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Prev Professional Automotive Repair Technical Discussions for June 12, 2014
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Open Help Requests for All Makes and Models
Help Request Answers
2007 BMW 335i 3.0L Accessories VIN: WBAWB73537
I have this 2007 BMW 335i with the navigation system not working nor the radio, the screen is out or dead. I already checked all the fuses for the radio and navigation system all checked good. Before pulling the navigation screen out or the radio. Is this a de...
1996 Buick Riviera 3.8L Abs/Clust./Audio VIN: 1G4GD2212T
Thanks for your time in advance. I have this buick rivera with abs light on intermittently and now steady. When i try to communicate with abs, there is no communication. It also wont communicate with hvac programmer or the instrument cluster. These three modul...
2008 Cadillac DTS 4.6L fuel pump relay VIN: 1G6KD57Y78
We have had this car in several times for fuel pump relay burning up. tested fuel pressure and draw looked ok but replaced pump anyway after coming back second time. tested all wiring for pump and found nothing with high resistance. When testing power at fuse ...
1994 Chevrolet Corvette 5.7L No Start VIN: 1G1YY22P9R
opti-spark people - vette arrived no start/no spark - scope high and low dist. signal , no signal. replace dist. w/ o.e. dealer. car leaves - comes back after stalling once but restarted fine. started fine at shop / ran fine on test drive. put scope back on hi...
1999 Chevrolet C1500 Suburban 5.7L No Start VIN: 3GNEC16R2X
History Bought truck from friend and ran ok for a few weeks and after a long trip (2 hrs) driving at low speed truck stalls, on road. At first check there is no spark, so i tow home and start to see whats up and truck starts momentarily idling extremely rough...
2001 Chevrolet Express 3500 5.7L abs module VIN: 1GAHG39R41
van came in with brakes super sensitive,replaced abs module with used one and it will still throw you thru the windshield. any ideas what could be causing this
2001 Chevrolet Silverado 1500 5.3L left front speed VIN: 1GCEK19T71
truck came in with no communaction to abs module replaced the abs module. now have left front speed sensor erratic or front wheel speed sensor fault code . can someone point me in right direction please
2003 Chevrolet Silverado 1500 4.8L engine VIN: 1GCEC19V03
Customer had misfire codes and took vehicle home and changed his spark plugs. He also had codes for the throttle body which is a common problem on this vehicle. He returned to the shop to allow us to change his throttle body due to the fact of the reduced engi...
2007 Chevrolet Tahoe LTZ 5.3L Stall VIN: 1GNFK13047
I just recently replaced the two front struts on this vehicle and customer is complaining that in a hard left turn the vehicles stability track light is coming on and the vehicle stalls out. when driving straight the vehicle runs perfect and when making slight...
2007 Chevrolet Uplander 3.9L Air Bag System VIN: 1GBDV13127
Vehicle came in with a code b0041 left front side air bag module circuit open. Tested wiring from module to harness side of side air bag connector. Both wires tested good . Do not have a dummy air bag to plug in to test but found on Identifix techs were saying...
2008 Chevrolet Silverado 2500 HD WT 6.0L Brake Lights VIN: 1GCHK29K08
Brake lights would not shut off, switch was replaced, no fix. Tested system & determined bcm at fault, replaced & programmed bcm, no fix. Gm dealer programmed bcm, no fix. Gm dealer tested & diagnosed to failed underhood fuse/relay center, replaced fuse/relay ...
2006 Chrysler PT Cruiser Touring 2.4L Engine Missfire VIN: 3A4FY58B86
what a fine pt except for this the #1 injector misfire. with the resistance of the noid light in parallel the thing runs fine and with a used pcm we have the same symptoms. can anyone explain the lowered resistance adding fuel? im having him do a running compr...
2008 Dodge Grand Caravan SXT 3.8L shifting VIN: 1D8HN54PX8
replaced with a used unit , did the proper fluid chart setting , cleared codes and test drove tranny never tried to shift at all , we are getting a p0731 code , it was also there before replacement , we appear to have speed sensor signal we see rpm , and speed...
1988 Ford F-150 Custom 5.0L Excessive Emissions, No Start, Poor Idle Quality, Stall VIN: 1FTEF14N8J
I have this fuel injected 5.0l 1988 F-150 that will just barely run. It acts like the timing is way too slow, but if I can make it run well enough to check timing, it appears to be right on 10 BTDC, and the computer will advance it when I plug the SPOUT connec... Trouble codes: 85 (adaptive fuel made leaner)
2001 Ford Ranger Edge 3.0L Mechanical VIN: 1FTYR10V61
auto came in running rough. has a lot of miles on it. it fgvery well taken care of. had misfire on #5 cly. did a tune up plus and wires. now has misfire on 4and6. has code p1101. mass air flow problem. pulled upper intake check fuel injectors. all ohm. out fin...
2002 Ford F-150 King Ranch 5.4L engine VIN: 1FTRW07L02
no power under load or drive no power cant move new feul pump ,filter ,maf,fresh gas.
