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Prev Professional Automotive Repair Technical Discussions for April 12, 2013
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Open Help Requests for All Makes and Models
Help Request Answers
2004 BMW 745Li 4.4L Engine VIN: WBAGN63404
Hello Group, This problem child 745 has been plaguing us for a while. Came to us for severe smoking out the tailpipe- the smoke would billow. We found engine oil pooled in the intake and breather hoses and valve covers. Crankcase vacuum was excessive and the ...
2004 BMW X3 2.5i 2.5L Mechanical
hi guys: I need help. I put a head gasket because it was leaking oil from the front right of the head. the engine was running fine before the rapair. i set the timing with all the proper tools and follow the secuence with the book. I have done this heads sever...
2004 Buick Century Limited 3.1L no communication VIN: 2G4W552J14
Client drove vehicle into parking lot, several issues going on; Gauges all at 0 or bottom, radio inoperative with a thumping noise coming from the dash, RED Brake lamp on in cluster, shift indiactor is showing the "D" with a circle around it, no matter what ge...
2003 Cadillac CTS 3.2L MIL Lamp on
code p1904 does anyone know what this code is comes up under pending codes Trouble codes: P1904
2006 Cadillac SRX 3.6L Steering Pump VIN: 1GYEE63736
Hello first of all just want to say thanks already, i have a 06 cadillac srx with no power steering, check the pump and it is not working. So replaced it, and it works then after 15 min and customer went to the highway and then came back with no power steering...
1990 Chevrolet Corvette 5.7L Poor Idle Quality, Surge VIN: 1G1YY3384L
Thanks in advance for the help. As you can see I have done a lot and am not sure where to go next. The engine sounds good mechanically, no ticking or knocking sounds, it does however smell extremely rich as one might expect with block learn maxxed in the rich ...
2000 Chevrolet Impala LS 3.8L starter & dash lights VIN: 2G1WH55K1Y
Got this peach of a problem with this car. The car will not crank/start but when turning the key to the off or taking out (wait 5 seconds) the instrment light flash (ABS, red brake, air bag and battery) and the car gose into a cranking mode. turn the key back ...
2007 Chevrolet Silverado 1500 Classic WT 4.3L distributor VIN: 1GCEC14X77
PO300 DTC "misfire detected" in memory. Vehicle presented with extended cranking period but would eventually start after 6 or 8 attemps however, after partial warm-up severe misfire set in at a steady 1,500 to 1,800 steady rpm's @ no's 3 & 4 but would clear up...
2007 Chevrolet Silverado 1500 Classic LT 5.3L Surge, Stall, MIL Lamp on VIN: 1GCEK19Z57
Thanks for your time reading this. This truck will intermittently stumble and run rough, will not accelerate and may stall, and the CEL comes on immediately. It might do it twice a week, and may not do it for 3 weeks. It has never done it with me, only the cus... Trouble codes: P0101 (MAF out of range), P0106 (MAP or BARO out of range), P0128 (coolant thermostat)
2007 Chevrolet Silverado 2500 HD Classic LT 6.0L Hesitation VIN: 1GCHC24U47
This truck originally came in with a code P0174 too lean bank 2. I replaced the b2s2 o2 sensor when I saw a reading of 0 volts intermittently on scan tool. Cleared code and drove to complete monitors for smog check and code P0420 cat efficiency code came on. I... Trouble codes: P0420 (Cat sys efficiency below threshold bank 1), P0174 (Too lean bank 2)
2011 Chevrolet Silverado 2500 HD LTZ 6.6L Airbag light on VIN: 1GC1KYE84B
New SDM is programed, but cannot clear 2 remaining codes. They are B0016-OE and B0023-OE, both for roof rail air bag, left and right, which both did deploy during accident. I have followed PPT, tested control circuit terminals for resistance, voltage, from air...
2012 Chevrolet Silverado 3500 HD LTZ 6.6L Won'T Run Sometimes VIN: 1GC4K1C89C
Vehicle travelled 10,500 miles with no complaints or issues-none at all. Came it because customer said it lost power and lights were flashing. On checking out the problem we found that the HVAC stopped, abs light came on, no response from throttle, all cluster...
2004 Chrysler PT Cruiser GT 2.4L No Start, MIL Lamp on, VIN: 3C8FY78G14
Customer drove to vegas, on the way back, check eng light came on, no driveability conplaints. Brought back to shop. Scan, and po340/p0335 returned. Checked circuitry, good., came to the conclusion pcm is the problem., install new computer, have vehicled progr... Trouble codes: P0340 (Cam sensor malf), P0335
2001 Dodge Caravan SE 2.4L Stall, MIL Lamp on VIN: 1B4GP25B01
Customer came on a tow truck with the code p0172 engine stall at start customer repalce o2 bank 1 i check reading and o2 sensor bank 1 working no vacuum leak engine running good but stall at idle, Trouble codes: P0172 (Running rich)
1995 Ford F-250 Eddie Bauer 5.8L Trailer Brake VIN: 2FTHF26H6S
Trailer brakes are not operational because there is no power to the dark blue wire at pin 4 at the trailer harness. Can not find location of electric trailer control unit to check wire at the unit. All fused are good.
