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Prev Professional Automotive Repair Technical Discussions for December 3, 2012
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Open Help Requests for All Makes and Models
Help Request Answers
1987 Alfa Romeo Spider Quadrifoglio 2.0L Air Conditioner VIN: ZARBA5567H
The air coditioner does not have a belt on it.i can't see anyway to install this belt.the ac compressor does not pivot,there is no tensioner pulley,there is no way to install a belt and to tighten it after.it seems the only way to get a belt on it is to remove...
1999 BMW 740iL 4.4L MIL Lamp on
Keeps throwing lean condition both banks. God I hate bmws.
2002 BMW 325i 2.5L No Start VIN: WBAEV33442
Got a strange one here guys. This piece of junk came in on the hooks a few days ago with a no start condition. Under inspection I found it had no fuel pressure, so I pulled up the back seat and checked power at the pump since it was easy. Had a good 12v power ... Trouble codes: P0455
2002 BMW 745i 4.4L Airbag VIN: WBAGL63492
Pulled the following codes.93db ht section fault. 93df low voltage detected. And 98e1 trminal 15 not plausibe. I can't find any info to change the codes to regular codes. I have a modis and a bosch scan tool. Also is this something that can be diagnosed with t...
2004 BMW X5 4.4i 4.4L Poor Idle Quality, Hesitation, Misfire VIN: 5UXFB53554
Ok here we go. fist came in with #5 misfire replaced plugs NGK correct for n62. no change,moved coils no change, moved injectors no change. Did injector flush no change. Checked compression 180psi all about the same. Did bmw recall for intermeedit leavers in v...
2004 BMW 325Ci 2.5L vanos VIN: WBABW33494
p0011 and p0014, intake and exhaust timing to advanced, replaced the intake and exhaust timing sensors, no luck, checked the timing actuators and they are good,the car runs fine but after 2 starts the light comes back on, once again there is no problem driving...
2008 BMW X5 3.0si 3.0L Display Brakes Worn VIN: 5UXFE43518
What am i missing?
1999 Chevrolet Silverado 1500 5.3L Mechanical VIN: 2GCEK19T2X
This truck came in with a soft pedal. After replacing the master, bypassing the broken abs unit, and replacing all four calipers and bleeding it more times than I can count. It still has a soft pedal. The only thing left is the Vac booster. I'm stuck on this o...
2001 Chevrolet Suburban 1500 LS 5.3L Cruise Control VIN: 1GNEC16T71
Working on a 2wd 2001 Suburban with ETC that the cruise control does not work. Followed the test on AllDATA and it just sends you in a circle. When we look on Modis, it says that the stop lamp switch is on and does not change when you depress the brake pedal. ...
2003 Chevrolet Silverado 2500 6.0L gauges, radio, power window, power locks, 4x4 VIN: 1GCHK24UX3
The Symptoms: Instrument cluster fuel, oil, water temp and volt gauges intermittently go offline and the battery charge indicator is on. Radio is intermittent and occasionally with the key off the illumination lights will turn on and off. I expect this is rela...
2004 Chevrolet Suburban 1500 LT 5.3L cooling system VIN: 3GNFK16T64
Vehicle came into my shop 6 months ago as a very intermittant overheating situation. We were never able to duplicate issue and customer said vehicle would overheat on the dashboard only at highway speeds. We had replaced the thermostat with a Delco unit as a p...
2004 Chevrolet Tahoe LS 5.3L engine VIN: 1GNEC13Z54
Customer brought his Tahoe to our shop for a strong fuel smell underhood. He smells at startup and at stoplights. customer noticed this after having plugs replaced at another shop. They rechecked their work and found nothing wrong. Customer took to dealer, the...
2004 Chevrolet Tahoe LS 5.3L Steering coulmn VIN: 1GNEK13Z84
Hey guys, I got this 04 Tahoe 4x4. I have a rotational thump noise when turning the steering wheel at slow speed or parking lot manuevers. I can feel it slightly through the column, I checked the tie rods they seem to be ok, can't seem top feel where it's comi...
