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Prev Professional Automotive Repair Technical Discussions for May 6, 2013
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1998 BMW 740iL 4.4L blower motor VIN: WBAGJ8323W
The front blower on this bmw will come on for 10 seconds or so when you select ac or heat and then shuts down,after several seconds will come on again for several seconds.i scanned for codes but my solus does not give bmw hvac leaning towards the blow...
2007 BMW 335i 3.0L dash VIN: WBABB73597
Help BMW techs This car will turn on all the dash lights ABS Air Bag Engine Brake Tires pressure mon and spedo quits also and the wipers turn on by them self. The car will fix its self when hitting a speed bump semi hard I think more so from the rear. It had a...
1995 Buick Park Avenue 3.8L engine missfire VIN: 1G4CW52K6S
after look at car recommended replace fuel filter and PCV and clean very dirty MAF car started rough then smoothed out took out for test drive stumbled on take off then suddenly ran great returned car to customer 2 hours later customer call and said the car do...
1991 Chevrolet Camaro RS 3.1L No Start, Stall, MIL Lamp on VIN: 1G1FP33T9M
Tow in-- Camaro usually starts but will not rev up. Usually no service engine soon light or security light flashing. Scan for codes right off trailer--no codes, Scan data don't see anything out of normal. Suspect fuel pump. Install MAC pressure checker find in... Trouble codes: 46 (Vehicle security system)
1996 Chevrolet S10 2.2L Cyl #4 VIN: 1GCCS1941T
Checked all 4 cyl with timing light. Cyl 1, 2, 3 have double spark output. Cyl 4 has only waste spark firing Could this be the module or ECU? It seems the coil is fine since 2 is firing correctly. Any input. Thanks
2003 Chevrolet Venture LS 3.4L MIL Lamp on VIN: 1GNDX03E93
hi folks. i have this 03 venture that is driving me nuts. its setting a p1374 code everytime you crank it and let it run for about 10 seconds. Normally for me the cause of this code is a cracked ignition coil causing an issue with the ignition module. in this ... Trouble codes: P1374
2004 Chrysler PT Cruiser Limited 2.4L cam and crank sensors correlation VIN: 3C8FY68B74
Hi Guys I have this car refferd to me after some other shop mingled with it and could not make it drive able. when i drive the car it seems like as if u turn the key of. It does not shut down. If i take my foot of the accelerator it will run. just cannot push ...
1997 Dodge Grand Caravan ES 3.8L Cooling Fans VIN: 1B4GP54L2V
ok I don't know anything about solid state relays we have replaced them 3 times in 2 years. van was drove about 30 miles outside temp was in the low 70s and overheated like 3 times before we would replace the relay and fans would run engine would stay cool but...
2003 Dodge Grand Caravan SE 3.3L power steering VIN: 1D4GP24R73
Vehicle came in with very poor p/s and a leaking rack. Emptied system and added conditioner and stop leak. Now no steering at all. Replaced p/s pump and still no steering. Did find that the hose that goes from the resivior to the return side of the pump will c...
2010 Dodge Avenger SXT 2.4L No Start VIN: 1B3CC4FB0A
The starter will not activate, There is no communication with the scan tool. It seems like the TIPM is the problem with the no communication. I think there is supposed to be about 2.5v on pin 6 & 14 of the aldl connector, indicating that there is TIPM action. ...
1989 Ford F-150 Custom 5.0L No Start, Poor Idle Quality, Stall, Misfire VIN: 1FTEF14N0K
FARM truck, Will not idle and if it does i have to have foot on pedal which it's impossible to test, i'm all alone, i turned distributor a quarter turn and got it to idle for about 5 minutes Cats where RED hot from the misfire, i did drill a half inch hole to ...
1996 Ford F-350 Eddie Bauer 7.3L No Start VIN: 1FTJX35F4T
hello everyone thanks for any help in advance, not too familiar with diesels but here goes. I am getting a code p0344 but I have a good rpm signal. I started off only getting about 5 psi fuel pressure, I replaced transfer pump in valley and fuel filter housing... Trouble codes: P0344
1999 Ford Contour LX 2.5L anti-theft, key programming VIN: 1FAFP66L2X
I have a dilemma here gentlemen. I have this lovely Contour here that came in because the customer was having a lot of problems with the lock cylinder/key. It was old and getting worn out, and they had to pound the key in there with their hand almost every tim...
