Will no start.No codes.Any help would be great.Igni...
1999 Isuzu NPR 4.8L glo plug light blink VIN: JALC4B145X
AFter driving approximately 10 minutes the glow plug light begins blinking. I have very little service info, but what I read online ( accurate or not?) indicates that means a code stored in the engine computer. If so, how do I know what is bad? Can I flash a c...
1988 Lincoln Town Car Signature 5.0L vacumm VIN: 1LNBM82F5J
when accelerating loses cold air and switches to defrost and comes back to normal when let off accelerator have checked all vac. lines and check valves I think engine is loosing vac. any one seen similar cases? any info would help thank you.
1996 Mercedes-Benz C220 2.2L Engine VIN: WDBHA22E1T
This car sat for a couple years before we did a head gasket repair. When we finished the car wouldn't start. Has fuel pressure and would start with carb spray, so I know the mechanicals and ignition work. The security system was flashing the lights built into ...
2003 Mercedes-Benz CLK320 3.2L convertable top VIN: WDBLK65G23
This clk is a nightmare and need it to go away. The original complaint from used car lot was windows, blower, for/aft not working on seats and radio inop. Scanned and diagnosed lower control panel module incorrect for car. radio also used and buttons did not ...
1998 Nissan Altima GLE 2.4L Intake Gasket VIN: 1N4DL01D7W
This car came in with intake bolts missing, customer changed intake gasket and could not get all the bolts back in. I have looked at this from above, below, and wheel well and can not figure out how to get to the upper intake bolts. Alldata states that Nissan ...
2000 Pontiac Grand Prix SE 3.1L Harsh shift VIN: 1G2WJ52J3Y
I see flow chart for P0742 TCC stuck? The TFP pressure switch is stuck on? I've tested radiator and its a little too hot. This don't happen till after 40 miles none stop. It just happened and mil comes on and it bangs into gears same on down shift. I didn't sh...
2009 Pontiac G6 2.4L Stall VIN: 1G2ZJ57B39
Hi Car was towed in. Customer stated that they were turning [in a round about] and the car just died. Car starts and dies in 1.5 to 2 seconds. [acts like vtd]. It has good fuel pressure, volume and quality . The only codes in all of the systems were low batter...
1989 Porsche 911 Carrera 3.2L electrical system VIN: WP0AB0915K
Hello,I have this real nice old 1989 911 Carrera,with a draw.With fluke 88 connected and even waiting for 30 to 40 minutes,the draw will fluctuate rapidly between 7 and 14 milliamps nonstop I have removed every fuse one by one in the fusebox,removed and unplu...
2004 Porsche 911 Carrera 3.6L oil leak/compression VIN: WP0CA29964
this car was towed in as a no-start. customer purchased car at auction as a no start and the 4 green plugs at the end of the camshafts missing. all 4 plugs were installed, new battery and we have a no start with no compression. years ago I had similar proble...
2008 Suzuki Forenza 2.0L Stall VIN: KL5JD56Z58
Hello to all. We have this Suzuki that has set a tps correlation code. The data for both sensors are equal always. They are supposed to start at opposite one high going low and one low going high. They are the same. As are the pedal position sensor signals. Ne... Trouble codes: P2135 (Throttle Position TP Sensor 1 - 2 Correlation)
1997 Toyota Tacoma DLX 2.4L Poor Idle Quality, Surge, MIL Lamp on VIN: 4TANL42NXV
Got this 1997 Toyota Tacoma in the shop stated that when he drives check engine light would come on and it would start running ruff scanned for codes and po420 would come up checked for back pressure less than 1 pound. reset light test drove all monitors passe...
2002 Toyota RAV4 2.0L Sets Lean Codes VIN: JTEGH20V72
This RAV4 continues to set lean codes for both banks. Tried a new Denso MAF sensor, no change. Intake gasket and injector seals were replaced account fuel trim would go negative when carb cleaner was sprayed around injectors & upper intake/head area. Smoke che...
2000 Volkswagen Jetta TDI 1.9L chime/gong VIN: 3VWSF29M0Y
dear fellow techs I have this jetta that when it is started the key chime is on as it would be if car was off and key left in ignition. Also if the the lights are on the chime is constant. the chime goes off after a couple miles.No codes found . Locks lights a...
2004 Volkswagen Jetta GLS 1.8L Hesitation, Poor Fuel Economy, MIL Lamp on VIN: 3VWSE69M34
Hi all, I need help on this . This vehicle came in with numerous codes. Although I recently replaced both oxygen sensors, datastream shows there dead. I pulled the connectors and both were filled with oil. I disconnected the connectors from the pcm and its dry...
2004 Volkswagen Jetta GLS 1.8L Stall VIN: 3VWSE69M94
Hi, I've got a 2004 Volkswagen Jetta GLS 1.8t that will stall randomly. The only times I've had it stall for me is when it's sitting here at idle. When it does stall the battery is dead and the vehicle requires a jump but starts back up without any issue. The...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2004 Audi A4 Quattro 1.8L Poor Idle Quality, Surge VIN: WAULC68E04
after all this time I found a problem in the boost feed to the n75 valve. after replacing the hose going from the turbo to the n75 the problem no longer existed. this took care of the boost issues. found that the cam chain was stretched(came with the head fro... Trouble codes: 16795 (seconday air injection system incorrect flow detected), 16396 (bank 1 - camshaft Aintake advanced set point not reached over retarded).