2005 Chevrolet Aveo LS 1.6L Poor Idle Quality VIN: KL1TD52665
Thanks for your help. I thought we had this one fixed but wrong again. This car came to us through the auction. It has a slightly rolling idle (2 to 3 cycles per second +/-25 rpm) with random skips in neutral. Idle in drive is pretty solid with occasional skip... Trouble codes: P0300
2006 Chevrolet Cobalt SS 2.4L Poor Idle Quality VIN: 1G1AM58BX6
Car came in for fuel injection service and intake decarb as maintennce. Did service as asked for. Now when you start car it idles ok. Soon as you give it gas the idle wont drop less than 2000rpm. Checked for vacuum leaks or any hoses being knocked off. All app...
2008 Chevrolet Tahoe LTZ 5.3L Misfire, MIL Lamp on VIN: 1GNFK13018
I have a Tahoe that is out of factory warranty by a month and has a compression issue on #6. With the rocker cover off, the #6 intake rocker will move when cranked over for about 20 crankshaft revolutions (i assume verifying the camshaft is ok on that lobe), t... Trouble codes: P0306
1976 Dodge D200 Custom 5.2L Hesitation, Stall VIN: C30BE6V126
Thanks in advance for your help. This motorhome was towed in as a crank but no start. Vehicle had no spark, another tech here fired a coil, module, and dist in it. It now starts but dies as soon as you put it in gear. The other tech thru his hands up in the ai...
2002 Dodge Stratus SE 2.4L MIL Lamp on VIN: 4B3AG42G02
Vehicle came in on hook. Overheated badly. Melted top of radiator. Did get it running again but motor done. Told customer needs engine. Installed used motor. Now throwing codes 335 and a 340 after second start. Switched every part from old engine to new used m... Trouble codes: 335 (crank position sensor), 340 (camshaft position sensor)
2008 Dodge Ram 2500 SLT 6.7L Starting System VIN: 3D7KS28A08
Whats going on brothers!! i have a vehicle that was brought to me in bad condition. I found all kinds of wires that were snipped, and unplugged. Took care of that issue, then i replaced the fuse box because it had a big burnt spot on the side of it and i wasnt...
1993 Ford Escort GT 1.8L Clutch VIN: 1FAPP1289P
This car came in with a bad clutch. Changed clutch with a NEW pressure plate, disc and throw out bearing from Auto Zone. The flywheel was flat and did not show signs of having hard spots. New clutch worked great for 2 weeks then the car comes back in with a lo...
1995 Ford F-350 XL 7.3L Cuts out, Stall, dies VIN: 1FTJW35FXS
We been dealing with this truck dying while driving and wont restart for a few months. Eventually we narrowed it down to restriction in inlet fuel pickup in both fuel tanks. The plastic pickup screen broke into many small pieces and would get sucked into the t...
2000 Ford Ranger XL 3.0L Poor Idle Quality, Stall VIN: 1FTYR14V4Y
This vehicle originally came in with a P0401: Insufficient EGR, code. Customer complained of "No Power", and "Unable to Accelerate". Checked DPFE(Exhaust Gas Pressure sensor), with scanner. Reading was .15 volts so replaced sensor. Vehicle still acted like it ... Trouble codes: U1262 (SCP Data fault for J1850 BUS)
2008 Ford F-350 Super Duty XL 6.4L Low Beam Headlamps VIN: 1FTWW31R58
Customer complaint is of inoperative low beam headlamps. Vehicle is a plow truck & also has remote start system installed (appears to be a Ford system.) Found low beam headlamps WILL work, but after a short (less than 3 second) delay. Vehicle is not equipped w...
2008 Ford F-450 Super Duty XL 6.4L Odor In Cab VIN: 1FDXX47R08
When you drive vehicle normal, stop and go traffic, every once in a while you get a very strong odor which smells like you are lighting up some charcol. The only pattern seems to be stop and go traffic and to be at a stop for several minutes.Then there is a li...