2003 Ford F-250 Super Duty Lariat 5.4L Accessory delay relay VIN: 1FTNX21L93
This truck has a battery drain. Whats happening is the radio is coming on intermittently when the key is off. The accessory delay is being energized which in turn is powering up the radio (and power windows). The reason the accessory delay relay is being power...
2004 Ford Freestar SEL 4.2L MIL Lamp on VIN: 2FMDA52294
Fuel Rail Pressure Temperature (FRPT) sensor or PCM? No driveability symptoms other than MIL on. Diagnostic troubleshooting tree for P0193 has left me somewhat unsure. The FRPT sensor vacuum line doesn't have any fuel in it, and there are no other leaks either... Trouble codes: P0193 (Fuel Rail Pressure A Circuit High Input)
2004 Ford F-150 XLT 4.6L compressor clutch VIN: 1FTRW12W14
One for you FOMOCO guys. Got this '04 F-150 4.6 that the a/c clutch will not engage. The PCM is not seeing the a/c request. On this vehicle the manual a/c control head grounds a 12v reference signal to the IPC and the IPC relays the request via bus line to the...
2007 Ford F-250 Super Duty XLT 6.8L Misfire, MIL Lamp on VIN: 1FTSW21Y47
Customer came in with a P0300, but never had any misfire symptom. We replaced all 10 plugs and coils (carquest) coils and after driving it for a day the P0300 comes back. Weve never seen a misfire, just fighting a light. We have heard a bad cam sensor can caus... Trouble codes: P0300 (Multiple Cylinder Misfire)
2002 GMC Envoy SLE 4.2L Misfire VIN: 1GKDT13SX2
Hi all and thanks in advance.Vehicle came in with a cyl 2 misfire and I replaced the coil.It was gone for a day and returned with same code.Insted of replacing coil again,I switched #2 and #3 coils and it still throws a #2 misfire at idle only.I have no scope ... Trouble codes: P0302 (Cylinder 2 misfire)
2003 GMC Sierra 1500 SLE 4.8L dead battery VIN: 1GTGC13U23
hello to all the techs out there. this vehicle would have a dead battery after sitting overnite, but was erratic as to when it would occur.this went on for a couple weeks when it was brought to me. customer was diligent about making sure nothing was left on. v...
1989 Honda Accord LXi 2.0L Excessive Emissions VIN: 1HGCA6281K
This vehicle stays in close loop for only about 30 seconds under ASM. During the first 30 seconds, the EGR valve opens to about 2.2 volt (EGR position sensor) while both O2 sensors appears to be in fuel control (cycles up and down). However, after 30 seconds, ...
2001 Infiniti I30 3.0L No Start VIN: JNKCA31A31
We found a used ECU for this car with the same part number and without a burned up circuit board. (There is a related post on that from a month ago.) We sent it off to be repaired because it would not ground the ECU relay, turn on the CEL or communicate with a...
2003 Kia Sorento EX 3.5L engine VIN: KNDJC73333
Well here I go getting myself into another after hours project, I just bought this Kia from a customer because of a loud tapping noise in engine, they didn't want to pay to diagnose the problem. My first thought was that a rod bearing was worn out and piston w...
2000 Lincoln LS 3.9L engine VIN: 1LNHM87A9Y
I got a 2000 lincoln LS thats making a loud tapping noise from under the intake.( Thanks in advance for the help)Customer called me from a gas station with a loud noise. When I got there it sounded like a timing chain guide went bad. Had vehicle towed, scanned...
2006 Mazda 3 S 2.3L No Start VIN: JM1BK34376
This was a tow in it will start for 1-2 seconds when noid light is bright when it starts for the two seconds. It does not loose spark and will run with starting fluid. The noid light goes very dim even when running on fluid and when it dies. If I hold the key ...
1996 Mercedes-Benz SL500 5.0L convetible top VIN: WDBFA67F8T
Hello Benz tech's, I have this 96 SL 500 with the top Inoperative. The owner try to open it and it started to work to the point till were the windows went down and the front and rear latches opened, and that was it.There where lots of codes stored. I clear the...
2000 Nissan Sentra GXE 1.8L No Start, Stall, MIL Lamp on VIN: 3N1CB51D7Y
hello everyone. I have this nissan in the shop towed in no start died while driving. checked and found no spark or injector pulse. checked for codes and found code p0340 cmp sensor. replaced can sensor and still no start. replaced crank sensor also both with o... Trouble codes: P0335
2004 Nissan 350Z Touring 3.5L window motor VIN: JN1AZ36AX4
Thanks in advance for your review!!! With limited alldata information on wiring & diagnostics, with limited foreign scan tool data I am coming to the conclusion of the switch or electronic control issue. There is power & ground to the RF window switch (black &...
