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Prev Professional Automotive Repair Technical Discussions for June 5, 2014
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Open Help Requests for All Makes and Models
Help Request Answers
1989 Acura Integra LS 1.6L Stall VIN: JH4DA1751K
Hi techs, this would my first time attempting to pull codes manualy for the check engine light, this car belongs to a close friend so I cant say no. The car will start and run as long as the check engine light is "not on" it will run for a few min. Then light ...
2003 Audi A4 1.8L a/c VIN: WAUJC68E13
Hey guys, i have this A4 here and I've never seen this problem, but then I am still pretty new at this. The A/C blows nice and cold for about 15 to 20 minutes then starts getting warmer. I have these codes; -01842 - potentiometer in V159 - G221 -01274 - motor ...
2003 Audi TT 1.8L Obd 2 plug VIN: TRUTC28N63
Hello, this car came in for oil change, tried to reset the service light using the HEX+CAN ross-tech software, won't reset. I found won't communicate with any of the modules on the car, my generic tester won't communicate either. Pin 4 at the plug is good grou...
2007 BMW 328xi 3.0L water pump VIN: WBAVC73517
Can not to come up with a good wiring diagram or how the pump is controled.Water pump not running. pin 3 at the pump is 0 volts and i believe it is from the dme. what should I see with key on eng off? or engine running ? I know these have pump trouble but pin ...
1987 Buick LeSabre Custom 3.8L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall VIN: 1G4HP5130H
This vehicle bogs down and chugs on accelearation. This a customers mom's car.the car is running rich. No doubt. It looks like it has had a reman maf sensor put on and a crank sensor. Values according to alldata are double what they should be for maf. Checked ... Trouble codes: 34 (Mass air flow), 13 (Oxygen sensor)
1988 Chevrolet C1500 Cheyenne 5.7L Cuts out, Stall VIN: 2GCEC19K5J
this one is getting me mad, vehicle runs great in shop and at idle, as soon as I back it out of shop and put it under a load it dies and wont immediately restart, found that I am losing injectors some how, replaced ecm with test ecm, found wires to injectors s...
1999 Chevrolet Express 1500 5.7L front coil spring VIN: 1GBFG15RXX
Sorry this is going to be long but if someone has access to GM service info and exact direction front coil springs oriented that would help since Mitchell and Alldata conflict! I have this 1999 express 1500 conversion van that although high miles has been ver...
2011 Chevrolet Aveo5 LS 1.6L coolant recovery bottle
Hello GM Chevy techs I have the above vehicle,first time I have worked on the vehicle. I'm doing a 60k service according to the factory owners manual. It only requires coolant change at 5 years 150000 miles Im getting a small to moderate amount of a yellowis...
1993 Dodge W250 5.9L alternator VIN: 3B7KM23C1P
The charging system is not working.It has battery voltage at the big terminal on back of alternator. With key on or engine running there is no voltage at either small terminals on the back of the alternator. Checked for voltage at the generator terminal on the...
2004 Dodge Durango Limited 5.7L engine VIN: 1D4HB58DX4
Very loud lifter type tap at startup-diminishes slightly after a few seconds-Nearly goes away after idling for 15-20 minutes-shut off engine and restart immediately and noise is as loud as before with same-have removed valve covers and can see 6 new pushrods a...
2009 Dodge Grand Caravan SE 3.3L power liftgate VIN: 1D8HN44E29
Power liftgate won't operate. Overhead console and rear switches open and close on data list. Fully open switch remains closed regardless of liftgate position, postion switch 1 and 2 fluctuate between open and closed.
2009 Dodge Ram 1500 Sport 5.7L Accessories VIN: 1D3HV13T79
Thanks in advance for the help. We have a Factory Navigation System the customer says starts out working properly, but the voice eventually turns to garble after using it a bit. I am assuming it is the actual Navigation system, is there an aftermarket Navigati...
1998 Ford Econoline Super Duty Custom 6.8L Reservior VIN: 1FDXE40S8W
Hope this request doesn't sound too stupid, but here goes. This E450 used to be a bus. Vehicle overheats. When adding coolant, it leaks out of the reservoir from the bottom. Removed reservoir to inspect and found that someone had drilled a ground wire into the...
2000 Ford Ranger XL 3.0L Unknown VIN: 1FTYR14V6Y
We have a difficult noise we are trying to diagnose. This ford ranger has a very distinct noise, customer states he hears driving on the highway at times but mostly when shutting the truck off. Its a very loud rubbing noise or rusted pivoting noise,or bad fan ...
2006 Ford Fusion SE 3.0L compressor VIN: 3FAFP07116
ok, so this 2006 ford fusion came in with a complaint of a/c bowing warm even when charged. so i pulled all the R134-A out of the system, and it only had .51 pounds. I put the correct amount of 1.31 pounds in it, and still no engagement of the clutch. So then ...