2004 GMC Envoy SLE 4.2L all gears VIN: 1GKDT13SX4
Truck came in and customer said there was no reverses some times and no drive. All so stated the PRNDL was not working properly and some time revers is drive and some times neutral.I tried to get the truck to duplicate the problem with no luck. So i call the c...
2003 Honda CR-V EX 2.4L Surge, Cuts out, Misfire, MIL Lamp on VIN: JHLPD78863
This car came in with codes po134/p1259 we check and reset codes for the o2 code and had no problem with the 1259.The customer picked up car and with in two miles she said the car ran bad and when she got it back to us the 1259 was back but the car was running... Trouble codes: P1259
2008 Infiniti G37 3.7L Timing VIN: 1NKCV64E88
Car came in running poorly. Timing shows -23* retarded on both banks. Searched iatn and found a couple posts regarding chains being off. This is uncharted territory for me and I was wondering if there is a way to check chains/timing marks without spending the ...
2003 Kia Sorento EX 3.5L Na VIN: KNDJC73393
Hoping someone can tell us the best way to replace ignition wires. Its been a while since we did a set and i remember they were a real pain and we gave a "combo" deduction on labor. Didn't make that mistake this time. Thank you in advance.
2001 Lexus RX300 3.0L Knock Sensor VIN: JTJHF10U11
have changed knock sensor bank 2. Trouble already there. Second time, i changed knock sensor bank 1, knock engine wire harness and same problem happened again. Already check engine with p0330, vsc ligh, and some times the automatic transmission won't shift cor...
2005 Mercedes-Benz C240 4Matic 2.6L Coolant in oil VIN: WDBRF81J35
Hi Guys, I have this Mercedes 2.6L in here. I never worked on this motor before. The preoblem is coolant getting in the oil and setting the "oil overfill warning". I see in the archives that Mercedes had problems with the transcooler leaking fluid in to the c...
1996 Mercury Villager (Van) GS 3.0L Poor Idle Quality VIN: 4M2DV11W5T
I have a 1996 Mercury Villager thatís giving me trouble. Runs OK cold or at speed but after it comes to temp it has poor Idle. When it starts it I can add some propane and idle smooths out. Scanner shows that the long term fuel trim is at 90 but the O2 shows v... Trouble codes: P0325 (Knock sensor)
2000 Nissan Maxima GLE 3.0L Suspension VIN: JN1CA31AXY
hi all good people in iatn network i have a nightmare with this car. thank god its my good friends car. it has a heavy noise when going over path holes. we have changed struts, strut tops, isulators , springs, controll arms , sway bar links and bushings and ye...
2005 Nissan Frontier LE 4.0L No Start VIN: 1N6AD07W85
No codes and the check engine light flashes when we spin it over and wont start. No rpm signal
2008 Nissan Rogue (Truck) SL 2.5L lack of power VIN: JN8AS58V88
Customer stats that when climbing a grade the vehicle does not exceed 40mph and that rpms dont exceed more than 3500 with pedal floored. Ck for back presure 1.5psi at 3k rpms, normal. No codes present. Fuel presures and trims all within specs. Unable to duplic...
2009 Pontiac G6 GT 3.5L Cuts out, Misfire VIN: 1G2ZH57N69
Car has a miss right off idle from about 1200 rpm to 1500 rpm. Feels like a bad spot in the accelerator pedal sensor. Car was taken to dealership to get a software update but they said all is up to date. Hope someone can help.
2003 Volkswagen Jetta GLS 1.8L Power Brake Booster VIN: 3VWSE69M03
Hi there, According to the driver this vehicle developed a leak at the booster inside the car after a set of calipers were replaced under warranty. We replaced the original booster due to intermittent brake operation and loud hissing four (4) times. Pedal see...
2004 Volkswagen Touareg V6 3.2L electric VIN: WVGBC67L54
Hi every one i need some help w/this vw , this vehicle come to me from other shop, customers conser engine start and dies out after few seconds and customer states that the vehicle was park for about 3 months during the winter,so i scanned all module for codes...
