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Prev Professional Automotive Repair Technical Discussions for April 23, 2012
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1998 BMW 740iL 4.4L steering wheel controls VIN: WBAGJ8320W
hello everyone, i got this bimmer with no steering wheel controls working, cruise, horn, radio,switch lights nothing and steering is stiffer than normal.the only thing that works on column is tilt switch. ive narrowed it down to multifunction steering wheel mo...
1988 Cadillac Eldorado 4.5L compressor
hello techs i have this cadillac that i have to but a compressor on because it was blowing the ac fuse un plug the comprssor and the fues would stop blowing,it looks very hard to get to im thinking to take the radiator and the lower front motor mount off the f...
1990 Chevrolet Lumina APV 3.1L Poor Idle Quality, Hesitation, Surge VIN: 1GNCU06D3L
Started running rough, low power, found one injector not firing,tested with noid light, concluded defective injector. Replace both injectors, gaskets and pressure regulator. No change. Checked for codes, fuel pressure and misc tests. Concluded defective ecm. R...
1998 Chevrolet Corvette 5.7L no reverse,2nd,4th gears VIN: 1G1YY32G4W
the car came in running fine. I did a complete paint job, repaired LH window motor, AC blower motor, idler pullys and belts, etc. When I was finished and ready to deliver the car, I got the dreaded "service steering lock" warning on the ICP. while fixing fix t...
1999 Chevrolet K1500 Suburban 5.7L Compressor VIN: 3GNFK16R3X
Thanks for the help. I need another set of eyes on this. Suburban came in A/C inop, System was flat (empty). Customer stated "someone put 8 cans in, on my vacation to try and stop a leak". well i found o-ring gasket under combo hose to compressor blown out and...
2003 Chevrolet Silverado 2500 HD 6.0L no acceleration VIN: 1GCHK29U53
Very intermittent. Truck looses power while driving. Can put pedal to floor and does not accelerate. shut off for a few minutes and runs great till next time. could be as long as 2-3 months.Seems like throttle body issue, but have read many sites where techs r... Trouble codes: P220, P101, P134, P0171 (Lean bank 1), P0174 (Lean bank 2), P0300 (Random misfire)
2004 Chevrolet Trailblazer LS 4.2L cruise control VIN: 1GNDT13S34
Customer just bought vehicle. Cruise Control works properly until reaching 73-74 mph then shuts off automaticly, cruise indicator on Instrument panel goes off. If you keep the cruise acc. switch on multi function switch pressed as soon as speed hits 65 cruise ...
2004 Chevrolet Astro 4.3L Fast Idle VIN: 1GNDM19X84
Thank you for the help. This Astro will stay at a high idle at every stop. If you place it in neutral, it will drop to normal and be fine until the next stop. I didn't see anything similar in the database so I'm looking for some help. Thanks again.
2007 Chevrolet HHR LS 2.2L Misfire, MIL Lamp on, Low compression #3 VIN: 3GNDA13D67
I am wondering if this is a common problem with these vehicles, common causes, and common fixes. My guess is a problem valve. What insights have Chevy/GM techs have? Thanks! Trouble codes: P0303 (Misfire cylinder 3 detected)
1996 Dodge Dakota 5.2L Cuts out, Stall VIN: 1B7GG23Y9T
about a month after installing new engine and transmission at the same time the truck came back and would cut out while driving and sometimes stall at idle. The cut out is so fast that i cant catch on scanner while watching wave forms at sensors. It happens wh...
1998 Dodge Ram 2500 Truck 5.9L Engine VIN: 1B7KF2364W
I have a hard start concern on this 98 2500 pick up. Last fall i had replaced the transfer pump due to a crank no start condition after replacing the fuel filter. Back then I had retrieved dtc P1693. I now have the same DTC in memory and have no way of testing...
2001 Dodge Ram 1500 Truck 5.9L Poor Idle Quality, Surge, MIL Lamp on VIN: 3B7HF13Z01
Five K later still no MIL light however when the truck is started, after about 3-4 mins. the idle goes high-approx 1500 rpm. If the key is cycled (off, then restarted) idle is fine. This idle problem happens more times than not, however not all the time. Other...
