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Prev Professional Automotive Repair Technical Discussions for December 10, 2014
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Open Help Requests for All Makes and Models
Help Request Answers
1998 Audi A4 2.8L Backfires out intake VIN: WAUED28D3W
This is a motor change from a 99 Audi. It is an AHA motor in both cases, but I got this car dropped off missing parts and not running. The timing belt was off a few teeth, but reset that with the factory crank and cam lock tool. I have verified the timing chai...
2004 BMW 745Li 4.4L cam gear VIN: WBAGN63594
Hey guys,i need torque spec for the cam sprockets on this n62 motor.I have Mitchell on demand, the only # they give is 8 NM I called the support line and of course they had no clue. By cam sprockets I mean cam adjusting unit on the front of the exhaust cam lef...
2005 BMW 325Ci 2.5L monitors VIN: WBABV134X5
The customer has never been able to run the monitors in this car to get it smoged. After the repair we can get all but 3 monitor to run it will not run the cat, o2 sensor and the evap will not run no matter how far we drive it. Does anyone know if this car nee...
2010 BMW 750Li xDrive 4.4L Misfire VIN: WBAKC8C55A
Hello Techs., This twin turbo V-8 is setting code 140301 (P0303), customer doesn't notice anything out of sorts when it happens. Numerous posts mention injector & carbon build up issues with this vehicle, however with BMW'S ignition coil historys, does this ve... Trouble codes: 14030
1996 Buick Regal Custom 3.8L Locks, Dome Light VIN: 2G4WB52K0T
Client just purchased this Regal, so I have no history on it. The main concerns are, the dome light does not operate, either from the door switches or the headlamp rheostat. Found constant power at both terminals in the housing, does not time out or change wit...
2006 Cadillac CTS 3.6L Fuel Pump control circuit VIN: 1G6DP57706
This is my first time requesting tech help. I have this cadillac with a complaint of MIL on but no driveability issues. The DTC returns, when the key is cycled several times. I first swapped relays around but to no avail. I can command the fuel pump control ci...
2009 Cadillac CTS 3.6L center panel controls VIN: 1G6DT57V29
To all gm/cadillac techs help!. 09 cady cts came in with water leak from r/s sunroof drain which we repaired. Customer also complained that the center control panel, (center stack) is inop. Radio ,hvac, navigation telescoping display have no control although d...
1992 Chevrolet C1500 454 SS 7.4L Hesitation, Surge, Cuts out, Stall VIN: 1GCDC14N0N
customer complained his truck would pop and fart when hot took throttle body in to dr injector they were lean so figured probly have it cleaned them flow test great. week later customer says still does it hot went and got it no issues but I put a new coil in i...
2001 Chevrolet Tahoe 5.3L Unknown VIN: 1GNEK13T51
Hi every body out there. I have this car for two mounts, I couldn't figure out really what's going on with this car, makes me crazy, car drains battery in 48 hours if I don't disconnect body control module and cd player and amplifier , I got new body control m...
2002 Chevrolet Silverado 2500 6.0L lamp, front brakes VIN: 1GCGK29U32
Another fine mess...customer bought this truck as a "fixer-upper", and have we ever.all new brake plumbing, power steer pump and lines,exhaust manifolds, and on and on. Customer drove truck for a month, called stating front brakes hung up.dropped it off at end...
1999 Dodge Ram 2500 8.0L battery VIN: 3B7KF23W4X
Truck has 400 milliamp draw...removing IOD fuse,(#12), kills the draw. glove box, under hood light ,cargo lights dome lights ,radio disconnected...still has draw. Figured seat belt control timer...unplugged it...still has draw...baffled!
2004 Ford F-350 Super Duty Lariat 6.0L Drive-axles VIN: 1FTSX31P04
Hi, this truck has a low speed 10-30mph growl noise in front. Only in 4wd with hubs locked, (in 2wd no noise) on slight turning and slight acceleration you hear an additional rotational thumping noise...than as you drive a growl noise. low speed lugging brings...