1999 Pontiac Sunfire SE 2.2L Drl
Help!! Drl does not work, headlight high and low beams all work normally and the high beam indicator is ALLWAYS on. If I ground circuit 592 at the relay with the relay in, the drl will work, however if I ground the signal wire at the instrument cluster they wi...
2002 Porsche 911 Carrera 3.6L Misfire VIN: WP0CA29962
This car was towed in for a no start; engine would crank normally but not start with no stored codes. Customer stated that car began to misfire while driving home and when he attempted to start it the following morning the engine would crank but not start. Aft... Trouble codes: P0303 (Misfire cylinder 3)
2005 Scion tC (Car) 2.4L Poor Idle Quality, Misfire VIN: JTKDE17795
Hey guys, I feel like this one's staring me in the face and I just can't get it. It has a random miss at idle that affects all cylinders and the kicker is it goes away and PURRS when I add 20% injector volume on my scanner. Lean miss, right? No specific cylind... Trouble codes: P0300 (p0301-), P0301 (p0302-), P0302 (p0303-), P0303 (p0304-), P0304
2008 Subaru Outback 2.5i 2.5L Compressor VIN: 4S4BP60C98
The compressor cycles on and off too quick
2004 Toyota Camry LE 2.4L MIL Lamp on, No Communication
This vehicle comes from another shop, came to me with the whole interior torn apart. the vehicle runs great, battery light is on but alternator voltage is 14volts. and check engine light is on, but no communication to pcm or any other modules. I haven't had mu...
2003 Volkswagen Beetle GLS 2.0L j677 relay VIN: 3VWCK21433
Hi, techs! I am having trouble diagnosing an inop fuel door on this bug. no voltage coming over from relay j677 to pin 4 blue/red wire at switch in drivers door panel. 11 volts at pin 3, looks like that goes to central module? Any advice? Also, where ...
2006 Volkswagen Jetta TDI 1.9L no power VIN: 3VWST71K66
Car came in smoking no power all kinds of noise. If we got the car hot enough it would run great but if we let it cool down then we had no power eventually the exhaust blade froze to were they would not move. Replaced the egr cooler because it was leaking, rep...
1992 Volvo 960 2.9L Electronic VIN: YV1KW9507N
Transmission is in limp mode as far as I can tell. Lights on mode switch in console are flashing as is the arrow on the cluster. Speedometer is not working as well which I believe is the actual problem. I would like confirmation that I am barking up the corr...
2002 Volvo S60 2.4L Ecm VIN: YV1RS61R42
I called volvo they want way too much money and not helpful Just greedy First I brought a used ecm from ebay Next I tried a ecm repair company (won't list there name) to reset the immobilizer on the used ecm they said they could do it Needless to say they did...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 Audi A4 1.8L No Start VIN: WAUDC68D01
Thanks to all who replied. It appears even though this vehicle didn't have the theft system, my scanner did not have the ability to code the replacement computer so I sent them to a local european shop. Thanks again, Allen
2006 BMW X3 3.0i 3.0L Hesitation, Surge VIN: WBXPA93436
Thanks for all the help. We haven't fixed the car yet but what we found was the fuel pressure, while the surge is occurring, is fluctuating 5-10psi below spec. Changed fuel filter first with little change. Next step is fuel pump. This x3 doesn't have a fuel pu...
2005 Chevrolet Avalanche 1500 5.3L Hesitation VIN: 3GNEC12TX5
Customer has had the truck back for 2 weeks now with no issues so i am going to call this one a fix. I just wish I could say exactly what we did to fix it. We ended up checking and cleaning every connector and ground we could find .We also disconnected the rem...
2007 Chrysler Sebring 2.4L Transmission VIN: 1C3LC46K57
After closely looking at voltage during key on and not finding issues. I replaced pcm and code gone. Driver in pcm was bad.
2008 Chrysler Town & Country (Van) Touring 3.8L Lights VIN: 2A8HR54P38
I have tried all three of my scan tools and non get into front module. I will update when I get my hands on factory scan tool. Thanks for all your help.
2001 Dodge Caravan SE 3.3L Hesitation, Surge, Cuts out, Stall VIN: 1B4GP25311
the beast is fixed. ended up replacing EGR valve assy. men this really got me pulling my hair.