2002 BMW 330i 3.0L Unknown VIN: WBAEV534X2
I wanted to wait long enough to see if it actually continued to run well and so far it has. We replaced the exhaust cam sensor and the codes stayed away. We too have seen this happen in sub freezing weather but not 95 degf,I hope this post helps others avoid t...
2001 Buick Park Avenue 3.8L Key FOB INOP VIN: 1G4CW54K11
We found one of the new fobs where bad. We tried to program with our snap on scanner ended up have to take to dealer to have programmed. All Is Well
2006 Buick Rendezvous CXL 3.6L Right Rear wheel sensor VIN: 3G5DB03776
Well this vehicle left our shop not fixed.Recieved some information about rechecking our work and rechecking our work on the connector we put in.I took it back apart and rechecked every wire in there again.Every wire was good and in its proper place.After talk...
2000 Chevrolet Camaro Z28 5.7L Axle Seal VIN: 2G1FP32G7Y
thanks for the help after cleaning off i filled the tube up with gear oil and found the leak was from the axle tube and the metal outer ring of the seal.
2008 Chevrolet Silverado 2500 HD WT 6.0L ride VIN: 1GCHC29K58
Thanks for your help. The replies were all in agreement that the tires were the issue. I had the tire guys put 4 kelly tires on (they are the correct size for this truck as were the ones we just took off) & went & drove it. It seemed better but still did not ...
2002 Dodge Stratus R/T 3.0L ac compressor VIN: 4B3AG52H72
The a/c was fully charged the problem was the throttle plates were dirty cleaned them and fixed it the idle was to low so the computer was shutting the compressor off to keep it from stalling thanks guys
2000 Ford Focus LX 2.0L lifter rattle VIN: 1FAFP33P4Y
Thanks for all your help .I removed valve cover and cranked over engine ,it had a huge amount of oil drainback on passenger side of head and hardly none on drivers side, I have a different head coming as this rebuilt head is obviously cracked at oil delivery ...
2003 Ford Taurus LX 3.0L cooling fans VIN: 1FAFP55283
thank you all for the replies,after reading them I decided to bring the car up front and check it myself(had my guys check it the first time).The fans would come on for the koeo scan so I decided to let it sit and run and get hot,the fans would come on at 219 ...
2005 Ford F-250 Super Duty King Ranch 6.0L MIL Lamp on VIN: 1FTSW21P85
thank you Doug and Timothy it was a programing issue. got as built data from motorcraft and reprogrammed. all is good. Trouble codes: P0606, P1102, P1635.
2007 Ford Explorer XLT 4.0L convertor VIN: 1FMEU73E17
sorry for the delay, this one is fixed. pulled the transmission back down and found the teflon seal at the end of the stator support was missing. i would like to thank all that responded. you all nailed it. if you don't know it's there you dont know it's missi...
2007 Ford Edge SEL 3.5L Misfire VIN: 2FMDK49C67
Have ordered new PCM and coils per TSB waiting on parts, already installed the new plugs, took customer awhile to decide to spend big money. Thanks for the help Trouble codes: P0300, P0301, P0302, P0351, P0352, P0354.
2012 Ford F-150 STX 3.7L No Start VIN: 1FTMF1CM4C
Thanks for all the replies. I had already verified the correct part number. It would not allow me to do a perimeter reset so I got to thinking it was unusual to replace the pcm for a charging issue. I asked the other shop what the original issue was and they s...
2006 GMC Sierra 1500 WT 5.3L engine VIN: 2GTEK19B56
initial problem fans come on with engine off kills battery. charged battery start engine cut ac on shuts down engine in 10 seconds Freon amount good compressor not locked up engine will run with ac on but with belt off. Solved: diagnosed bad pcm, replaced and...
2003 Hyundai Sonata GLS 2.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: KMHWF35H93
We made the mistake of not checking the basics first as this vehicle ran just fine the week before when it came in for A/C service. But codes for both banks and freeze frame and live data indicated a severe lean fuel delivery problem as well as missing which l... Trouble codes: P0166 (lambda B1 control limit), P1167 (lanbda B2 control limit), P0301 (Cyl 1 misfire), P0302 (Cyl 2 misfire), P0303 (Cyl 3 misfire), P0304 (Cyl 4 misfire).
2000 Jaguar XK8 4.0L Engine VIN: SAJJA41C5Y
The vehicle is fixed. 4 of the 5 replies concurred that the brake light switch was the cause of the "Failsafe Engine Mode" warning light. I have just checked in with the customer who said that there have been no more phantom script appearances since the switch...
2006 Lexus SC430 4.3L Battery VIN: JTHFN48Y76
Turns out I had a weak cell in the battery that would test bad at times.Thanks for all the help.I did all the testing that was suggested by you guys & the strange thing is this battery was tested by the store where they bought it & I tested it the first thing ...
1999 Pontiac Firebird Formula 5.7L Speed Sensor VIN: 2G2FV22G8X
Well I checked for A.C. voltage at the EBCM. I did have voltage all the way to the EBCM connector. Took a gamble and sent the EBCM to a re-man outfit. They repaired the EBCM and all is well. Thanks again for your time and input.
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