2005 Ford F-150 FX4 5.4L No Start VIN: 1FTPX14575
this car is a no start cranks ok. it was towed in no start. found left timing change came apart. so I replaced motor with a reman. I have injector pulse and fuel pressure no spark. I ohmn all wires to ecm from just about every sensor. check all power and groun... Trouble codes: P1288
2008 Ford F-450 Super Duty XL 6.4L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FDXW47RX8
Alright ford diesel techs bear with me new to diesel world. Vehicle brought in on truck. Complaint is excessive smoke and misfiring. Quick visual inspection showed that crankcase was overfull and looks like fuel is getting mixed in the oil. Used scan tool and... Trouble codes: P006B, P0234 (Turbocharged engine overboost condition), P0684 (Glow plug control module to pcm), P2452 (Dpf pressure sensor circuit a), P0266 (Cylinder 2 contribution/ balance fault), P0302 (Cylinder 2 misfire detected)
2009 Ford F-150 FX4 5.4L MIL Lamp on VIN: 1FTPX14V09
Getting codes P0130 and P0150 upstream oxygen sensor codes from KOER test and on roadtest. There is not the usual upstream oxygen sensor voltage PID to monitor. What I got on my Maxidas at idle was -211uA and -316uA for the front sensors. From the reading I've... Trouble codes: P0130 (Oxygen sensor circuit B1S1), P0150
2010 Ford F-150 XL 4.6L Unknown VIN: 1FTEW1C8XA
Hello again to everyone. I am trying to help my Napa store manager out with his "keep you awake @55mph" Ford F150. He bought this truck used and it has a serious vibration coming from the rear of truck. Worse when cold. The dealer he bought it from replaced ax...
2011 Ford F-150 XL 5.0L epass gear VIN: 1FTFW1EF9B
-Original Observation was hard steering/steering locked -original codes + "service steering" indication 1. U0428 invalid data from steering column control module 2. U 3000:96 SCCM internal failure 3. C1963 stability control inhibit warning - access SCCM vi...
2006 GMC Sierra 1500 WT 4.3L 1-2 Shift Late VIN: 3GTEC14X66
Customer requests for transmission maintenance service as the tranny is taking longer time to shift from first to second gear, the rest of shifting is normal. The fluid was brown. We flush the fluid and replace filter and gasket. The problem is not correct yet...
2009 Honda Accord EX 2.4L No Start, Hesitation, long crank VIN: 1HGCP26769
Accord 09 2.4 very long crank and hard to start cold. Checked fuel pressure ok, fuel quality ok, ect and iat parameters ok. Cleaned throttle actuator, once engine started a bit of smoke in exhaust like flooded engine. Once started run like a new. Let it cool d...
2006 Lexus GX470 4.7L exhaust leak VIN: JTJBT20X06
this one is for the lexus techs or ? need to no how to remove pass exhaust service info in all data.have a leak,not sure if manifold or air tube? although its all one unit.any shortcuts? alldata says 10 hours.possible engine r&r ??thanx in advance.
1979 Mercedes-Benz 300CD 3.0L No Start VIN: 1231501200
This was towed in as a crank no start. Weather when it wouldn't start was 20-30 degrees F. It is now 60 degrees F. Glow Plug: This glow plug system is hooked up in series with the loop coils between plugs. All loops are hot to touch and carry battery voltage a...
2000 Nissan Frontier SE 3.3L Unknown VIN: 1N6ED26Y1Y
hey guys thanks in advance I have a 2000 Nissan frontier with a 3.3l that im having trouble with it came in for no start I have had a lot of these trucks with bad distributors but when I went to check it there was no ground flashing to make the coil fire I sta...
2003 Nissan Altima S 2.5L Poor Idle Quality, Surge VIN: 1N4AL11E63
vehicle came in for a simple fuel induction service... lol while vehicle was getting service done it began to surge up and down with the idle. i immediately turned off the car unhooked everything and started vehicle. the idle was still surging. i have done the...
2007 Nissan Quest SL 3.5L 1st and 2nd gears VIN: 5N1BV28U37
There was a noise in the transmission when moving slowly. We checked with a stethoscope while driving on the lift and heard the noise coming from the differential area. We removed the transmission and found that the differential assembly was very rough. The be...
