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Prev Professional Automotive Repair Technical Discussions for April 26, 2013
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Open Help Requests for All Makes and Models
Help Request Answers
2001 Audi A6 Quattro 2.7L brake/parking lights VIN: WAUED64BX1
veichle came to shop,customer complaint was while applying brakes warning tone heard and message in driver on dash lights up.unfortunatlly,message center is unreadable.during inspection,when applying brakes parking lights would light brake a...
2003 Audi Allroad Quattro 2.7L Engine VIN: WA1YD64B13
I can see a cracked hose from turbo going to intake has been black taped for a crack, but don't know how to test for the P1557, check the N57 charge pressure control solenoid valve? I can see O2s warm up real slow and front O2s respond very slow? MAF sensor ha...
2001 Chevrolet S10 4.3L Misfire VIN: 1GCDT19W81
The truck came into my shop about a month ago missing really bad.After checking the codes I found P0300.I replaced the plugs-wires & crank sensor.When I took the distributor cap off to give it a look I found that it was full of brass shavings so I replaced the... Trouble codes: P0300 (Multiple cyl misfire)
2008 Chevrolet Colorado LT 2.9L Hesitation, Cuts out VIN: 1GCCS19988
This porblem is very intermittant - once every so often, when it happens the vehicle loses throttle response. They have to turn the key off and back on, then everything is working again but the check engine light stays on due to the code. I have not been able ... Trouble codes: P2135 (throttle position sensor 1-2 correlation)
2008 Dodge Caliber SXT 2.0L rear wiper VIN: 1B3HB48B28
Rear wiper would park anywhere on the window. it has only one run position that is intermittant. replaced motor and now have the same problem. I cant get a full wiring diagram from AllData but it looks like the wiper switch inputs to a module which tells the w...
1989 Ford LTD Crown Victoria LX 5.0L No Start VIN: 2FABP74F2K
Ok here we go, this car was town in with a crank no start concern. We first checked fuel pressure and found 0psi present. Next we checked the fuel pump voltage while cranking, found 12.3V present. We found the fuel pump inop. WE continued and replaced the fuel...
2000 Ford F-550 Super Duty Lariat 6.8L Misfire, No spark bank 1 VIN: 1FCNF53S8Y
Ford motor home chassis. 6.8 v10. Ran good when last used, now it has no power. Low manifold vacuum at idle/2500rpm, 15-17 in. Even compression banks 1 and 2. Injectors are firing. Bank 1 o2 stuck low, (200mv. Bank 2 switching good. Adding propane to throttle ...
2003 Honda Accord EX 2.4L brakes VIN: 1HGCM72623
Car has ABS. No light no codes. Low spongy pedal. changed front pads, turned the front rotors,they are in spec for thickness with .001 runout on all 4 wheels. All new rear rotors pads calipers slides and brackets. Calipers are on the proper side with bleeders ...
2008 Honda Odyssey EX-L 3.5L b1241 VIN: 5FNRL38738
A/c relay comes on for 1 second. Has no blower no cooling fans & no compressor engagment. Check wiring at resistor & control module blower runs when you ground blue and red wire at blower motor. Any help would be great.
2007 Hummer H3 3.7L Wipers VIN: 5GTDN13E07
When starting wipers go on for a couple of wipes. replaced wiper motor and still does it. Inspected connections at BCM and wiper motor. Tested ok. Wondering if BCM had any problems causing this
2002 Jeep Grand Cherokee Sport 4.0L MIL Lamp on VIN: 1J4GW38SX2
Sets codes P0455 & P0422 (evap leaks). I have checked all hoses and connections. Purge solenoid works. Can hear the leak detection pump (LDP) click when commanded with Modis. I don't see where I can close the LDP to seal the system, so I plugged the vent hose ... Trouble codes: P0455 (Evap leak), P0422 (Evap leak)
2003 Land Rover Freelander SE 2.5L ECM Fuse VIN: SALNY12263
Vehicle was towed in it died on the road. Has a blown fuse # 2 in underhood fusebox.This fuse goes directly to ECM at connector 604 and to a header. If I un plug connector 604 from ECM it does no trip the circuit. Im thinking it could only be the ECM but want ...
1995 Lexus ES300 3.0L Unknown VIN: JT8GK13T5S
I checked alternator out put., good 14.6 volts. I was suspicious of a drain in system. Pulled fuses, when the efi fuse is pulled, 45 ma drain (normal). There is something in engine management system causing drain. Accessed computer, and when e7 or e10 connecto...