2003 Ford Focus SE 2.3L brake system
Ford guys, have this focus that is really getting under my skin. Customer came in about 3 months ago with complaint of brake noise. Full brake inspection found 50% friction material left on the front pads with no pulsation and perfectly even wear. Rear shoes c...
2013 Ford F-150 FX2 3.5L Airbag VIN: 1FTFW1CT5D
Vehicle was sent from a body shop after a front end collision with a driver airbag deployment. They replaced the parts listed and sent it to us for programming. Came in with codes a few codes, but after clearng them and attemping to program RCM with IDS, these...
1995 Honda Accord LX 2.2L No fuel injector pulse VIN: JHMCD5631S
Replaced distributor,Put crank pulley at TDC and checked alignment at cam pulley.Right on the marks.All imputs good[CKP, TDC,CYP]. Just no injector pulse. Pulse stays to ground. Could this be anything but a failed ECM. I just find it wierd for four drivers to ...
2001 Jaguar XK8 4.0L roof VIN: SAJFA42C61
Have confirmed the hydraulic line to roof latch have failed, have never changed the lines before-hoping for some information of procedure and also approx time to quote the client. thanks in advance Brian
1998 Jeep Cherokee Classic 4.0L No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1J4FJ68S4W
This one has us stummped,have installed 2 used computers and a new distributor and 2 crank sensors, however vehicle still has a missfire, hesitation. Code p1391 (intermittent loss of cam or crank signal). Wiring harness apears to be good and have performed wig... Trouble codes: P1391
2003 Kia Optima SE 2.7L Misfire, MIL Lamp on VIN: KNAGD12813
I am really sick of this car. customer has been complaining of poor running, check engine light on. This car would come in with the hose in front of the MAF disconnected so we checked the motor mounts they were toast we replaced the mounts then still had misfi... Trouble codes: P0301 (Misfire all cylinders), P0302 (p0303-), P0303 (p0304-), P0304 (p0305-), P0305 (p0306-), P0306
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-...
2009 Mercedes-Benz E63 AMG 6.3L airmatic VIN: WDBUF77X89
vehicle came in with inop air suspension and malfunction light on. Applied 12v straight to pump, no good. Replaced. Also replaced airmatic relay. Still inop. Not getting a signal to pump through relay. I have a wiring diagram from an s430 with airmatic suspens...
1997 Mercury Tracer LS 2.0L Engine Vibration VIN: 3MELM15P6V
After the tune up service and timing belt the customer complained of a vibration felt during idle, vehicle not moving. The car has a noticeable vibration thru the body that can be felt at idle speed. There do not appear to be any other drivability issues. The ...
1985 Other European Centauri (Fuego) 2.2L Unknown VIN: 1WWBB15M8F
Customer had this camper towed in for no start and 2 melted wires. The wires go to an underhood light located behind the overflow bottle (at leastt thats where the customer said theyy went) and I don't believe they have anything to do with the no start. It has...
2001 Pontiac Aztek 3.4L fuel gauge VIN: 3G7DA03E71
came in with crazy fuel gauge ( goes from full to empty to middel and any where in between). did my diag via alldata to step 6 where it tells me to check from connecter 305c to the fuel gauge sender connecter checked contnutiy and for an open and its good then...
1999 Porsche 911 Carrera 3.4L MIL Lamp on VIN: WP0AA2992X
for the past 2 years this customer has had an intermittent check engine light. the codes now present are (P0452 TANK PRESSURE SENSOR and P0446 EVAPORATIVE CANISTER SHUTOFF VALVE) he has replaced a number of parts over the years including the charcoal canister,... Trouble codes: P0452, P0446
2004 Saab 9-5 Aero 2.3L MIL Lamp on VIN: YS3EH59G54
We have this 9-5 in the shop that will set the listed codes and go into limp mode intermittently. When it first came in for this problem,(9/2012), it was diagnosed as needing a throttle body which was not unusual for these cars, we keep them in stock from a re... Trouble codes: P1530 (Pedal Position Sensor 1 2 Sum out of range), P1231 (Throttle Position Sensor 1 2 Sum out of range)
2004 Subaru Forester X 2.5L No Start, MIL Lamp on VIN: JF1SG63644
Good evening all, and thanks for taking time to read this for us. we are STUMPED! car was brought to us for head gaskets leaking oil and coolant. it ran beautiful. no codes etc... i removed the heads and had them sent to the machine shop we use for all this st... Trouble codes: P0336 (Crankshaft position sensor a range/performance)
2010 Subaru Legacy 2.5i 2.5L evap temp VIN: 4S3BMBB64A
customer complained of no cold Came in with out freon. Service valves leaked so we changed. It worked fine till the next warm day. We brought it back in pulled freon out, it had a full charge. Recharged it and took it for a drive cooled Real good for the first...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1996 Audi A6 Quattro 2.8L RPM flare in "D" VIN: WAUJC84A4T
The vehicle owner has decided not to fix this vehicle but here is what I found. Eriksson Industries in CT was very helpful in diagnosing this vehicle (thanks to Yuval). There is a freewheeler (or one way clutch) located at the very rear of the trans that is ...