1996 Ford Explorer Sport 4.0L rack & pinion VIN: 1FMCU24X1T
Thanks for all the input. Super appriciated. At first glance I wasn't sure if the inner tierods came out. This was my first rack n pinion. Had to cut the boots on the old one and remove all the lines but it came out. Thanks again to all that replied..
1996 Ford Escort LX 1.9L Seat Belt - LF VIN: 3FASP11J3T
We installed a good used assembly we acquired through E-bay. Thanks for the many responses. As they noted, good sources for used parts are often: LKQ; Green Motor Sales (obsolete Ford Parts) [...];; and ebay.
2008 Ford Focus S 2.0L Poor Idle Quality, MIL Lamp on VIN: 1FAHP34N38
Thank you all for the helpful replies!! Looks like i overlooked the simple.. I traced the problem back to a corroded ground wire on the drivers strut tower. Seems that this is a shared ground with the ecm and a few other items which would cause the issue I ... Trouble codes: P0171 (Bank 1 Lean).
2006 Hyundai Tucson GLS 2.7L Hesitation, Surge, Poor Fuel Economy VIN: KM8JN12D76
Sorry for the delay, we finally got the vehicle back to finish the repair. It turned out to be a no code MAF sensor that was causing the vehicle to run just a little bit to lean. We had tried to clean it, but that wasnt good enough so we went ahead and replace... Trouble codes: P0171 (Lean Bank one), P0174 (Lean Bank two).
2000 Jaguar Vanden Plas 4.0L transmission VIN: SAJDA24C9Y
Sorry for the delay but a used trans controller fixed this jag.The origional controller was sent out for testing and no problems were found.That incorrect info really cost me alot of hours.Used controller was $50 and no programming necessary.Yes,plug and play ...
1993 Jeep Cherokee Country 4.0L Excessive Emissions VIN: 1J4FT78S4P
Thanks for everyone's help and input on this jeep. I had two jeeps came in with a 4.0L and compared them.. Fuel pressure was 2 psi off on mine. More 02 sensor cross counts, but still they are also bias from about .5 to .7 volts. Wanted to try a factory one...
2006 Nissan Pathfinder SE 4.0L MIL Lamp on VIN: 5N1AR18U36
thankx everyone for helping out, the problem was a loose conection on the evap volume solenoid(canister purge volume solenoid)whats weird is that it gave us the po448 and not po445.but it is fixed.thanks!! Trouble codes: P0448.
2007 Nissan Maxima SL 3.5L No Start VIN: 1N4BA41E27
Sorry for the late delayed closure. Changed the NATS antenna (attatched to the steering colulm), dialed in the code all you guys were so kind to provide me, and it was good to go. Thanks again to all Trouble codes: P1610 (p1614-), P1614.
2007 Nissan Maxima SL 3.5L Hesitation, Surge, Cuts out VIN: 1N4BA41E87
What it turned out to be was the ABS system There is a tsb on the abs causing drivablity problems on these drive by wire and cvt transmissions 2007-2012. NTB11-089 date issue, September 26, 2011. What I did was disconect the ABS module and when I test drove th...
1998 Subaru Legacy Outback 2.5L shift VIN: 4S3BG6851W
yes I think the problem was created by me when I installed the used motor however I have not had the time or available space to drop the pan and see. thank you everyone for your replies.
1999 Toyota Camry LE 2.2L Stall, MIL Lamp on
Well thank all that replied,after testing,retesting,checking vacuum hose routing and rechecking,testing ETC,TPS and Vss with noid light,and scope,cleaning all passages,thoddle body include,could not get code to reset on countless test drives.I'm left with to g... Trouble codes: P0401.
2003 Toyota Camry LE 3.0L MIL Lamp on VIN: 4T1BF30K23
Thanks to all who replied, I appreciate your efforts!!! A special thanks goes to Thomas of North Carolina, who nailed it perfectly. The "tech" who did the spark plugs failed to tighten the ground wire hidden behind the center of the plenum. Thanks again to a... Trouble codes: P0032, P0052.
2003 Volkswagen Passat W8 4.0L Low Beam VIN: WVWUK63B13
Well we did not fix this one. Thank you to all that replied. I covered all that was suggested to no avail. Without swapping parts and pulling the bumper on and off a dozen time I just could not spend the time at this point. They will bring it back for two week...
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