2005 Mazda 6 S 3.0L oil pressure VIN: 1YVHP84D15
vehicle came in with engine noise was found to have spun bearing.replaced with rebuilt engine (everything new).started engine and oil light remained on shut down after 15-20 seconds.a mechanical gauge was installed to check pressure,when started it went slowly...
2004 Mercedes-Benz C240 2.6L transmission oil cooler pipe VIN: WDBRF81JX4
Front universal joint on front driveshaft came apart and driveshaft damaged the passemger side transmission oil cooler pipe. We have to replace the pipe and wanted to know if there is any trick to getting old pipe out & new pipe in without damaging pipe (bendi...
2002 Mitsubishi Montero Limited 3.5L engine VIN: JA4MW51R82
Customer stated that oil light started to flicker then engine developed a lower engine knock. I partially drained the oil which had a shiny film which led me to think the bearings were shot. My question is the 3.5 montero interchangeable with a montero sport 3...
2007 Nissan Maxima SL 3.5L Hesitation, Surge, Cuts out VIN: 1N4BA41E87
When cold start on acceleration the rpms will go up to about 2,000 rpm and just stop there. When you push on the pedal it will not accelerate above that for the first few miles then all of a sudden it will accelerate and perform with no problems. We replaced t...
2004 Oldsmobile Alero GL 2.2L Engine VIN: 1G3NL52F54
Hello all, I need some help here I have this car that sometimes will not start , then if you hold the pedal to the floor it will start but very sluggish , fuel pressure is good , the problem I think is that it is getting too much fuel and not enough air, whe...
2011 Ram 1500 Laramie 5.7L Right Rear Wheel Speed VIN: 1D7RV1CT4B
Customer came in with traction light, chk engine light, ABS light, and svc 4X4 message on dash, and PS inoperative. Replaced Pwr Steering pump & that works now. When right rear speed sensor drops out, then disables 4x4 and sends message. Communication codes U1...
2003 Saab 9-3 Linear 2.0L Programming VIN: YS3FB49S63
What happened is we didnt upgrade our tis web because of the car line going under. Well all of the sudden we seem to have every saab in the country at our door. I went to buy a year subscripsion and we couldnt find our pass word. So we sent for a password rese...
2011 Saab 9-3 Aero 2.0L fuel gauge/TCS light VIN: YS3FA7CY6B
This car reads 0 fuel (MIU says no fuel and guage needle moves but only slightly. Fuel pump/sending unit replaced previously by others... tested fuel sender and voltages to and from sending unit and T8... all appear to be appropriate but no guage movement.Tech...
2005 Subaru Outback i 2.5L Surge VIN: 4S4BP61C65
This is my personal car. Vehicle surges only when the cruise control is on. Once the cruise is cancelled or turned off the surging stops. The surging is very noticeable to the extent that passengers notice even if they are unaware the cruise is turned on. The ...
1994 Toyota Pickup DLX 3.0L MIL Lamp on, lacks power VIN: 4TAVN01D9R
Fellow techs, we need some Toyota help. Our shop installed a re-manufactured engine and ever since we can not get the check engine light out. It keeps setting code 52 knock sensor. We installed new sensor and harness (both OE). The frequency is 2000HZ to 17000... Trouble codes: 52 (Knock sensor or circuit)
2005 Toyota Sienna XLE 3.3L System VIN: 5TDBA22C85
Hello everyone, this van came in with inoperative A/C. We checked the system for pressure and found nothing in the system. System held vaccum for 30min. Replaced the shrader valves and filled with the required amount of refrigerant and 4oz of dye, tested line ...
2002 Volkswagen Beetle GL 1.8L fuse box connection VIN: 3VWDD21C32
Here is the deal.We have this beetle that overheats the cable connection at the fuse box on top of battery that goes from fuse at batt to cable that goes to batt+ of alternator.Any ideas why this gets hot like a bad ground somwhere.Did perform a voltage drop f...
2004 Volkswagen Passat GL 2.0L no power VIN: WVWME63B24
thanks to all in advance. This passat is giving me fits. originally came in for no oil pressure and no power. found oil pump chain came apart and turbo grenaded. also noticed super hard brake pedal. replace oil pump/gears, turbo and oil lines and tandem pump. ... Trouble codes: P0299 (turbocharger under boost 16683vag)
2005 Volkswagen Touareg 3.2L Suspension Compressor VIN: WVGLG77L15
Vehicle has Code 01772: implausible signal from pressure sensor G291. Pressure in group 6 field 2 builds to approx. 12.5 bar, temp. in field 1 goes to 230C, then compressor shuts off. In approx. 6 seconds pressure in field 2 goes to 0 bar. No leak at the air b...