2010 Ford Escape XLT 3.0L Ac VIN: 1FMCU0DG9A
I am pretty sure I need to replace it all but I am looking for experience on this problem on this vehicle.
2003 GMC Yukon XL 1500 Denali 6.0L Abs System VIN: 1GKFK66U73
This vehicle had abs issues that made the abs light, brake light and the t/c light come on with the indicator saying (service stability) right when you cycle the key and no codes present, so i replace the abs module send vehicle out to get it programed and now...
2005 Honda Odyssey EX 3.5L Steering Wheel, VIN: 5FNRL38455
The complaint on this vehicle is steering wheel shaking while braking at or above 55 mph. I test drove the vehicle and felt what appeared to be warped brake rotors in the front. The brakes were inspected and found to be at 2mm and the rotors near minimum spec....
1991 Jaguar XJ6 Sovereign 4.0L Hydraulic leak VIN: SAJHY1747M
It has a leak in either the power steering or hydraulic suspension system. We are trying to locate illustrations of the parts. Our local Jaguar dealer has sent us pictures that don't look anything like the system we have. Does anyone have a contact for old Jag...
2000 Mercedes-Benz S500 Guard 5.0L control arm VIN: WDBNG75J5Y
Thanks for your help, I need some advice from any Mercedes techs who have done this. I don't see very many Mercedes but we're trying to help this customer out. This car came in with a clunking noise from the right front. Brought it back to the shop and it look...
1997 Mercury Tracer LS 2.0L Engine Vibration VIN: 3MELM15P6V
After the tune up service and timing belt the customer complained of a vibration felt during idle, vehicle not moving. The car has a noticeable vibration thru the body that can be felt at idle speed. There do not appear to be any other drivability issues. The ...
2000 Mitsubishi Eclipse GT 3.0L reverse VIN: 4A3AC54L5Y
This Mitsubishi has a harsh engagement into reverse only. No trans related codes. I have cleaned the throttle body and tried resetting with battery disconnect proceedure. Seems to be worse after warmed up. Almost feels like a bad mount but they seem ok. The RP...
2002 Mitsubishi Montero XLS 3.5L Engine VIN: JA4MW31R22
Good morning Mitsu masters, thank you in advance for your wisdom. This Montero Sport LS was arrive to the shop not running and not communicate with any control module with the scanner. The alternator new replacement. Apparently, previous alternator be charging...
2008 Pontiac Grand Prix 3.8L No Start VIN: 2G2WP55228
Hey guy i need help! This is a tricky one. Came on hook no start. First thing we did chagred the bettery and tried to start, but no start. Scanned for code and too many codes came up. (p0030,p0036,p0201,p0202, p0203,p0204,p0205,p0206,p0412,p0418,p0443) all the... Trouble codes: P0030, P0036, P0202, P0203, P0204, P0205
2003 Saab 9-3 Linear 2.0L xenon headlamps VIN: YS3FB49S43
Car came in from body shop headlamps not working. Headlamp assemblies had been replaced with used LKQ headlamp assemblies. Cleaned up some wiring butchery. Xenon headlamps stay on with key on, irrespective of switch position. After starting car, within 20 seco...
2007 Saturn Aura XR 3.6L Misfire, MIL Lamp on VIN: 1G8ZV57757
GM tech, please help on this baby, install scanner, p0300-misfire, road test & verify engine has a light misfire on #1,3 & 5 cylinder at light throttle only at 1500rpm [...] 2000rpm, check fuel trim & oxygen sensors reading, all within spec, sway cam sensors & so... Trouble codes: P0300
2010 Volkswagen Routan SE 3.8L MIL Lamp on VIN: 2V4RW3D14A
ok, the issue is I will be driving along and the dash will start to flicker, then it cuts out and guages go dead and come right back at the same time the abs and esc light flash(then set the low voltage codes).When it acts up i can induce a load like the windo... Trouble codes: P0562, P2101, P2504, C2101, C2100, B210D
1998 Volvo V70 2.4L Overheating VIN: YV1LW5580W
Ok guys!!! came in hot but not overheated.. 255 degrees.. Upper hose hot, lower hose cool,fan running,cool air from cooling pressure on system..not low on coolant. Replaced thermostat. Same thing. Ok water pump impeller right.. Wrong. Tore down the timi...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2003 BMW 745Li 4.4L inop fan VIN: WBAGN63433
Many thanks for your replies- the fan is duty cycle controlled- big power, big ground constant. Separate circuit in fan assy responds to duty cycle to control fan speed. Trouble codes: 279D.
2006 Cadillac DTS 4.6L in drive or reverse VIN: 1G6KD57Y46
Trans is going to be replaced. Thanks for the help on this.
1994 Chevrolet C1500 Cheyenne 4.3L High Idle VIN: 1GCDC14Z1R
First off, many replies and very much appreciated. Bottom line, throttle position sensor(TPS). When vehicle first came in, we had an issue with the TPS jumping up to 4.9V and it would run rough. I tightened the connector connection, and the voltage was back...