2005 Cadillac CTS 3.6L MIL Lamp on VIN: 1G6DP56755
the presure sensor is reading vacum when presure is applied i recomended the the evap canister presure sensor and vent valve as one assembly the customer declined any repairs trading car in thank u for the advise will be helpful for next time also when i was ... Trouble codes: P0445.
1987 Chevrolet Corvette 5.7L blower VIN: 1G1YY2187H
thanks to Robert and ken from texas for their wireing information the problem was in the ctsy/clock circuit that ken had on his information .moisture and grime kept the fuse from making contact in the panel ,every wireing diagram I could get was limited and di...
2001 Chevrolet C7500 Kodiak C7H042 7.2L Cuts out VIN: 1GBJ7H1C61
been waiting to last minuet to close this post to see if my problem child was coming back . I normally pull sending unit and hook a electric fuel pump to pick up to check for cracked fuel lines etc. This did not work on the o-ring type push on-lines on this tr...
2007 Chevrolet HHR LT 2.2L MIL Lamp on VIN: 3GNDA23D87
Thanks for all your help.Had a Bad new ECM,replaced it and everything working O.k. now. Trouble codes: P062F, P062F.
2007 Chrysler Sebring Touring 2.7L Pedal VIN: 1C3LC56R27
2009 Dodge Grand Caravan SE 3.3L power liftgate VIN: 1D8HN44E29
After repairing corroded wire rechecked circuit and found liftgate module was grounding Q51 liftgate full open sense. Replaced module liftgate now operating correctly.
2004 Ford Expedition XLT 5.4L no start VIN: 1FMPU16L64
so i unplugged a few modules and found the security module was the culprit of the communication loss. thats why the horn was always going off and the horn fuse was blown. i got a used security module and pcm. had a mobile programmer come out and try and progra...
2009 Infiniti G37 X 3.7L No Start VIN: JNKCV61F69
Thanks to Dave for all his input. Found multiple problems, starting with timing chain worn and off a tooth, then found rear timing cover gasket broken leaking down oil pressure. After repairing these problems we discovered bank one cam phaser sprocket was faul... Trouble codes: P0340 (Cam Position Sensor Bank One).
2012 Kia Sorento LX 3.5L generator VIN: 5XYKT4A20C
removed b oth egine mounts and jacked up engine and generator slid out right above frame, a/c issue was broken wire in a/c wiring harness to a/c compressor connector, repined connecter and low side pressure switch not seated correctly, a/c working properly, th...
2004 Mazda 3 S 2.3L No Start VIN: JM1BK14314
Had to go through parameter reset program two keys and reprogram everything twice and then the car started with the used pcm. thanks for everyone's help. Trouble codes: P1260, B2139, U2023, U0121.
2001 Mercedes-Benz S600 5.8L Misfire VIN: WDBNG78JX1
this car has 4 o2 sensors 2 per bank , and 1 sensor is for cylinders # 10 11 and 12, and this o2 sensor wasn't working properly, causing a lean misfire, new o2 sensor did the trick Trouble codes: P205, P0258, P005A.
2005 Mercedes-Benz C230 Kompressor 1.8L Surge VIN: WDBRF40J15
I replaced the Maf sensor. Someone had installed an aftermarket one and the range just was not quite right. Thank you for everyone who responded.
2006 Mercedes-Benz E350 4Matic 3.5L Hesitation, Misfire, MIL Lamp on VIN: WDBUF87J36
First off I want to thank Sean for his advice. I always knew to check for the "circles" in the cam sensor holes but was not aware of the "a" and "e" markings. We were able to get this one in this morning and checked the markings which were ok. After pulling... Trouble codes: P0022, P0024, P0019, P0018, P0304, P0305.
2008 Mercedes-Benz SL550 5.5L trunk lid VIN: WDBSK71F48
2005 Nissan Altima S 2.5L Stall VIN: 1N4AL11D15
After noticing that transmmision fluid was comming out from inside the transmission while running, customer decided to replace it and that took care of the problem. Thanks for your replies some of them were very helpful.
2006 Nissan Sentra S 1.8L no MIL light VIN: 3N1CB51D26
Thanks to the 3 members that responded. The fix was a replacement of the instrument cluster. There was no place for a mil test on my scanner, the bulb was an led. and I tried to create a code which it did, but still no mil. I replaced the cluster and all is w...
2007 Nissan Maxima SL 3.5L not shifting VIN: 1N4BA41E97
sorry for the delay. the customer decided to wholesale the car.the high rpm was normal. the boss did not realize this is how cvt are when accelerating.the problem that was left was the loss of power at times.we were suspecting a wheel speed sensor problem but ...
1994 Subaru Legacy L 2.2L Misfire VIN: 4S4BJ63C6R
High idle that the PCM can not bring down will cause it to turn off the front 2 fuel injectors to control the idle. I pinched the hose going into the Air Control, engine speed dropped. Air Control gets battery voltage from the main relay, goes through an open ... Trouble codes: 24 (Bypass Air Control Valve), 35 (Canister Purge Solenoid).
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