2003 GMC Envoy SLT 4.2L reduced engine power VIN: 1GKDT13S13
The P1271 blues: this vehicle has a history of setting P1271. It’s very intermittent and I have yet to duplicate it. By the time it arrives at the shop the sensors are working normally and the repair is to cycle the ignition key off and back on the get the red... Trouble codes: P1271
2003 GMC Sierra 2500 HD SLE 6.6L antitheft light is on VIN: 1GTHK23153
dtc B2948 keeps resetting the 12v ref voltage on the passlock sensor does not shut off with the key shutting off have tried calibration updates on bcm and a known good bcm no change... changed ecm with known good ecm same thing preformed theft relearn with tec...
2004 GMC Sierra 1500 SLT 5.3L nocommunication VIN: 2GETK19T44
Thank to all in advance this 1500 has no communication with any modules it will start and run no acc Windows doorlocks radio cluster etc while checking bcm everything started to work but then quit not to sure where to go unplugged all easy modules checked no v...
2001 Honda CR-V EX 2.0L Stall VIN: JHLRD18611
Stalls when comming to a stop when cold (below 50) if left in shop over night doesn't stall .allmost like tcc is still engauged (pulled lock-up solenoid pk screens clean )After engine reaches temp 195 No problems
2003 Honda Odyssey EX 3.5L Sway Bar VIN: 2HKRL18904
Customer Complaint of popping similar to a spring sound. Very Intermittent. I raised it up everything is tight suspension wise I found that there is some history of loose control arm bolts doing similar noises I checked and tightened them. I noticed the sway ...
2007 Hyundai Santa Fe GLS 2.7L No Start, Poor Idle Quality, Stall VIN: 5NMSG13D77
After refueling with any amount of fuel, the vehicle will have an extended crank and after approx 30 seconds it will start but runs rough. After driving for 2 minutes the vehicle runs fine. This doesn't occur again until the next time adding fuel. Any help wou...
2005 Infiniti G35 X 3.5L Cuts out, Stall, MIL Lamp on VIN: JNKCV51F45
Car has trouble code po340 camshaft position sensor problem bank 1,in history only,clear codes and it will come up again only in history,and also cuts out intermitingly and restarts,it cut out with me once on test drive.freeze frame data shows happening at 180... Trouble codes: P0340 (Camshaft position sensor problem)
1989 Jaguar XJS 5.3L Excessive Emissions VIN: SAJNV4844K
The car runs rich about 10-20 sec. after being started with no power and lots of smoke and will clear out if the rpms are held up. It runs fine hot. Michell and all data say this car has a cold start injector and a thermo time switch which I am unable to find ...
2005 Jaguar X-Type 3.0L Cooling Systems VIN: SAJWA51C35
Engine Temperture to Low-- Vehicle runs at 1/4 on the temp gauge. I have verified gauge, ECT, and infrared thermometer all agree its really running at 150F. I can get the vehicle to run at normal operating temperture (185-200F)if i leave it idle for extended p...
1998 Jeep Cherokee Classic 4.0L Calipers, pads? VIN: 1J4FJ68S8W
So, this Jeep seems to have sticking brakes for the first 2 blocks it is driven while cold, usually in the AM. It presents as a regular clunking noise from the front end, usually 2x a second or so. After 2 blocks driving, it goes away. With the wheels off on t...
2004 Kia Amanti 3.5L MIL Lamp on, No Accel VIN: KNALD12414
Two days after timing belt and spark plug replacement, customer calls and says car was running fine, then started up one time and it was running poorly, had no power and check engine light was on. When I looked at the car, it was running fine, with no symptoms... Trouble codes: P0431 (Cat. efficiency), P1193 (Low rpm limp mode), P2127 (APP sensor E ckt)
2009 Kia Rondo EX 2.4L 2-3 Shift VIN: KNAFG25849
the customer stated that since he downshifted the vehicle downhill, he noticed a slight jerk on 2-3 shift, dealer flushed the tranni but the problem is still there. i roadtested the vehicle indeed the problem is there 2 on 3 times i stoppped and go and only wh...
2009 Lexus LX570 5.7L Mechanical VIN: JTJHY00W79
this Lexus make me mad!!! I need your help LEX guys. this LX 570 had an Engine repair 2 or 3 months ago in another shop. it came to me with no compression condition . so we removed the engine rebuilt it again with all genuin parts from dealer. engine run smoot...
