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Prev Professional Automotive Repair Technical Discussions for April 29, 2014
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2005 Audi A6 Quattro 3.2L Hesitation, MIL Lamp on VIN: WAUDG74F35
This Car Idles Ok And Drives Ok But It Is Definitely Lacking Power And When You Clear The Codes The P0341 And P0366 Come back On with second Ignition. Trouble codes: P0014 (Bank 1 Camshaft B Exhaust Reatard Set Point Not Reached Over- Advanced Not A Plausible Signal), P0366 (Camshaft Position Sensor Bank 1 G300 Implausible Signal Short With Power), P0341 (Camshaft Position Sensor G40 Implausible Signal Short With Power), P0136 (Oxygen Sensor B1 S2 Malfunction In Circuit Not A Plausible Signal), P0300 (P0301 p0302 p0303)
2000 BMW 528i 2.8L starts and stalls VIN: WBADP6340Y
This one goes out to the BMW techs out there. This is a lengthy post so please bear with me. Car originally came in with a pretty much no start condition. If it did start it smoked and would stall. Smoke tested for vacumm leaks. None found. Remove plugs and th...
2006 BMW X3 3.0i 3.0L Poor Idle Quality, Surge, MIL Lamp on VIN: WBXPA93436
verified that the car was presently in limp mode with no throttle response and surging at idle. Scanned the system and found multiple fault codes for throttlebody related issues. With the scan tool connected I was able to verify that that potentiometers were r... Trouble codes: 2796 (incorrect throttle adaption), 2787 (throttle potentiometer 2), 2786 (throttle potentiometer 1)
2007 BMW X5 4.8i 4.8L Poor Idle Quality, Cuts out, Misfire VIN: 5UXFE83567
The vehicle will have a poor idle, and misfire heavily upon cold start up. The car will not throw any codes, and after 20-30 seconds, it will run fine. I have ran the intermediate lever test on ista, and it came back fine. Fuel pressure is fine, but when it is...
1999 Cadillac Seville SLS 4.6L oil level VIN: 1G6KS54YXX
I have a 1999 (vin X) Cadillac Seville SLS with northstar 4.9 (vin Y), owner stated it was 2 quarts low on oil, he filled it and drove it for aprox 250 miles and it was 2 quarts low again. Oil leak from around "rear main" by his description. when we got it the...
2006 Cadillac SRX 3.6L Numerous codes VIN: 1GYEE637X6
This vehicle came in on 02/11/14 (mileage 80310) with the following complaint traction control light came on and now vehicle is hard to turn, also a grinding when idling. Grinding noise was coming from the bearing in the bracket for the cooling fan. Performed ... Trouble codes: P0318 (Rough Road sensor circuit), P1629 (Theft Deterrent Fuel Enable Signal Not Received), U1040 (No Communications EBCM), U1064 (No Communication DIM), U1153 (No Communication Climate control), U1192 (No Communication Theft deterant)
1994 Chevrolet K1500 5.7L Poor Idle Quality, Hesitation, Surge, Stall VIN: 2GCEK19K9R
hey guys this pickup came into my shop with a complaint that it lopes and surges at idle and will die shortly thereafter. it was in a shop about a month ago for a new GM crate engine due to excessive oil consumption. it shows no codes. the list of new parts th...
2005 Chevrolet Silverado 2500 HD 6.6L Temperature Gauge VIN: 1GCHK29265
Customer complained of dash gauge and driver information center shows engine overheating. Coolant level and condition looks good. All fluids under hood checked OK. Engine did not appear to be overheating, but dash gauge and driver information center indicated ...
2007 Chevrolet Colorado LT 3.7L ignition VIN: 1GCCS13E07
Car came in a tow truck customer says he had another mechanic try to fix wiper speed not working properly by the time he din't figure it out the truck came to me with a no crank condition. Replaced ign. Switch,bcm and Ecm they had clear burnt marks, had someon...
2008 Chevrolet Colorado LS 3.7L ABS/traction control VIN: 1GBDS14E28
Hello people. Thanks in advance for any tips..These rigs have been out for years and somehow I have never had the honor? of working on one till now..This vehicle came in originally as a simple parts replacement job. Customer wanted front hubs/sensors, and pads...
2002 Chrysler Voyager 2.4L Fuel system VIN: 1C8GYN2712
Hi.This is mainly for our European Friends. I have this van here, complete VIN: [...], IT IS A 2002 Chrysler Voyager, or Town Country from Holland, it is 2.5 Lts Diesel Egine, Standar Transmission. I need to do diagnostics, there is engine problems...
