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Prev Professional Automotive Repair Technical Discussions for August 15, 2010
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Help Request Answers
1998 Acura TL 3.2L No Start VIN: JH4UA3640W
Wanted toget some help on this vehicle. Came in with a no start condition. Diagnosed defective fuel pump.I checked voltage at black yellow wire in trunk going to fuel pump. It had 8 volts which I assumed was enough being that the battery was low due to excessi...
1985 Chevrolet Camaro Z28 Iroc-Z 5.0L engine VIN: 7776565625
pulled the 305 out an replaced with a high performance 350. compression 10.2 to 1. brand new 195 thermostat, aluminum water pump. i am running a stock radiator. cannot seem to get this bad boy to stop overheating. when i am running on the highway the temp rise...
1995 Chevrolet K1500 5.7L Transfercase ? VIN: 2GCEK19KS1
My truck has developed a bad vibration,its worse when pulling a trailer its starts about 60 and feels like it coming from the back half the truck.It will do it on a steady cruise in 3rd or 4th gear. I can let off the gas or speed up to get it to quit, The best...
1997 Chevrolet Blazer LS 4.3L Excessive Emissions, Poor Idle Quality VIN: IGNDT13W5V
All was running great after previous repairs,, just started running rough,, I removed EGR and cleaned pintle area still rough,, I noticed fuel cell value at idle is 17, off idle drops to 2 then progressively goes up with throttle. is this normal at idle FT c...
1993 Dodge D250 5.9L a/c alt speedo
No a/c ,no alt,no speedo,no communication to scanner. Ground a/c relay & clutch works,ground other relay & alt works.Crank sensor checks ok,replaced ign switch.checked all fuse links.Suspect pcm . No wiring diagram. anyone know which pins at pcm to verify it"s...
2004 Dodge Ram 3500 Truck SLT 5.9L Poor Idle Quality, Cuts out, Stall VIN: 3D7MU48C14
Truck towed in idle will drop to 500 and almost stall engine will catch stall and idle jumps to 1500 then down to 800. Fuel pressure on scan tool will drop 2000 psi or more below fuel pressure set point with a drop in idle speed, then if it don't stall pressur...
2004 GMC Envoy SLT 4.2L Mechanical VIN: 1GKDT13S64
hi techs,wierd one here.let vehicle sit afew hours,then startup and encoder motor sounds like a vacuum cleaner for 30 sec. or so.truck does move when happening.did have c0327 in history.i installed new encoder motor,still happens.switches in all positionns,tra...
1999 Lincoln Town Car 4.6L Misfire, MIL Lamp on VIN: 1LNHM81W6X
I have been fighting this problem on a 1999 Lincoln Towncar Limousine with Calif Emmisions. It first came in with the A/C not working, you could start the car and it would run for about 3 seconds and quit. It was fully carged and the pressure switches test goo...
1997 Nissan Pathfinder LE 3.3L Power Windows inop VIN: JN8AR05Y5V
We have this pathfinder in the shop that is eating the boss's lunch and dinner. Came in and the right front window was inop. Run the usual testing, check power and ground and replace the window motor, window still not working. Start checking other windows and ...
2001 Nissan Quest GLE 3.3L No Start VIN: 4N2ZN15T71
vehicle came in with MIL , code for Evap system purge vol. control valve , my tech followed the diagnosis from Alldata . evap solenoid is defective but the vehicle does not want to start now. We had to remove PCM ,and tested voltage at PCM pins. No pushed pins...
1998 Oldsmobile Achieva S 2.4L key and tumbler VIN: 1G1354ZNHH
What do i do next. Do i need a tech 2 or can it be by-passed thank in advance for any help.i,ve been a tech for a long time but never got into dealing w/one of these.
2001 Saturn SL 1.9L gauges VIN: 1G8ZH54861
Good morning Saturn Gurus! I have a good customer with complete failure of dash cluster. I dont have a wiring diagram for this vehicle and am hoping for something besides the standard "replace the BCM" answer. After reading 100+ posts in the archives I dont th...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 Dodge Ram 2500 Truck 5.9L Cuts out, Stall VIN: 1B7KF236XY
After a few days of using this vehicle on and off, the hot soak problem persisted. The diagnostic code never reset, and the shut off solenoid seemed to be working normally. Customer agreed to replace the VP44 injector pump. Since replacement of the pump, th... Trouble codes: P0370 (Injector pump speed sensor signal loss).
2007 Ford Escape Hybrid 2.3L high temp VIN: 1FMCU49H67
As tom from mich stated that he had a overheating problem in the hybrid cooling system. We went with the over heat codes set by the hybrid system and replaced the electronic mecs pump that circulates the coolant for the trans and voltage converter. [...] has up...
1998 Jeep Grand Cherokee Limited 5.2L Misfire VIN: 1J4GZ58Y8W
Once again, thank you to all memebers who responded. Alot of great ideas. What really ended up fixing this was going back to the beginning. As I said in my original post, when I moved the injectors from #3 to #1 and # 6 to #8 the misfires also moved.What I did...
2008 Lexus IS250 2.5L Hid Headlights VIN: JTHBK26288
Replacing both headlight bulbs with Lexus O.E.M. parts completed this repair. Jeffrey from New Jersey had it right stating:'After the modules drop the initial start up power it might not be enough to sustain the arc in the used bulbs'. Still left the new headl...
1987 Mazda RX-7 1.3L Excessive Emissions VIN: JM1FC3311H
Thank you all for helping me, I found that the air injection switch connector was corroded by the minor leak from radiator's upper hose. After I cleaned the connector, the smog check passed.
1995 Mercedes-Benz S500 5.0L Surge, Cuts out, Stall VIN: WDBGA51E8S
thank you that replied, i always get good information here. the suggestions i received were: the vacuum port at #8 could be inhaling too much air. a faulty diagnostic module could be turning off #8 injector. disconnect ecu for a minute to reboot. distributor ...
2000 Pontiac Bonneville SSEi 3.8L electric windows and locks VIN: 1G2HZ5412Y
thanks for all the replies to my nightmare problem. special shout out to Gregory from Illinois and George from New Jersey. they nailed the problem. i checked the archives first but i must have missed the fix for this problem. i had to pull the drivers seat out...
1967 Rolls Royce Silver Shadow 6.2L Lighting
Thanks for the many responses. A couple of members recommended the on-line technical library on the Rolls-Royce Owners Club of Australia at . Sure enough, I was able to download the entire collection of wiring diagrams. There is a great deal ...
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