2002 Lincoln Continental 4.6L Poor Idle Quality VIN: 1LNHM97V52
Thank you all who take the time to read my rant, this car is on my last nerve. My post is probably more of a rant then a tech request ;) Customer was driving up from california to washington and noted the vehicle was harder to stop due to idle staying to high...
1991 Mazda 626 LX 2.2L No Start VIN: 1YVGD22BXM
Vehicle got towed in would not start, has had used dist and new coil installed in past, no spark no injector pulse. installed another coil and dist. and still no spark. found that coil was not firing so another coil purchased and installed. Vehicle started and...
2004 Mazda 6 S 3.0L No Start VIN: 1YVHP80D34
this mazda 6 is a no start. dtc's p1487 p0403 and throttle body codes. also i am unable to comunicate with the instrument cluster through the scan tool. traction control lamp is on. The car will start once in a while, seems to be cold related. any help would b... Trouble codes: P1487, P0403, P2100, P2110, P2107, C1119
2001 Mercedes-Benz C320 3.2L Front and tail lights VIN: WDBRF64J11
Customer car got no head lights and tail lights,High beam light works through high beam switch, Check all the fuses good, power gets to front and rear sam .My MB dignostic will not comunicate with front SAM, rear Sam,SRS control unit and instrument cluster uni...
2002 Mercedes-Benz SLK32 AMG 3.2L No Start VIN: WDBKK66F42
Vehicle tow in no crank. Vehicle was park also in heavy storm/rain. No crank after that. check and found above codes. check for voltage to starter, no voltage during cranking with key. bypass Starter, vehicle cranks, but no start. Check water flood and found r... Trouble codes: P2071 (P2071-72 start enable of das not sent check fault messages in control module ezs), P2601 (Event the voltage supply of circuit 87 has over voltage)
2000 Mercury Sable LS Premium 3.0L No Start VIN: 1MEFM55S8Y
I'm ready to pull my hair out on this on..came in for no start..will fire for about one second but then i lose spark and injection pulse..have replaced cam and crank sensor..have ohmed wires for cam and crank sensor..replaced the ecm battery and started..if i ...
2003 Mercury Mountaineer 4.6L Surge, Stall VIN: 4M2DU86W83
have a buzzing noise and vibration thru the air intake, really bad if you lift up air cleaner, can't figure out why. also starts surging when this happens. have put on 2 iac's. what am i missing??? going bald over this one.
2007 Mercury Mariner Premier 3.0L Misfire VIN: 4M2CU871X7
The problem i am getting out of this truck is the #5 coil keeps shorting out. When it comes back with the misfire coil will not fire but i still have noid light. I can swap coils and it will follow coil. This will be the third time i have changed coil. Im thin...
2001 Nissan Xterra SE 3.3L MIL Lamp on VIN: 5N1ED28Y91
Hi guys This came in with a mil light on. We pulled codes and only found pending codes. I was just looking for input on the Nissan's mil usages. Usually we see the light is out with no current code setting situation. this seems to trip the mil with only pendi... Trouble codes: P0325, P1126
2006 Nissan Altima S 2.5L MIL Lamp on VIN: 1N4AL11D56
Hi Techs I'm having problem disconnecting the crank sensor connector. I pushed the green tab in but the connector did not pop out,try to pull it but it didn't move.I spend half hour on it and I'm going nowhere.Need help!!! thank ric Trouble codes: P0725, P0335
2006 Subaru Impreza WRX 2.5L No Start VIN: JF1GG79616
Hello Subaru tech's out there! Got this wrx pulling my hair out! First the vehicle came to us running poorly, stalling and no throttle response! It also had codes for air pump, and intake runner actuators. The vehicle well start again if you disconnect the bat... Trouble codes: P0607 (Control Module Performance)
2004 Toyota Sienna XLE 3.3L ABS, traction control etc. VIN: 5TDZA22C04
The anti skid activates with lots of noise and dash indicators flashing. This seems to have started after the r/f tire was repaired (dismount, plug patch, &re-balance). The problem will display intermittently and seems to be more frequent lately. TIA for your ...