1999 Dodge Caravan Sport 3.3L Heater Control Module VIN: 2B4GP45G3X
Originally the problem with this vehicle was that the rear wiper did not work. I narrowed that down to the switch, which is part of the temperature control module. Due to the high cost of a new module and the high mileage of the van, the customer elected to go...
2001 Dodge Grand Caravan ES 3.8L Radio, Windows, Wipers, Both Blower Motors VIN: 2B8GP54L91
This is my van and I am a little bit at a loss of where to go next. All of a sudden for no rhyme or reason while driving down the road I will lose power to all of these Accessories. Front Wiper only not the rear wiper, Both front and rear blower motors, not th...
2006 Dodge Magnum SXT 3.5L No Start VIN: 2D4GV47V16
I have been working on this off and on for about 2 weeks. It intermittently wont start and when it does it say "no bus" in the cluster. When it does there is a no start condition and there is no communication to any modules. On one occasion the no bus was ther...
2006 Dodge Sprinter 2500 2.7L Cuts out VIN: WD0PD644X6
Hello Techs. Got this Sprinter van came in at the end of the day. Customer said it cuts out and no power. Pedal is to the floor like nothing is there. It doesn't happen all the time. He stated. I scanned the computer and found P2124 Injector Circuit shorted to... Trouble codes: P2124 (Injector circuit shorted to ground or voltage)
1989 Ford Ranger XLT 2.9L Poor Idle Quality, Random Partial Miss
When the engine is first started, cold, warm or hot, it runs SMOOTH AS GLASS and is quiet as a mouse. You could balance a full wine glass on the intake. As soon as the O2 starts to sweep and system goes into closed loop, the engine develops a rough idle with r...
1997 Ford Expedition Eddie Bauer 4.6L Poor Idle Quality, Poor Fuel Economy, low power VIN: 1FMEU18W9V
This is my personal vehicle. I have kept very good car of this. I really want to keep it in tip top shape. This problem persists, despite all the parts I have replaced over the past 5 years. These parts were replaced for different reasons, failure, age or whil...
2001 Ford Windstar LX 3.8L Mechanical VIN: 2FMZA51401
01 Windstar with P0171 & P0174 system too lean codes. Vehicle runs and operates just fine, only complaint is check engine light always on with above codes. Fuel pressure fine, have gone up and down looking for vacuum leaks with no luck. Intake gasket has been ...
2006 Ford Explorer XLT 4.0L No Start VIN: 1FMEU73E96
We had this 06 Explorer driven in about a month ago with customer concern of intermittent no start sometimes stall while driving.Ran in shop until it stalled.Tech hit the tank and it started right up so he assumed that the pump was failing.Checked amperage and... Trouble codes: 740 (TCC solenoid inoperative), 743 (TCC solenoid circuit failure during on-board testing), 1235 (Fuel pump control out of range), 1489 (PCV heater control circuit)
2008 Ford E-350 Super Duty 6.0L No Start, Stall VIN: 1FDSS34P68
This vehicle is an intermittent no start / stall when running . Cleared all codes and b1352 , p1260 comes back . Cleared KAM and vehicle started up and ran . After running and driving for 15 minutes vehicle died again while driving . This time code u2510 and b... Trouble codes: P1260 (Theft detected / vehicle immobilized), B1352 (Ignition key-in circuit failure), B1360 (Ignition run / acc circuit open), U2510 (Invalid data for security)
1986 Jeep Cherokee Pioneer 2.5L engine VIN: 1JCHB7820G
I am pulling my hair out on this one ( O wait I don't have any ) So here I go when the customer came in and want to replace the motor I thought cool good job well I put a Jasper 2.5 motor in and all is good BUT I cant keep it from overheating I have done every...
1989 Jeep Wrangler 2.5L Poor Idle Quality, Stall VIN: 2J4FY19E8K
The car came in for the 1st time with the complaint that the idle was rough with a tendency to stall when at idle. When driven at various speeds from town to freeway, the performance is normal. I ran a Motorvac fuel cleaning process which seemed to improve the...
1999 Jeep Cherokee Sport 4.0L No Start, Poor Idle Quality, Surge, Cuts out, Stall, Misfire VIN: 1J4FF67S0X
Cust rebuilt engine him self and had reman computer put in it from dealer and programmed, drove it for about 800 miles with no problem then it started back firing and seemed to have a bad misfire and died, would not restart, we got it started and at times it r... Trouble codes: P1391 (Intermittent loss of cam or crank sensor)
1994 Lexus LS400 4.0L reduced power VIN: JT8UF11E0R
o.k. customer states that vehicle will not accelerate. check engine and trac off lights are illuminated, I attempted to read trouble codes for engine and traction control by jumping diagnostic terminals and with verus scanner and can not communicate with vehic...
