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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 15, 2009
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Open Help Requests for All Makes and Models
Help Request Answers
1995 Buick Riviera 3.8L Hesitation, Misfire
Very good customer of ours complains of an intermittent misfire/stutter/stumble, mostly cruising around 60 mph. I've replicated the symptom on several test drives, and notice the same stumble under acceleration, at cruise, at moderate and light throttle, and o...
1989 Chevrolet Corvette 5.7L No Start VIN: 1G1YY2180K
Hi all, This vehicle start and run perfectly when cold but if it is turned off with a hot engine, will crank over but not fire up. The air mass meter has recently been changed for a new genuine unit after the engine bay wiring was damaged by rats. The owner st...
1997 Chevrolet Venture LS 3.4L Poor Idle Quality, Misfire VIN: 1GNDX03E4V
Hello my fellow tech's , first time asking for help , im posting this because of a good friend i have in fl., he has this van that his tech can't find the problem over there , anyway , any help will be greatly appreciated , this van is back firing in the intak...
1999 Chevrolet Venture 3.4L over heating VIN: 1GN0717M0X
ater replacing intake gasket can't seem to get the air out of the rear head. Try to lift the front of the vehicle and letting it run for hours. Appears you have the air out, then take it for a test drive and let it cool down, drive it again and it overheats wi...
1999 Ford Explorer Eddie Bauer 4.0L high idle VIN: 1FMZU34E0X
I got this one in with CEL on and needing a state inspection. Codes were P0172, P0171, and P0174. Found air leak at MAF sensor(clamp loose). Fixed it, cleared codes and did drive cycle and state inspection. Idle was rough and customer agreed to tune up since...
1987 GMC GMC 7000 8.2L engine miss VIN: 1GDL7DIG4H
Hey guys and girls.This one is for the older GM diesel pro's.I was looking at a 1987 GMC 7000 today with an 8.2 v-8 Detroit Diesel and 5 speed manual.It has a light dead miss at idle with no excessive smoke (some)and a bit of a miss on acceleration almost like...
2000 Jeep Cherokee Classic 4.0L Misfire VIN: 1J4FF58S5Y
Vehicle came in with overheating issue and a #5 misfire. found a 4 inch crack in cylinder head. after installing a reman head the misfire is still present. found no signal to #5 injector, tested at ecu with still no signal so we replaced with used unit. we the... Trouble codes: P0305 (cly 5 misfire)
2001 Lincoln LS 3.0L cluster VIN: 1LNHM86S31
Hi there everyone... what a day. got up & went to the shop to do a simple repair on my personal car. Air bag bulb was burned out and this stupid chime was going off all the time. pulled the cluster and replaced bulb. Re-installed cluster and now car will not e...
1994 Mazda MPV Passenger 3.0L Hesitation, Surge, Lack of power VIN: JM3LV5221R
This is my personal vehicle and had limited equipment at home to check it. The engine one day suddenly developed a hesitation and lack of power off-idle. When you depress the accelerator, it accelerates very weakly (almost like you had it in 2nd or 3rd gear wi...
1985 Other European 308 2.9L auxiliary air regulator VIN: ZFFUA13A2F
Auxiliary air regulator has power but no ground. Does anybody know where the ground location is, or does anyone have a wiring diagram with a ground location included?
2002 Other GM Vectra 3.2L Oil in water VIN: WOLOZCF683
hi guys, hope someone can help. this motor i believe is fitted to a number of vehicles from a saab to a vauxhall. the car is a Holden Vectra. the customer bought the car and found oil in the cooling system. we removed the heads, pressure checked them/crack tes...
1989 Plymouth Acclaim 2.2L Poor Idle Quality, Misfire VIN: 1P3BA46K3K
Hi all Sort of a strange one here that I feel like I am missing something simple. Car has had a reman PCM, idle air motor installed at another shop in its history. Also the customer had the cat converter changed also. Original complaint was a rough idle jus...
2005 Toyota 4Runner Limited 4.7L front end
vehicle is full time 4wd that is making a cycling noise from front at 70-75 mph.can feel vibration in floor board also.completely goes away when you let off the gas.can be felt in passanger side but is more noticed in drivers seat. have replaced front diff and...