2002 Saturn SL1 1.9L multiple VIN: 1G8ZH52832
The car is having long shifts and acting as if it doesn't have enough power. At highway speeds once it shifts to OD it losses speedand kicks back down to 3rd. Had DTCs p0410 Secondary Air Injection System Malfunction [...] Emission Control System Ve...
1994 Subaru Legacy L 2.2L No Acceleration VIN: 4S3BC6333R
Good Afternoon. This vehicle has me pulling what's left of my hair out. This car 99% of the time, will not accelerate. You open the throttle and it just bogs down. If you feather the throttle, Sometimes (Rarely) it will accelerate and operate normally until yo...
2001 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K11
I got this camry that keeps putting a code po440 i smoked tested it no leaks i tested the vsv under rear of car it works outside of car i tested the other vsv on air filter box they all seam to clip but evryone seams to think the red vsv valve is probably bad ... Trouble codes: P0440

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 BMW 528i 2.8L Radio and suspension VIN: WBADP634XY
The car left the shop last week, when it returns I will change the ignition switch and update the answer once I hear back from the customer. Thanks for the help!
2004 Buick Rendezvous CX 3.4L po300 mifire VIN: 3G5DA03E04
testing confirmed the headgasket required replacement. customer declined. thanks everyone for your help.
2001 Chevrolet Cavalier 2.2L No Start VIN: 3G1JC52441
2011 Chrysler Town & Country Touring L 3.6L Poor Fuel Economy, smells fuel VIN: 2A4RR5DG1B
Problem was hard to find. Injector only leaked when it was cold when it warmed up it sealed. We found a cracked injector and replaced it. Problem was solved. Thanks for all your help.
2006 Ford Fusion SE 2.3L Poor Idle Quality, Surge VIN: 3FAFP07ZX6
I was unable to get vehicle back in for further testing. Below are the suggested things to check from Techs that replied,,, Kenneth from California Nov 15, 2014 9:06:26 AM Sounds as though the knock sensor is hearing a noise that is being interpreted as de...
2009 Ford Flex SEL 3.5L Poor Fuel Economy, MIL Lamp on VIN: 2FMDK52CX9
Further testing on effected system with a better understanding from 1 or more replies, led me to a defective VCT actuator. Replaced and both bank 1 and 2 cams are equal with closed loop operation. Thank you to those who helped and that gave advice. Merry Ch... Trouble codes: P0020 (VCT Bank 2 Cam actuator solenoid open circuit).
2000 Honda Accord EX 3.0L Misfire, lack of power VIN: 1HGCG1658Y
ok thank you to all that helped. I found no backpressure in the exhaust but after doing a cylinder leak down test found that 4 out of the six cylinders had really bad leaks at the rings. and I also found a loose crank sensor bolt which might have been the caus... Trouble codes: P0300.
1999 Mercedes-Benz CLK430 4.3L immobilizer VIN: WDBLJ70G2X
After a week and a half of no failure, I decided to put it back together. started car, worked ok. Flopped passenger floor board panel back into place (was laying horizontal), no start. Flopped it up and down a couple more times, found the fault was present ...
2006 Nissan Quest SL 3.5L Nats Theft VIN: 5N1BV28U96
customer on fence about repair-looks like we need to tear down to inspect timing chain-shows good on scanner data for cam timing??? otherwise can not find any electrical issues causing no start-if we do repair i will update this fix-thx for the help
2006 Toyota Prius 1.5L hybrid battery pack VIN: JTDKB20U66
I want to thank every one that responded to my help request. I learned quite a bit about hybrids. It came down to needing new HV battery's. It was just dumb luck that it happened when we had the vehicle. The customer was very under standing and thanked us for ...
2006 Volkswagen Beetle 2.5 2.5L Warning Chime VIN: 3VWRF31Y46
We received several responses on this one indicating that there may be a problem with the a door latch microswitch. We checked them using our VAG com and there is no problem with them indicating correct door open-close position and we ruled that out. We have ...
2005 Volvo XC90 T6 2.9L rear differential VIN: YV1CZ91135
This has been an interesting system to research, to say the least!!! Customer has declined any repair at this point, but there are many things that should be serviced as a preventative measure. The synthetic gear lube in the diff part can be sucked out and re...
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