2004 Lincoln Town Car Executive L 4.6L Poor Idle Quality VIN: 1LNHM84WX4
This town car has me baffled. At hot idle the car has a rough idle. Checking the power balance all four cyl on the right bank are showing 20 to 25% down, while the left bank is 20 to 25% up. This is causing the rough idle. The cyl's are not completely missing,... Trouble codes: P2196
2005 Mercedes-Benz S430 4.3L Audio & Navi VIN: WDBNG70J85
Has any one ran into this problem. Actual values of optical ring after condition was present: command- vacant, amplifier- vacant, command audio- vacant, sound system vacant. Still no fault codes present. I'm thinking the main command unit may be intermittently...
2002 Mercury Grand Marquis LS 4.6L All Shifts VIN: 2MEFM75W32
This is a used car bought at auction so we have no history, but we know why it was sent to auction! When we got it we scanned for code because of a flashing overdrive light & cel. We found p0740 & p0743. We were sure it must have been the TCC & TCC Solenoid be...
2009 Smart Fortwo Passion 1.0L Steering Wheel VIN: WMEEJ31X59
I received a call from a customer today stating that he could start his car and that the transmission would go into gear just fine and that he could drive forward and backward but that the steering wheel was locked and he is unable to turn the steering wheel. ...
1996 Toyota 4Runner 2.7L Cuts out VIN: RZN1850012
G,day we had this 4 runner in our shop for a head gasket replacement. Pulled the head, had it skimmed and replaced the gasket. Started the engine and ran for approx 5 secs then mil lamp comes on and engine cuts out. Scanned for codes and got code 12 No rpm sig... Trouble codes: 12 (No RPM signal cranking)
2003 Toyota MR2 Spyder 1.8L Unknown VIN: JTDFR32033
We are not real familiar with these transmissions. When coming to a stop after vehicle is completely warmed up, the transmission will neutral out. So when he steps on the gas to go, the RPM's go up, but the transmission won't engage. Almost like the clutch is ...
2005 Toyota Sienna XLE 3.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5TDZA22CX5
Customer complaint is rough running; pulled codes and test drive. On the test drive vehicle looses power under acceleration, b calculated load is at 87-90%; AFS are at 3.6 to 3.8 B1 and 3.6 to 3.9 B2 rear O2 sensors are at .00 to .05 volts. Fuel trims (at id... Trouble codes: P0157 (B2 Oxygen sensor low voltage), P0174 (B2 Lean), P0171 (B1 Lean), P0300 (Random misfire misfires are occurring on B2 only)
1999 Volkswagen EuroVan GLS 2.8L Poor Idle Quality VIN: WV2KH2702X
Van came in with CEL illuminated P0400- Low EGR Flow. engine runs fine, only light is on. Found cracked/broken vac line from EGR valve to egr vac solenoid, replaced it. Egr vac solenoid tested good electrically but was clogged with carbon and/or oil sludge. I ... Trouble codes: P0400 (EGR Low Flow)
2001 Volkswagen Beetle GLX 1.8L cam to crank sync VIN: 3VWDD21C81
p1340 cam to crank correlation is killing me. have checked cam to crank timing, have checked cam to cam timing and have 16 links between marks. have replaced cam sensor same problem, what am I missing.
2002 Volkswagen Jetta GLS 2.0L MIL Lamp on VIN: 3VWSB69MX2
Group I have a jetta that keeps popping up all 4 coil codes. They are p0351,p0352,p0353 and p0354. I performed the coil ground replacement and still get the same codes. Is it common for this problem to damage the coil? I have no misfire and vehicle runs great ... Trouble codes: P0351 (Ignition secondary), P0352 (Ignition secondary), P0353 (Ignition secondary), P0354 (Ignition secondary)
2004 Volkswagen Passat GLS 1.8L Poor Idle Quality, Hesitation, Surge, Stall, MIL Lamp on VIN: WVWVD63B74
Hello, The vehicle originally came in for a coolant leak concern. It was found that the coolant outlet hose was leaking. Upon that repair it was also found that the coolant crossover pipe was leaking at a rusted out seam at one of the factory welded outlets. D... Trouble codes: P1558, P1579, P1545
2004 Volkswagen Jetta GLS 2.0L Engine VIN: 3VWSA69M04
Came in on a tow for a no start condition. Tech found stripped timing belt teeth and out of time. Even though repair information states this engine is interference, installed new timing belt kit to see if it would run. It did not. Both dry and wet compression ...