2006 Dodge Grand Caravan SE 3.3L abs VIN: 1D4GP24R76
this van came in with a abs light on constanly and the driver says the abs will come on sometimes and vibrate i could only retrive one code 21fe - engine module missing and i cant seem to find any info on the code. in the data stream the lf vss is showing 0 th...
1999 Ford E-350 Econoline 7.3L Unknown VIN: 1FDSE30F6X
Vehicle came in misfiring...memory codes p1292..po113..po472 clear all codes and profromed a injector buzz test and code p1292 came right back, the right bank buzz test is stronger than the left.the p1292 represent a short to pwr or gnd for the left bank,so i ...
2001 Ford Windstar LX 3.8L Heater hose tube at intake manifold VIN: 2FMDA51401
Vehicle came in for coolant leak. Pressure tested and found leak at the Heater Hose Tube that comes out of the manifold near the Thermostat Housing. I contacted the local Ford Dealer and their parts illustrations are fuzzy, but are ordering what they think is ...
2006 Ford F-350 Super Duty XL 6.0L MIL Lamp on VIN: 1FDWF34P06
The problem is the code for the #4 glow plug circuit, PO674, returns immediately at each start. We've replaced the module, the harness to the #4 side, and the glow plug. What are we missing? We origionally replaced the module 2 weeks ago and the problem was so... Trouble codes: P0674
2008 Ford Ranger XL 2.3L Cuts out, Stall VIN: 1FTYR10D18
I'm in dire need of some help here, Vehicle came in and wouldnt accelerate past 35mph and would eventually cut off and quit. Come to find out the converter had come apart and clogged up exhaust. After installing new converters I have a very odd issue. Very r...
2009 Ford Escape XLT 2.5L electric power steering VIN: 1FMCU03789
As stated before, this car was in a major front end accident on the left front. The body man had to remove the underhood fuse box to replace the fender. The entire left front suspension was replaced. Upon startup the steering made a full lock turn to the rig...
2009 Ford Escape XLT 2.5L power tailgate latch VIN: 1FMCU03789
Hello. This vehicle was hit hard on the left front, requiring the fuse box to be removed for fender replacement. The power tailgate release does not work with the key fob or the button at the tailgate. THE GLASS PART WORKS WITH BOTH THE FOB AND BUTTON. Acco...
2000 GMC Yukon Denali 5.7L keyless entry VIN: 1GKEK13RXY
I have a 2000 Denali that came in with the radio and power windows inop. When this happened there was no power to the fuse panel, traced to faulty bcm. Replaced module and fixed all of the concerns, windows, radio, interior lighting, etc. Problem is that I am ...
2003 GMC Yukon SLE 5.3L Sunroof VIN: 1GKEK13Z13
HI All. Vehicle came in for Mil on and Sunroof open not closing. When the switch is operated there is slight movement from the sunroof in both directions.Scan test BCM =B1440.B2958,B2961,U1000.Monitor Data for possible intermittent power mode lost.Could not du...
2004 GMC C7500 Topkick C7C042 7.2L Abs VIN: 1GDJ7C1C14
I am at a loss with this truck. Code C0272 will not clear. All others clear. I have followed the diagnostic steps that I found on the internet and they led me to replace the EBCM module which has made no difference. I have no power to the relay that runs the b...
2002 Isuzu Trooper Limited 3.5L EGR valve VIN: JACDJ58X82
Hi everyone. Got this one kicking my butt and they only have a week left to get it inspected. Originally came in and had a Code P0405 EGR sensor A low. Found bad EGR valve, Replaced valve with a good used one and it came back with a P0401 insufficient EGR flow...
1993 Jaguar XJ6 Sovereign 4.0L Alarm VIN: SAJHW1748P
Ii have this xj6 driving me nuts. Mitchell is no help- The battery was drained do to light left on and now the alarm is going off and I cant get it to stop. The customer just got the car and does not have a remote for it. Can anyone tell me where the alarm con...