2005 Volkswagen Jetta 2.5 2.5L Mechanical VIN: 3VWRF71K45
Hello all I am not a VW Tech and I am trying to remove the transmission I have removed all the bolts and it still seems stuck. I have checked alldata and it does not show anything I need. I noticed some of those special star bolts but did not notice anything i...
1999 Volvo S80 T6 2.8L Immobilizer VIN: YV1TS90D0X
Vehicle was towed in with "no crank no start condition" service srs warning in message center. Accessed dtc's, srs sytem dtc: e003,"control unit program faulty central electronics: cem-6c48 "wrong or no signal, wrong code" also dtc 720a "ecu to immobilizer fau...
2000 Volvo V70 X/C AWD 2.4L no power VIN: YV1LZ56D0Y
car slowly lost horse power during interstate travel. would barley accel eventially would only reach aboout 30 mph thought it acted like stopped up exhaust cut exhaust loose in fron of converter no change. after car cools off it will run normal for a 2 miles a...
2001 Volvo V70 X/C 2.4L Heater Core VIN: YV1SZ58D81
I am trying to replace the o-rings where the pipes enter the heater core. For the life of me, I cant get the retainer clips to go back in, It's as though the o-rings I purchased from Volvo are to thick. Is there a trick to this? The old ones came out pretty ha...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2005 Audi S4 4.2L Mechanical VIN: WAUGL68E15
Just received word from the trans shop that car is all better. Apparantly a roll pin (as one of you had stated)breaks and causes it to be stuck in gear. It was between 3rd and 4th slider. Thanks again for all the info. Bob
2003 BMW X5 4.4i 4.4L Battery light VIN: 5UXFB33553
There is a fault code in air suspension which is CAN BUS and i cant clear it. Looks like the engine had work done on it. There was bolt missing for valve cover and leaked oil in the coils. We think that in previous repair, technician didnt tight the ground wir...
2004 BMW 760Li 6.0L Surge, Cuts out, Stall VIN: WBAGN83444
Thanks everyone for the positive input. The problem was as pointed the High Pressure Fuel Pump on the passenger side. Gas was coming out from the evap hose. All good now. WE checked the fuel filters as wel and both were clugged. Thank you again.
2003 Cadillac Seville SLS 4.6L suspension VIN: 1G6KS54YX3
thanks guys for the advice. I haven't looked at the sway bar end links. I did check for cracks in the sub frame. vehicle is scheduled back in a few weeks, to re evaluate noise.I will take all your suggestions in great consideration.thanks you with great apprec...
2007 Chevrolet Impala LS 3.5L p0717 VIN: 2G1WB58K47
I had a chance to test a few known good cars today. All outputs matched my problem car. I have ordered a new TCM and feel that will be the repair. I will update if the TCM was not the fix. Wanted to get this closed by the weekend. Thanks to all for your help.
2007 Dodge Ram 3500 Truck ST 6.7L Hesitation, Cuts out, MIL Lamp on VIN: 3D3MX48A57
thanks for all the replies. I tested fuel system and had low to no fuel pressure from transfer pump. I replaced pump in tank and re-ran fuel system tests which passed. test drive agian and ran great for first couple of miles, hit some rough road and it star... Trouble codes: P1011, P000F, P0087.
1998 Ford Windstar GL 3.8L no shifts VIN: 2FMZA5144W
It was an electrical issue between two things the trans range switch and the trvall for the cruise control deactivation switch( brake pressure switch)
2003 Ford Taurus LX 3.0L Poor power VIN: 1FAFP552X3
Sorry this took so long. Plugged converters was cause of problems. i would not gut converters so they took car somewhere else and had it done.
2006 Ford Fusion SE 3.0L MIL Lamp on VIN: 3FAFP07136
This was my first help request so i may not have provided enough info, replacing the bank 2 solenoid/housing assembly would have required removing front cover and timing chain. I was not sure if they may have been a design change. All the ports in the housing ... Trouble codes: P0022 (Variable Camshaft Timing Bank 2 Solenoid).
2008 Ford Taurus X SEL 3.5L tachometer VIN: 1FMDK02W78
Thanks for the confirmation.I felt pretty sure the cluster needed to be sent out but just hadn't seen a Ford act this way. I was able to supply the customer with in estimate for future reference in case they decide to have it repaired. David
2004 GMC Envoy XL SLE 4.2L Right rear air spring VIN: 1GKET16S54
Since this vehicle is not currently being driven, we had plenty of time to check it for further leaks. Soap tested all lines and bags again and all tested good. This leads me to believe that the problem is a check valve in the compressor. And since it takes a ...
2004 GMC Sierra 2500 SLE 6.0L heating VIN: 1GTHC23U34
The dealer had the blend door accuator so I installed it today. Works like new with plenty of hot air comming out of right and left vents. Can't thank you all enough. I really appreciate your expert help.