1999 Chevrolet Tahoe LS 5.7L MIL Lamp on, Intermtnt hard start VIN: 1GNEK13RXX
Thanks for all who replied. There were many great suggestions that were very helpful. I am embarrassed to report the drop in fuel pressure was from a faulty adapter. I did not use it when I tested at the fuel filter as I needed a different adapter. Oh well!... Trouble codes: P0172, P0175.
2003 Chevrolet Impala 3.8L Unknown
All said V points up. The smaller metal strip is the thermo element which must be pushed up and held flush with the case. William gave me a web site that rebuilt this tranny. On picture #168 it shows this piece very well. I'm glad I checked with you guys befor...
2004 Chevrolet Malibu LS 3.5L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G1ZT54854
first of all, thanks to everyones start i have learned not to trust every test available on our after market scan tools, per some of your posts & i wouldnt have known how inaccurate the inj balance test was if i hadnt tried it w/ the rail out of the in... Trouble codes: P0300.
2008 Dodge Sprinter 3500 3.0L MIL Lamp on VIN: WD0PF34598
OK this one is back on the road installing water softeners and what not. quite a big job to replace the manifolds, once i got them off the swirl valves were badly coked up, and the linkage was worn. i replaced the turbo due to leaking oil. i did not replace th... Trouble codes: 2953 (Swirl valve).
2001 Ford Taurus SE 3.0L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: 1FAFP53UX1
trying fuel module assembly today to see if will fix found no driver module in trunk nor pressure sensor for fuel rail on fuel rail assembly lowered tank and inspected all lines and wires from pump ton sensor on top of the tank had continuity on all wires will... Trouble codes: P0193, P1233.
2009 Ford Focus SE 2.0L dash area VIN: 1FAHP35N99
road tested with heater bypassed and noise was gone, so reconnected hoses and raised right front of car and did the bleed sequence in Mitchell, no more noise. thanks to you that replied
2001 GMC Savana 2500 5.0L Ebcm VIN: 1GTFG25M21
ABS Module is suspect. customer declined repair at this time
2007 GMC W4500 Forward W4S042 5.2L crankcase VIN: J8DC4B1607
Knowing that we had at least a high pressure leak to begin with, that is where the tech was looking and focused on. Since we work on these vehicles fairly steady, we happen to have a couple of spare high pressure pumps left over. He pulled one completely apart...
2007 Honda CR-V EX 2.4L MIL Lamp on VIN: JHLRE48527
Sent to dealer. They were told there was nothing wrong and that we didn't know what we were talking about. Picked car up and check engine light came on as they left dealer. They called us and we told them (again) that the light only sets on cold start up and t... Trouble codes: P0341.
2001 Land Rover Discovery Series II SE 4.0L Cooling system presure VIN: SALTW124X1
Fist off my neighboring tech would like to thank everyone for the input and he has informed me that they will be joining IATN. The customer has not returned for a week so he feels that the problem has been solved. After removing and re-testing the heads they w...
1995 Lincoln Town Car Cartier 4.6L Poor Idle Quality VIN: 1LNLM83W8S
thanks for all the replies. I have pretty much done most things recommended but the egr passage check. We put a vacuum gauge on the motor & got the ole fluctuating needle indicating worn valve guides. Don't see that as the cause of the warmed up stalling but r...
2006 Mercedes-Benz CLS55 AMG 5.5L No Start VIN: WDDDJ76X46
James from California nailed it. 219 chassis keeps fuel pump relay seperate from rear sam unit on right side of trunk. Sure enough relay and harness burnt. Replaced relay, cleaned harness all good now. Thanks for all your replies...
2006 Saturn Vue 2.2L compressor VIN: 5GZCZ33D16
You can't leave the scroll valve in backwards because the low side goes to 20 PSI or way too cold to leave it that way. Was advised that the evaporator would probably freeze up keeping the oil from circulating. The clutch would not cycle at that low pressure,...
2005 Subaru Outback i 2.5L Seatbelt VIN: 4S4BP61C55
Thanks for the help. Customer doesnt seem to worried about it. She can buckle the belt and make chime go away. Will try to get her back in to attempt recalibration.
1998 Volvo V70 R 2.3L evap small leak VIN: YV1LW5241W
Thk you all very much It was the charcoal canister The new one didnt shake like a maraca Hahaha The new one was some what lighter too Drove around for ahour no EVAP code P0442 Thks to all that responded to my post This is closed
2005 Volvo V50 T5 2.5L Gear selector module VIN: YV1MJ68295
This repair was a lesson in diagnostic fundamentals, the first of which being, confirm the complaint if possible. As I wrote in the help request,I had never experienced the symptoms described by the owner. Their description, my inexperience and the error messa...
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