2005 Toyota Avalon Limited 3.5L Smart key VIN: 4T1BK36B35
[...] 2005 Toyota Avalon Smart key system Hi guys, I have a Toyota Avalon that is a no start/no crank. Info center shows “key not found". There are not any codes in the pcm or smart key module. This is my first time with one of the smart keys. S...
2000 Volkswagen Beetle GL 2.0L No Start, MIL Lamp on VIN: 3VWBC21CXY
Vehicle came in with complaint of an intermittent no start. He got it started and dropped it off for me to check out. Checked for codes and got the codes posted up above as well as a P1472 EVAP LEAK DETECTION PUMP SHORT TO GROUND and a P1451 SECONDARY AIR INJE... Trouble codes: P1225 (Injector cylinder 1 short with ground), P1226 (Injector cylinder 2 short with ground), P1227 (Injector cylinder 3 short with ground), P1228 (Injector cylinder 4 short with ground), P1421 (Secondary air injection solenoid valve short to ground), P1425 (Evap purge valve short to ground)
2007 Volkswagen Passat 3.6 3.6L Rear hatch VIN: WVWLU73C57
Hello. I have this Passat wagon were the rear hatch will only go up half way with the electric motors and then stop. When you push it up all the way manually you can feel and hear the motors racheting. If you push the button to go down it will go about 3/4 of ...
2002 Volvo S60 AWD 2.4L battery draw VIN: YV1RH58D42
Hello Volvo Techs, This 02 S60 awd has a current draw of [...] with key out doors locked or unlocked after about 20min. I started by taking out each fuse in dash and trunk. Draw is still there. This is the first time seeing this car. It had a bunch of fault...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2002 Audi A4 Quattro Avant 1.8L No Start, Poor Idle Quality, MIL Lamp on VIN: WAUVC68E72
Well, turns out the radio supplied by the customer was not the factory radio. We wired the original plug back in but we wont be able to check the system for communication until the proper radio unit arrives and we install it. While the part is on order the c... Trouble codes: P0108, P0104, P0102, P0101, P0110.
1997 Chevrolet P30 5.7L Wheel Bearings VIN: 1GBHP32R4V
First off, special thanks to Tom, Al, Don, Alex, Matt, Ron, Dan, Larry, Charles, Joe, Gerald, Another Dan, and Brent- You guys all agreed I was over tightening the bearings. I was able to remove the seized bearings and clean up the spindles. I am going to talk...
2006 Chevrolet Silverado 1500 LT 5.3L power steering VIN: 1GCEK19T16
Installed new power steering box from another supplier ,seems ok at this time ,customer took vehicle a couple of weeks ago and all seems well ,if we have problem again I will advise
2008 Chevrolet Tahoe LTZ 5.3L Lifter VIN: 1GNFK13018
This is my "second" update because they only allow for one. I just got done installing the oil manifold valve body assembly and it still does the same thing. I even squirted oil in the problem cylinder to make sure the rings weren't washed out from excess fuel...
2007 Chrysler Pacifica 3.8L door locks VIN: 2A8GM48L97
evidently there was a problem with my scanner .Let the pac sit for 3 days and scanner works no codes can access all mods.and door locks work ,fob must be fryed.Its been gone for a couple weeks now with no calls .Owner wants to sell this pac so will problably n...
2002 Dodge Grand Caravan Sport 3.3L speedometer VIN: 2B4GP44392
Im going to call this a fix. Almost all replies figured wiring problem and I believe this to be true. I tightened the output sensor pins. I pulled the TCM and PCM connectors a few times during my tests. No corrosion or bad wires found. Customer has had 2 highw...
2006 Dodge Ram 1500 TRX4 5.7L Low Reverse Solenoid VIN: 1D7HU182X6
Thanks to everyone for there help on this vehicle. I installed a new solenoid pack and that fixed the problem.
1999 Ford Escort SE 2.0L idle VIN: 3FAFP15P3X
I end up replacing pcv valve and hose,hose was cracked in diferent areas, I reset ecm, I been waiting for customer to call me but hasn't call, so I belived problem is fix thank you everybody, most likely it was the pcv valve.