2002 Jaguar X-Type 3.0L Stall VIN: SAJEA51C32
I have not verified "double checked" the shops voltage drop checks or thrown a scope on the throttle yet however for the short amount time i was on the car i can verify that the throttle does a full sweep check when you key the car on. Under the results when y... Trouble codes: P1229 (p1224-), P1224 (p1582-), P1582
2002 Jeep Grand Cherokee Laredo 4.0L Cel VIN: 1J4GW48S32
We have this 02 Jeep Grd. Cherokee. Fault codes P0456 evap small leak, P0455 evap large leak. Vehicle passed smoke test not only for visual smoke but our Snap-On smoke machine's built leak meter shows no leaks (less than half the .020" minimum) but when we for...
2003 Lexus RX300 3.0L Srs
After replacing the evaporator core the air bag light came on.tried to clear codes with scan tool and manually neither worked rechecked all connectors all seem to be in correct stored are b0108,b1100 and b1141 not sure which code should be addre...
2007 Lexus GS350 3.5L Fuel smell VIN: JTHCE96S37
This car has been to 4 different shops trying to pin down a fuel smell. The dealer did the recall,another shop replaced all the injector o rings. I can smell the fuel but can not see it. The dealer told him he had a leak at the return hose and clamp. I don't s...
1959 Mercedes-Benz 220S 2.2L Cooling Systems
Several years ago we rebuilt a low mileage replacement engine for this car. The large coolant cover on the passenger side of the original engine was bowed out, we assumed from a huge amount of pressure. The rebuilt engine was assembled with a new cover as well...
2005 Mercedes-Benz CL55 AMG 5.5L idraulic pump VIN: WDBPJ74J95
Hello everyone, this 05 CL55 AMG have a vibration/muffled noise coming from the hydraulic pump.It can be felt thru the gear shift, and has a humming sound, not a metallic sound like a damaged pump. The pump vibrates loud when you put on the stethoscope on it. ...
2007 Mini Cooper 1.6L Draw VIN: WMWMF33587
Hi need some assitance from the mini techs out there. Having trouble dio-ing the draw. The car will go dead after sitting for a while few hours. This is not always the case it seems to be intermitent. However it is becoming more frequent. We have replaced the ...
2000 Oldsmobile Alero GL 3.4L cooling fan VIN: 1G3NL52E4Y
I let car warm up to 225 degrees looking at modis snapon scanner,at this degree water started pushing out of overflow tank, fans would not come on. If I try to work fans with modis scanner under functional test the low speed fans will come on when I command th...
2008 Other GM Diesel engine 4.7L Excessive Emissions VIN: 5B4KPD2548
vehicle will not regen cat at a stationary stop. the vehicle will regen when driven on highway. this vehicle is a fedex delivery truck which rarely goes on highway. we need a vehicle wiring diagram for the glow plug ckt. and any related testing procedures of t...
1996 Porsche 911 Carrera 4 3.6L all power windows VIN: WP0AA2996T
customer called about there power minutes of driving then everything works . they brought car in today but by the time the vehicle arrived it was working properly only system affected frontpower windows and sun roof operation could not do any testing at this t...
2000 Saab 9-5 Aero 2.3L Oil Pan VIN: YS3EH45G9Y
We have dropped quite a few 9-3 and 9-5 oil pans to de-sludge the oil pickup screen, so we thought we had this job down. However, this car's oil pan is shaped differently from the others we've seen, and it wouldn't come off the block. It broke free at the fron...