2008 Scion tC Spec 2.4L Air Bag Light VIN: JTKDE16738
This car was a wreck in the right rear quarter, no air bags were ever blown. Air bag light was off until quarter panel was replaced. There is a sensor for the RR that was disconnected during repair and put back in, apparently they started the car (with the sen...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1995 BMW 750iL 5.4L no power VIN: WBAGK2323S
I replaced the EML module and didn't have to do anything with the throttle relearn. The transmission shifts fine now and lots of power. One thing I learned when diagnosing the 5 modules on the CAN bus system is that even though I would clear the codes out of... Trouble codes: 50 (pedal travel), 80 (can), 82 (can), 125 (idle control changeover vavle), 51 (pedal travel).
2006 BMW 325i 3.0L ABS module VIN: WBAVB13566
Hi Everybody: I was try with a lot of aftermarket scanners and we canīt erase the DTC in memory. The problem: this car came with an USED ABS Control Unit that donīt match with vehicleīs VIN. We send this car to local Dealer and they makes a reprogram, and.....
1997 Chevrolet C3500 Cheyenne 6.5L No Start VIN: 1GCHC39F9V
We Got the vehicle to start and got it in the shop to do some testing. I tested all glow plugs with a test light connected to B+ and all checked ok . I then went to check power at all the glow plug connectors and was not getting any power with a test light co... Trouble codes: P1217.
2000 Chevrolet Tahoe 5.7L lower control arm VIN: 1GNEK13R7Y
As I kind of suspected the Lower Control Arm Stops were worn out. Cor from Alberta suggested welding some 1/4" stock onto the old stops ,as he said he has seen this before. So we did and Problem solved !
1999 Chrysler Cirrus LXi 2.5L strut VIN: 1C3EJ56H3X
Thanks for everyone's response. The answers were running 50% upper strut bearing, and 50% lower ball joint. I was able to determine that it is the lower ball joint by injecting grease into the ball joint seal (the lower ball joint on this model does not have...
1996 Ford Taurus GL 3.0L No Start VIN: 1FALP5ZU6T
Wow, never would have believed it without seeing it. The many guys that said to reverse the crank sensor wires proved to be right. I verified from your replies that the wires were on the correct sides at the sensor and pcm originally and I know no one had ta...
1999 Ford Ranger XL 3.0L wont drive right VIN: 1FTZRISV8X
Good afternoon all I replaced the speed sensor in the rear differential and everything works fine.The owner of this truck didnt believe me at first because he said he talked to autozone and they told him 99's dont have speed sensors,so much for the ZONE.Thank...
2006 Ford E-350 Super Duty 6.0L wheel VIN: 1FTSS34PS6
1992 Mercedes-Benz 190E 2.3 2.3L timing chain tentioner VIN: WDBDA28D0N
You guys rock! I got the same response from everyone. I disassembled the tensioner and it went together like butter. Thanks to everybody. I don't know what i would do without iatn!
2002 Nissan Xterra SE 3.3L Torque converter VIN: 5N1ED28Y42
Recieved 2 replies. One suggested checking for misfiring, which is always a good idea when faced with this problem. However I had verified that was not the cause. Other suggestion was to replace the Torque converter. That would probably fix it, but a liitle mo...
2000 Subaru Outback Limited 2.5L MIL Lamp on VIN: 4S3BH686XY
Thank you to everyone who took the time to reply! Well the overwhelming response was to replace the sensor. I did check the connectors and wiring again to be sure they were in good shape. There was no corrosion on the mounting surface either. I don't like to r... Trouble codes: P0325.
1995 Toyota Camry LE 2.2L no pedal VIN: JT2SK12E1S
Thanks for all the help. Bryan at Duffy's Automotive was right on target. Replaced the master cylinder for the fourth time, only I used a new part this time. Best brakes the car every had.I wonder if carquest will replace the 2 gallons brake fluid for me[ haha
1999 Volvo S80 T6 2.8L want bleed out VIN: YV1TS90D7Y
Thanks all, don't know how I could fix anything without this site, my son put brakes on and my fault for not seeing that clip was not in the right spot. It pulls the caliper on tight and keeps caliper from being loose.Someone said never open bleeder when colla...
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