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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 1, 2009
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for All Makes and Models
Help Request Answers
1991 Chevrolet K1500 Cheyenne 5.7L 4x4 fuse VIN: 2GCDK14K8M
A Friend brought this truck to me this morning. Said 4x4 went out yesterday. Truck is blowing 4x4 fuse as soon as 4x4 is engaged. Am letting truck melt out (ice in chassis) before I start crawling around under it! I'm going to start by unplugging the front axl...
1999 Dodge Ram 1500 Van 5.2L No Start VIN: 3B7HF13YZX
This was towed in yesterday with a cranks, no start. Customer had had it to 2 other shops for rough running, stalling and eventually no-start. It hasn't been running for about a year. Customer replaced both heads with reman units, supposably he had some bent v...
1997 Ford Aerostar 4.0L shift problems VIN: 1FMDA41X1V
Ran scanner. Showed shift point problems. Also shows case ground problem. Opened wiring harness and found computer ground tie point. Checked connection- also hooked gound to battery wire to connections- problem did not change. Back probed computer wies at comp... Trouble codes: P0734, P7073
2002 Mazda Protege5 2.0L No Start, MIL Lamp on VIN: JM1BJ24552
Very intermittant missfire code PO 300 at times the MIL light will flash. Ongoing for months. Origonally it would act up every few weeks then once or twice a week. When its runnign right it is flawless. I started with Mazda plugs and insulator/wires off coil... Trouble codes: P0300
1987 Nissan 300ZX 2+2 3.0L engine temp sensor VIN: JN1HZ14S9H
Is is possible to replace the engine temp sensor, located in the front of the left side cylinder head, without removing the timing belt cover? Can it be removed and replace by only taking the fan shroud and fan off the engine.
1994 Toyota 4Runner SR5 3.0L head gaskets VIN: JT3VN39W3R
Does toyota still cover the blown headgaskets issues with the related engines and years. I have heard that they had been replacing headgaskets on 90-95 v6 motors and I wanted to know if this is still true.
1999 Volkswagen Passat GLS 1.8L Surge, Stall, MIL Lamp on VIN: WVWMC63BOX
Hi all techs : this car came in for timing belt maintenance service. I installed the update timing belt kit which included the new tensioner,tensioner pully and belt (same number of teeth "153" as the old one). I also replaced the timing chain tensioner gaske... Trouble codes: P1602, P0102

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 Audi A8 Quattro 4.2L compresssion good VIN: WAUFL54D8Y
good morning: had custoer return this car, and we check for excessive blow by, there was none, so we removed the pcv valve, that was new from audi, and pluged the vaccum side, then routed the pvc lines into a plastic pop bottle, and let the cutomer take it ...
1991 Cadillac Fleetwood 4.9L Misfire VIN: 1G6CCB53B4
I did a very thorough scope check #s 6 and 7 seemed to be the cylinders causing the problem, I retraced all the items I had done earlier and nothing changed. I pulled the intake manifold and inspected the gaskets etc.. I thoroughly inspected all the distribute...
2002 Chevrolet Trailblazer LS 4.2L Heater VIN: 1GNDT13S72
Thanks to all who responded to my request on heater problems on the Chevrolet Trail Blazer. I replaced the left heater actuator that I got from a GM dealer. I still had problems with erratic operation of the heater only on the left side. I tried the manual me...
2002 Chevrolet Tahoe LS 5.3L Surge, Misfire, MIL Lamp on VIN: 1GNEK13Z42
As many of you had suggested, the fuel pump was the culprit. I did some further testing by closing the return line off to see if the pressure would increase and it did to 70psi. That result really had me shying away from the pump. Since it was an aftermarke... Trouble codes: P0300 (Random Multiple Cylinder Misfire), P0301 (Misfire cylinder 1), P0303 (Misfire cylinder 3), P0430 (Right cylinder bank catalyst below efficiency).
2004 Chevrolet Monte Carlo SS 3.8L washers VIN: 2G1WX12KX4
Thanks for all the help. The problem was the nylon hose from the pump to the wiper arms had an internal check valve that at times would stop flow.Hose looked fine? Weird.
1998 Chrysler Town & Country LX 3.3L no start /cluster VIN: 1C4GP54G2W
2005 Dodge Grand Caravan SE 3.3L unknown VIN: 2D4GP24R45
rotated tires as suggested by most posts with no change. rechecked lower ball joints and control arm bushings..found grease fittings starting to suck into the joints..changed arms and installed new moog units no change. i was unable to duplicate the wander by ...
2003 Honda CR-V EX 2.4L torque convertor VIN: JHLRD78853
Thank you for the replies, Transmission shop that rebuilt transmission originally installed new pump, no more noise so far thanks again for the help
1996 Mazda MX-3 Precedia 1.6L leaking water pump VIN: JM1EC4332T
Hey guys and girls.Thanks a big bunch for the help.I started on it at 2:35-the pump was on the bench at 4:05-do nec clean up and install rebuilt pump and was running at 5:50.I suppose not bad for a GM tech on an Asian.Went out under its own power and maintaine...
1991 Toyota Corolla DLX 1.6L Misfire, Runs Rough VIN: 1NXAE94A4M
Thanks to all that replied! Performed a compression test on this vehicle on Friday morning and found, to my dismay, low compression on cylinder #2 (135psi). Compression was 210 -225 on cyl.'s 1,3,4. A wet check of #2 did not improve matters. Suspect burnt valv... Trouble codes: 25 (02 Sensor front).
2000 Toyota Sienna LE 3.0L abs VIN: 4T3ZF13C4Y
Thanks to everyone that replied. I had the vehicle back in the shop yesterday with the ABS light on (this is intermittent), performed the wiggle test at the ABS module wire harness with no effect on the light. Turned the engine off and hooked up Snap-On Solus ...
2001 Toyota RAV4 2.0L alt not charging VIN: JTEGH20VX1
thanx for all the replies, the problem appeared to be a wiring issue from the fuse block to the alt plug to save time i ran a new wire to the alt plug but i suspect the problem could be in the fuse block itself, any ideas/previous experience with this???
2006 Toyota RAV4 Limited 3.5L Long Crank Time VIN: JTMBK31V06
i have not recieved the vehicle back into the shop as of yet. but i closed this help request because the replies i recieved are excellent suggestions for my diagnostic aproach to this problem. my personal aproach to any diagnostic attack is to gain as much inf...
2000 Volkswagen Beetle GLS 2.0L No Start VIN: 3VWCC21C6Y
I am closing this request without a fix because in the week we had it and the two weeks the customer has had it back this car has started normally every time except that one monday when the other tech tried to start it [before my post]. I want to thank all who...
1985 Volvo 244 DL 2.3L Poor Idle Quality, Hesitation VIN: YV1AX8843F
well, obviously lots of other iatn members have been confronted with this scenario before. got lots of good replies. one reply mentioned the intake gasket (larry!) causing identical symptoms. it checks out good on removal of intake. many replies agree with the...
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