2006 Scion xB 1.5L MIL Lamp on VIN: JTLKT33416
After replacement of evaporative canister and filter, we cleared all DTC's and ran all monitors without any more DTC's or "MIL" problems but Customer reports the "MIL" came back on shortly thereafter and, upon his return, ALL of the original DTC's had returned... Trouble codes: P0012 (Camshaft position A timing over-retarded bank 1), P043E, P043F, P2401 (Evaporative system leak detection pump stuck off), P2402 (Evaporative system leak detection pump stuck on), P2419 (Evaporative system pressure switching valve stuck on)
2001 Toyota Tacoma DLX 2.4L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 5TENL42N31
We have this Tacoma that runs very poorly. We disconnected the MAF and it runs good. We replaced MAF with new one from Toyota with same result. I know there is the codes about the A/F sensor but I was thinking if a MAF is wrong would that throw the wrong info ... Trouble codes: P0141 (O2 Sensor Heater Circuit Fault B1S2), P1130 (A/F Sensor Circuit Range/Performance B1S1)
2003 Toyota 4Runner SR5 4.0L compressor VIN: JTEBU14R73
AC light flashing. Compressor will not operate. Clutch engages with 12v supply. Power thru pressure switch. AC relay test okay. Have done tests per Alldata diagnostics. Ran power to clutch. with engine running. Air works okay but AC light still flashes
2004 Toyota Sienna CE 3.3L Hesitation, Misfire VIN: 5TDZA29C44
Vehicle is giving me a little grief. It has a code for the B2S2, and the vehicle missing on bank 1 all cylinders. Checked fuel pressure and timing as well I replaced the bank 1, plugs seeing the customer was after replacing the converter and it now has a missf... Trouble codes: P0057, P0300, P0301, P0303, P0305
2006 Toyota Camry XLE 2.4L key fobs VIN: 4T1BE32K56
Hey All, This is ( mommies) car and she lives in another state and has been asking me for help. Both key Fobs stopped working at the same time. She replaced the batteries and then took it to her shop and they re-prgrammed them and they only worked for three da...
2001 Volkswagen Jetta GLS 1.8L MIL Lamp on VIN: 3VWSD69M41
smoked evap system at test port on right inner fender, found no smoke coming from anywhere. checked on top fuel tank under neath right rear seat. tested and smoked from evap lines at right rear of vehicle found no smoke coming from anywhere. performed ohms tes... Trouble codes: P0455 (large evap leak detected)
1996 Volvo 960 2.9L Air Flow/No Compressor VIN: YV1KW9609T
Initial Customer complaint was no fan operation.Replaced fan and fixed fan problem.Vehicle returned 3 days later with multiple problems,Clunking in dash on startup,Sometimes no compressor operation,Both Recirc light and a/c off light will flash in unison with ...
1998 Volvo S90 2.9L Cyl #6 VIN: YV1KS9600W
See Above history. Since I got this car back together it now has a dead miss on cyl 6. No compression. During leak down test found 100% into exhaust. Is it possible that the # 6 lifters are pumped completly up? All other cylinders are not affected. Am I possib...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2003 Acura MDX Touring 3.5L Check Engine Light VIN: 2HNYD18653
2000 BMW 328i 2.8L MIL Lamp on VIN: WBAAM5340Y
Smoke tested intake system and found the boot between the throttle body and the mass air flow sensor keaking. Replaced the boot. Thanks for the help. Trouble codes: P1188 (B1 s1), P1189 (B1 s2).
2001 BMW 740iL 4.4L Surge, Misfire VIN: WBAGH83461
Thanks for all the help! Crankcase vent on the back of the intake was the problem. (Alldata called it pressure control valve.) This also explained the mysterious white smoke on start up at times. As was indicated I found vacuum at the oil filler cap. I wa...
1985 Chevrolet C10 Silverado 5.7L starter
Found that owner had installed a later model flex plate which did not align with starter, installed flex plate from 83 chevy fixed problem
1996 Chevrolet C1500 4.3L Misfire
well thanks guys for your help after reading Henry from vermont's reply about the o2 sensor connectors being crossed I went straight to the o2 sensors and switched the connector from bank one to bank two and bank two to bank one. And just like that the truck s...
2006 Chevrolet C4500 Kodiak C4U042 6.6L No Start VIN: 1GDE4C1296
ok so we are pulling heads for inspection and replace head gaskets. i suspect that what i see in radiator is combustion crud. i dont know if inj have sleeves or not. dealer says no but post say yes. truck has been torn down some and put back together by seller... Trouble codes: P0097, P0230, P0463.