2004 Ford F-150 XLT 4.6L evaporator case
sorry for this delay the problem in this truck is clogged evaporator core tanks for the help
2005 Ford F-150 FX4 5.4L Starting VIN: 1FTPW14505
New PATS Transceiver but still no crank. Customer stated had a clicking noise in relay box at time of no crank. Checked relays and found a/c clutch relay bad. Oddly that fixed the truck. Unable to explain looking at wiring diagram. Thanks for all the help...
2006 Ford Freestar Limited 4.2L Poor Idle Quality, Misfire VIN: 2FMZA56246
Well we are getting a different engine for this van. #6 cylinder has cracked ring. Thanks for the help. Trouble codes: P0300, P0306.
2006 Ford Freestyle SEL 3.0L shifting VIN: 1FMZK05156
thanks to all who sent info , it was all a big help , it was a control valve , but since i dont want to pay 1100 for a valve body we got a trans with a broken housing for free and just changed the metronic unit , and did a fluid and a flush
2007 Ford F-550 Super Duty Lariat 6.0L Hard Start/No Power
So after further investigation and advise from other members, I removed the upper fuel filter and turned key on briefly, air came in with fuel, I adapted my fuel pressure test kit to bleed fuel off with engine running, has lots of air in it, turned engine off ...
2007 GMC Yukon Denali 6.2L Poor Idle Quality VIN: 1GKFK63817
Well I was already into this to deep with the dealerships misdiagnosis. I tried the only thing I could think of. I disconnected the battery and left it off overnight. next morning i found all was well with idle except that if i goosed it hot it would still sta... Trouble codes: P0121, P2119, P2135.
2008 GMC Sierra 2500 HD WT 6.6L ?? drivetrain VIN: 1GTHK236X8
Thanks for the help everyone. The problem ended up being the support (carrier) bearing. It didn't look bad but had alot more play than the replacement one.
1996 Honda Civic DX 1.6L master relay VIN: 2HGEJ6342T
I have been too busy to repair this personal vehicle but I will close this request with thanks to those Honda techs who responded. The most helpful and useful comments came from techs who suggested that I use a thin knife to spread apart the end of the plastic...
2001 Honda Accord LX 2.3L Heater VIN: 1HGCG66541
Thanks you all for taking the time to reply. Somehow it was not clear to many that this has a servo that pulls on the cable not the knob. The knob was fine. After getting the info on the pin out for the motor (thanks Long) I was able to determine that the serv...
2004 Hyundai Sonata 2.4L Alternator Belt VIN: KMHWF25S64
Hi Guys, thanks for all the tips and Travis hit it perfect. It was the balancer but not due to the damping rubber being worn but due to the pulley surface being worn. I removed the pulley again and looked it over very closly and the rubber was perfectly in tac...
2008 Mercedes-Benz S550 5.5L Starting VIN: WDDNG71X18
Installed new fuel pump and car now starts ok. Not sure why there was never any power at the fuse or at the plug connector. Maybe system shuts down if it sees a bad fuel pump. Everything is starting fine now. Thank you everyone for your help.
1998 Mercury Grand Marquis GS 4.6L Fuse #2 underhood VIN: 2MEFM74W6W
unfortunately the customer was unwilling to spend any money on futher diagnosis and decided to pick up vehicle.
2002 Mercury Sable GS 3.0L Pcm VIN: 1MEFM58U02
The motorcraft people e-mailed me back along with a picture of what they got when they punched in the vin of my car. Theirs only showed axle ratio 3.77. Not the axle ratio 3.77 Final drive ratio like mine shows when I punch it in. They said it must have somet...
1995 Nissan Altima GLE 2.4L shift solenoids VIN: 1N4BU31D7S
1998 Saab 900 SE Turbo 2.0L Top (Tsas) VIN: YS3DF75N7W
We found the wires to the header latch switch cut under the drivers front speaker where the stereo shop made the hole bigger. Wish we had started at the front rather than the rear, but the lesson learned is that is that voltage error comes up on all the pots f...
2002 Saturn LW300 3.0L Body control VIN: 1G8JW84R12
2005 Toyota Prius 1.5L power steering VIN: JTDKB20U95
The car needed a new power steering control module. The power steering module turned out to be pretty easy to get to. The panels above and below the steering column come off to access the module. I checked battery (12V) power and ground to the modul...
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