2005 Volkswagen Passat GL TDI 2.0L MIL Lamp on VIN: WVWNE63BX5
The vehicle looses power intermittently, and sets fault p0299 turbo under boost fault, the egr valve and turbo bypass soleniod have been replaced, unable to find a leak in turbo ducting, the wastgate solinoid has 20" vacuum to it. Trouble codes: P0299 (Turbo underboost)
2007 Volvo XC90 V8 4.4L PRESSURE sensor VIN: YV4CZ85267
HI VOLVO. TECHS. this car came ,with the code for rear diff. U041464 for clutch module, pressure switch. this code would disable the wheel drive, but not often . The new pressure switch goes out in 10ft! We put the old on back in and it can go up to 50mi befor...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1999 Dodge Durango SLT 5.9L No Start VIN: 1B4HS28ZXX
Well, as expected, a new computer fixed it. We ended up getting a rebuilt unit from a place in Florida that has a lifetime warranty. Apparently the dealer likes to go the "Spray and Pray" route with these things when they send out rebuilt units.
1998 Ford Explorer Eddie Bauer 4.0L All Systems Controlled By Gem VIN: 1FMZU34E3W
2004 Ford F-450 Super Duty Lariat 6.0L steering box VIN: 1FDXW47P04
Thanks to all I changed the power steering pump and both p/s hose's the steering is still a little rough with foot on the brake standing still but as per ford that is normal thanks to all
2008 Ford F-450 Super Duty Lariat 6.4L Warning Light VIN: 1FTXW43R68
This one is NOT fixed. Had a few replies saying maybe a pcm. We checked all wiring and everything tested good. Customer decided he didn't want to go any further. If we get this back I will update.
2004 Jeep Wrangler Sahara 4.0L oil VIN: 1J4FA59S44
sorry to say this jeep has not been fixed, if we figure it out i will post again. thanks for all your help, troy
2009 Kia Sportage LX 2.7L Compressor VIN: KNDJF72339
Everyone was right on. I removed the blower resister and found the outer solder joints had become seperated from the resister itself. Replaced the resister and climate control operates properly now. Thanks to everyone.
2003 Mazda Protege ES 2.0L fuel VIN: JM1BJ22593
I did all the diagnosis I checked for codes no codes timing was good everything was perfect in it I ended up putting a second set of new plugs and it fixed it self
2006 Mercedes-Benz R350 4Matic 3.5L Suspension VIN: 4JGCB65E66
Yes it was the right side airbag remember they sink only to a point where they apparently stop leaking probably due to either the material is covering the leak or the pressure is not great enough. And as to my follow up, we had the height sensing arms backwar...
2002 Pontiac Grand Prix GT 3.8L Stall VIN: 1G2WP52K82
This one is finally fixed. Turned out many of you were right with the MAP sensor. It was functioning so it wouldn't set a code but it was lying to the PCM with bad info at higher speeds. Replaced MAP with ACDelco and all is well. Thanks for all the insight... Trouble codes: P0101 (Mass air flow circuit out of range).
2000 Saab 9-3 2.0L immobilizer VIN: YS3DD78H8Y
Did the whole programming procedure and cleared the codes again, this time it worked. Don't know if I did anything different but when it says to press the unlock button at least 8 times, I pressed it about 20 times. Thank you for the help
2000 Toyota 4Runner Limited 3.4L MIL Lamp on VIN: JT3HN87R6Y
glad to close this post.I tested the battery initialy,found 10.5 volts twice and suspected a shorted cell.A visual on the plates revealed one plate exposed to air.My customer replaced the battery.I cleaned the MAF and throttle body and drove to run monitors.Ho... Trouble codes: P0420.
2007 Toyota Tacoma 4.0L Starting VIN: 5TEUU42N47
as this was more of an info request I am calling this one fixed. I called the local Toyota dealer and the advisor actually said I could call a particular locksmith and they would code the key I bought. the advisor said the locksmith can do more than they could...
2011 Toyota Camry Hybrid 2.4L Door Locks VIN: 4T1BB3EK5B
We had the vehicle for 2 days and operated the system numerous times with no problems. We never had drivers door unlock unless we approached car and put our inside drivers door handle area. I think Timothy from Virginia's idea that driver door handle may have...
2010 Volkswagen Tiguan S 2.0L engine VIN: WVGAV7AX7A
I would again like to say thanks to all who responded to my request. It seems as though some see alot of rear main leaks like the old rope seal days, I do not but expect to see many more with this new type seal.It is just a plastic ring glued to a tin plate. W...
2004 Volvo V40 LSE 1.9L blower mtr VIN: YV1VW27594
It was the resister indeed. most replies did state that was the most common fault. thanks again!
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