2006 Ford Fusion S 2.3L coolant fan VIN: 3FAFP06Z56
Every one was right on the money with it being a bad t-stat. thank you for the replies.
1998 GMC K1500 Sierra SL 5.7L No Start VIN: 2GTEK19R8W
Thanks for all the help. Removed injector unit and applied a fuel source and cranked it up to 125 psi, pulsed injectors and still wouldnt spray. Installed an updated injector unit and vehicle started right up. Also the engine was a new crate unit and reused cu...
2007 Honda Fit Sport 1.5L Hesitation, Misfire VIN: JHMGD37677
Sorry I haven't fixed this one yet, still waiting on customer. They've been living with the miss, and are reluctant to spend $500 more on new coils and the correct plugs. Many of you said the NGK or Denso plugs are required on this car. I didn't know these car...
2003 Kia Spectra GS 1.8L Electric Cooling Fans VIN: KNAFB161X3
I checked out the relays and all the wiring and it ended up being a bad ground. Thanks Mike
2007 Lexus RX350 3.5L abs VIN: 2T2GK31U57
Found the problem to be the stop lite switch. All wires to switch found to be in good shape. Thanks for all the replies.
1996 Mazda Miata 1.8L Air Bag VIN: JM1NA3534T
All research suggested that it probably needs a control module. When I talked to the customer about the expense of replacing the module it became apparent that he wanted the $5.00 magic wand repair.I charged him our basic diagnostic fee and launched him. Th...
1992 Mercedes-Benz 500SEL 5.0L oil pressure VIN: WDBGA51E0N
This is more a summary than a fix. The lower oil pan was removed a second time and clearances were checked on the rod and main bearings that were accesible and were ok. The pressure relief valve and the oil pump were checked again. At this point the customer d...
1993 Mitsubishi Eclipse GS 2.0L steering wheel VIN: 4A3CF44E2P
Thanks for all the replies.There was an overwhelming opinion that the cv axles were to blame and even though I could not see a problem with the axles I took a chance.The car has been on the road for 2 weeks now so Im sure that took care of it.
1990 Nissan Stanza XE 2.4L No Start VIN: JN1F421P8L
Thank you to everyone who replied. The first reply nailed it on the head. I switch the fuel lines when I was installing tne new engine(explains the slightly high fuel pressure). after I installed them correctly fired right up. Aagain thank you
2002 Nissan Maxima SE 3.5L Battery VIN: JN1DA31D42
Thanks to all who replied on this vehicle. it is now fixed and confirmed. this car had a 400 ma draw most of the time and saw it go to 1.2 amp once and this is when the battery died over night. had removed all fuses and relays and still had 400ma draw. removed...
2002 Nissan Altima 2.5L No Shift VIN: 1N4AL11D12
Hi There, Sorry I took too long, but after 3 Trannies, and doing the same problem (not moving) I decided to take one more chance and installed another one... problem solved!!!the problem were the trannies, they all were not good, I found a 4th one, installed i...
2005 Nissan Xterra Off-Road 4.0L overdrive VIN: 5N1AN08UX5
Did not find any coolant in the transmission, this unit was rebuilt by one of our sublet transmission rebuilders, unknown if problem was there before. At this time the customer has elected to drive vehicle and not spend for additional testing if required out ...
2006 Other European C4 1600cc gas 1.6L auto box VIN: VF7LCNFUF7
2000 Toyota Camry CE 2.2L Cuts out, Stall, MIL Lamp on VIN: JT2BG22K5Y
Replaced the cam sensor and so far all is well vehicle not acting up. Trouble codes: P0340 (Cam sensor performance).
2001 Volvo V70 X/C 2.4L lower brake lights VIN: YV1SZ58D01
Thaanks for the tips but the recall is for some 2002 model years. Customer refuses to spend time and money fixing it.
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