2005 Honda CR-V EX 2.4L fuse 9 under hood VIN: JHLRD78845
Thanks for all the help guys- it was the instrument cluster causing the draw. Greg and crew
2001 Hyundai Elantra GT 2.0L MIL Lamp on, monitors not ready VIN: KMHDN55D51
Well, we reached the NY state threshold for a waiver (450 IIRC), so this one went away. The customer put 300 miles on it so far and said the light is still on. A new upstream O2 sensor may have corrected the P0133 (slow response), but we may never know. I... Trouble codes: P0133 (B1S1 signal slow), P1166 (Lambda control at limit), P0456 (EVAP very small leak).
1995 Infiniti Q45 A 4.5L Surge, Cuts out VIN: JNKNG01D4S
sorry about the long delay in responding as we were waiting for cust to authorize further diag time.what we did find is that when eng cut out occured fuel pres remained steady & spark also remained.found pos feed to injectors steady but neg side from ecm drops...
2001 Jaguar Vanden Plas 4.0L Coolant Temp. VIN: SAJDA24C11
Thanks for all your help, folks. a couple of you advised checking the heater control vave for proper function. We did this. Some of you questioned the coolant temp sensor and the dash gauge. In my original post, I noted that we had cross-checked the temper...
2001 Lexus RX300 3.0L Poor Idle Quality VIN: JTJHF10U41
I want to start out by saying thanks to all who replied.It turned out to be a stuck valve. Cleaned it after determining electrically it was fine. Works great, amazing how a little carb cleaner can cure so many issues on todays complex cars. Thanks again.
1975 Mercedes-Benz 280 2.8L No Start, Cuts out, Stall VIN: 1140601211
After I posted this request I decided to bypass the dwell module by running the points straight to the coil and it runs all day long. So now I gotta find a module, SUPER THANKS to all John
1999 Mercedes-Benz CLK430 4.3L Limp Mode VIN: WDBLJ70G8X
ok .. I have found the correct information . Richard from japan hit the nail right on the head. Most v8's and v12's from 1996 thru 2002 use same trans.So there is a difference in gears with the W5A330 (4 AND 6 CYLINDERS USE ) AND THE W5A580 (8 AND 12 CYLINDERS...
2000 Mercedes-Benz CLK320 3.2L alarm control module VIN: WDBLK65G8Y
thank you for the info it was in the trunk to the right of the battery...
2000 Mercedes-Benz CLK320 3.2L battery VIN: WDBLK65G8Y
thank you all for the usefull info this car had two problems first was at some point in time someone had pulled the drivers door panel off and didnt put the little trime peice that goes around the door latch area so the door ajar switch was never closing,and t...
2001 Mitsubishi Montero Sport Limited 3.5L Radiator VIN: JA4LS41R51
We have not technically fixed this vehicle, but are confident we have diagnosed a failing head gasket. She finally left the car overnight with us, and I incorporated a few techniques learned from members here. This is my final report to the customer: On cold ...
2009 Nissan Versa SL 1.8L Unknown VIN: 3N1BC13E59
Quite a few have stated that engine problems are quite regular. I did a Motorvac decarb with no results. Even under Google search I found quite a few people having this same issue. Customer understood completely. Dreadfully he is out of the engine warranty. He...
1998 Toyota Camry CE 2.2L Mechanical VIN: 4T1BG22KSW
Thanks for all the response, I will be getting the car back in soon and will remove the plug and use a good sealer on it. I had already replaced the valve cover gasket.
2005 Toyota Corolla CE 1.8L rear brakes VIN: 2T1BR32E85
Thanks to all who have replied, in the end I discovered that the noise would disappear after I resurfaced the brake drums & after driving the car long enough to heat up the brake drums the noise would return & stay untill I turned the drums again, so I decide...
2003 Volkswagen Jetta GL 2.0L Misfire, MIL Lamp on VIN: 3VWRK69M23
This vehicle is repaired. Thanks you all who took time to help. Most of you were dead on with regards to coil pack. I replaced coil pack & Ignition Wires with dealer parts. Then I held car for a day while test driving it locally. All is well. While test drivin... Trouble codes: P0300 (VAG -16684 Random/Multiple Misfire), P0304 (VAG - 16688 Cylinder Misfire Cylinder 4), P0420 (VAG - 16804 Catalyst Threshold Below Efficiency Bank 1).
2006 Volkswagen Jetta Value Edition 2.5L Incorrect purge flow VIN: 3VWPF71K16
Thanks for all the replies. Overwhelming response for changing the purge valve. Replaced valve and code has not come back. You have to love intermittently working electrical components. Thanks again for the help.
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