2003 Volvo S60 2.4T 2.4L Fuel VIN: YV1RS61TX3
Good evening. Purchased this vehicle thinking it just needed a fuel pump. No noise from tank. Vehicle ran with starting fluid. Checked power at under seat plug and got 12 volts. Thought pump was culprit so replaced. Same condition persists. This vehicle has a ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1997 Acura EL 1.6L horn VIN: 2HHMB4647V
Thank you for 11 people who replied to my post,IATN is the best resource for our business.I waited a week before deciding to close my post and so far customer is happy that her horn does not act up any more.You directed me to the proper fix for this problem b...
2004 Audi S4 Avant 4.2L MIL Lamp on VIN: WAUPL68EX4
Thank you for the quick response. Both suggested oil pressure problem. We cleared the codes yesterday and drove the car for 3-4 miles with no trouble. This morning we started the car and the CEL came on immediately along with terrible engine noise!!! Shut eng... Trouble codes: P0011 (Intake cam advanced bank 1), P0021 (Intake cam advanced bank 2).
2002 Buick Park Avenue 3.8L oil press.indicator VIN: 1G4CW54K32
First off,thanks to the 15 members who took the time to reply to this request. The vehicle is fixed. The almost unanimous conclusion was that it was a defective oil pressure sensor. So rather than spending a bunch of time trying to trace down the electronics o...
1995 Chrysler LeBaron GTC 3.0L Lift Cylinder VIN: 1C3EU453XS
Well, as everyone said, main problem was gutting the interior. Remove rear seat back (what a pain) and bottom. Then rh rr inner trim panel, then get into that area to work. Ouch! Needed gloves. Release the latches at the w/s bow to take pressure off, then it's...
2008 GMC Sierra 2500 HD SLE 6.0L Fuel tank won't fill
Alot of great information here guys thanks. I did check the charcoal canister for being plugged,and it is not at all, and I did swap the vent valve with another known good part from a different truck in our fleet. My next step is to swap fuel tanks with the sa... Trouble codes: P0446 (EVAP control vent circuit).
2005 Kia Spectra EX 2.0L Mechanical VIN: KNAFE12165
Actually the fix was simple. the problem I was having was getting the throw-out bearing to snap into place on the back side of the pressure plate. I actually had to pry on the release (slave cylinder) handle with quite a bit of bumping action to get it to seat...
2001 Lexus RX300 3.0L MIL Lamp on VIN: JTJHF10U21
as most of you suggested, replacing the CAT's with oem ones was the solution, but customer declined the repairs because of the cost. thanks everyone who responded. Trouble codes: P0420 (Cat below effeciency bank 1).
1999 Mercedes-Benz E300 3.0L Injector pump. VIN: WDBJF25H8X
To all the techs who responded, thank you very much for taking time to help. I was able to order the rubber seal from the dealer using part # supplied. Also it was pretty straightforward to remove the plate from underneath, no more leaks, and a happy customer.
2004 Mercedes-Benz SL500 5.0L top operation VIN: WDBSK75F84
Thanks Guys for the replies! I never open those W230 manually,that why I rather get some infos before I start with. Here's what we've figure out: 1.Open the trunk with mechanical key and release the pressure at convertible top relay with 6mm hex 2.Take off ...
2010 Mercury Milan Premier 2.5L Airbag Light VIN: 3MEHM0JA5A
well its fixed, really wanted to thaks for all the helpfull info to get me on the right track and the fix. The fix was the wires under the seat witch dan had talked about with other techs on here. Thanks again and god bless...
2008 Nissan Frontier LE 4.0L anti-slip VIN: 1N6AD07WX8
We sent it to Nissan to calibrate the steering angle sensor. its fixed now.
1992 Saturn SL2 1.9L No Start VIN: 1G8ZK5477N
We replaced the crank sensor and next day the vehicle would not start and found the ignition module to be bad thanks guys for all the replies. Trouble codes: 26 (Egr).
2001 Toyota Prius 1.5L Multifunction Display and Radio VIN: JT2BK12U71
Thanks to all that replied. What I didn't initially realized was the the 10 amp 'ACC' fuse was missing. I found out that the customer had removed it, but not replaced it. I was only looking at the present fuses for an open, not an altogther missing fuse (silly...
2007 Volvo XC90 3.2 3.2L Engine VIN: YV4CZ98277
Thanks Bruce and John(Pennsylvania). On the 3.2 motor, the actual oil trap/PCV system is on top of the motor in the back. It's out of black plastic and is called a valve cover in VIDA. But when the part is delivered, the VOLVO invoice calls it an oil trap. The...
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