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Prev Professional Automotive Repair Technical Discussions for June 25, 2011
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models
Help Request Answers
2000 Chevrolet Tahoe 5.3L battery light VIN: 1GNEK13T9Y
This vehicle came into my shop with a new alternator, battery light comes on and off while driving. We tried another alternator, a different instrument cluster, and a different PCM. Went through all test, could not find a problem. Connected a scope to the grey...
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1993 Dodge Caravan SE 3.3L No Start
While cranking I can see the scan tool shows rpm and says yes to cam and crank signal. I cannot get spark or injector pulse, there is 12v to coil and injectors while cranking but I think the pcm is not grounding circuits. All help will be appreciated, thanks f...
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1996 Dodge Caravan 2.4L wipers, instrument cluster VIN: 2B4FP25B3T
Both rear and front wipers inoperative. However, they can be cycled on and off with fHnctionality test through a hand held scanner. All functionality tests are successful through scanner. There are times when lights in the instrument cluster/panel flash on and...
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1998 Ford F-150 Lariat 5.4L brakes VIN: 2FTRX08L0W
replaced all rads & rotors rear wheel cylinders flushed brake system replaced vacuum booster still hard braking on panic stop has good vacuum anti lock activates on dirt roads
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2004 Ford Mustang 3.8L Poor Idle Quality, Misfire VIN: 1FAFP40474
04 mustang 3.8 came in idle was ruff & misfiring. customer had spark plugs, wires & even alternator changed at a different shop then came to our shop after they could find problem. We found low spark on cylinder 1 & cylinder 5 replaced ignition coil, same prob... Trouble codes: P0316, P0301, P0305
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2010 Ford F150 4.6L High rpm VIN: 1FTEW1C88A
How cant relearn mode idle speed? when put in gear the rpm is stable the problem is only in parking on the scantool no trouble codes check the updates for the pcm and tsbs and no found fix thanks for the reply
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2007 Jeep Grand Cherokee Limited 4.7L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1J8HS48P47
Hello everyone, First start off with i hate this jeep, lol. Jeep first came to me about a month ago running rough had a intermiten misfire and a ck eng light on. Scanned pcm and retrived p0305. after switching coils the misfire changed location with coils. r... Trouble codes: P0300 (Random misfire), P0206, P0208, P0204
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1985 Mercedes-Benz 500SEL 5.0L No Start, Poor Idle Quality, Stall VIN: WDB1260371
I admit I'm over my head on this one. This car belongs to a good customer who inherited it. It's in pretty good shape for its age. Funds are limited so I'm kind of in a corner here. On any start, the engine will start on first crank, then stall. When cranked a...
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2001 Nissan Maxima GLE 3.0L Poor Idle Quality, Stall VIN: JN1CA31AX1
hey guys, trying to save a single Mom some $$. She has had this car since it was new, wants to give it to one of her kids. It needs an IAC valve ( $310.00+ labor ) and an ECM ($910.00 + labor ). The question: can we replace the ECM with a good used part? Will ...
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2007 Subaru Outback 2.5i 2.5L muliple warning lights VIN: 4S4BP61C57
I hope a Subaru expert can point me in the correct direction. Vehicle was in my shop for some collision damage repair as noted above. The first symptom I noticed was a dead battery. After charging the battery I noticed the dome lights were staying on. I turned...
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Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1995 Chevrolet C3500 7.4L Upshift/Output Speed VIN: IGDGC34N9S
Ok so this morning i ordered a computer from napa put it in and all symptoms are gone. So that was the fix for this ghost car. Happy i fixed it and customer is also happy.
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2006 Chevrolet Express 3500 4.8L R.H. Wheel speed sensor circuit VIN: 1GCHG39V56
I tested both front wheel speed sensor circuits again. Both gave the same resistance readings and lab scope waveforms at the EBCM. I called Identifix for further help. I checked the bias voltage on each WSS circuit. Both were at 3.275 volts. I produced another...
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1999 Chrysler Intrepid 2.7L blower motor VIN: 2C3HH46R0X
Thanks to all. Tom from Illinois was correct on checking the resistor. I did not think that the blower motor would "blow open" another resistor in 1 shot, as Brad and Jason also noted. I have replace the resistor and blower motor. A/C and blower controls are f...
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1994 Ford Escort 1.9L Dash LEAKING FLUID VIN: 1FARP11J2R
THANKS FOR ALL REPLIES ,SHOULD HAVE BEEN ABLE TO FIND THIS ONE MYSELF.IT WAS SPEED SENSOR IN TRANS LEAKING UP THROUGH HARNESS. FIRST REPLY MADE ME SAY "WHY DIDN'T I THINK OF THAT"
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2004 Jeep Wrangler Rubicon 4.0L Hesitation, Surge, Cuts out, Stall VIN: 1J4FA69S24
Thanks for the replies, I tried disconnecting the O2 sensor with no change. I pulled out the ECM connectors and found the middle connector filled with engine oil. I traced it back to the oil pressure switch, it was leaking into the wire and following the curre... Trouble codes: P0157 (O2 Sensor short to ground bank 2 sens. 2), P0158 (O2 Sensor short to power bank 2 sens. 2).
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2006 Jeep Grand Cherokee Limited 5.7L trans &transfer case VIN: 1J4GR48K26
Took the Grand Cherokee to the Chysler dealer for a relearn, came back 99% better shift feel. Iam not sure why snapon or bosch scaner does not support relearn's on the tcm for this vehicle. thanks for the input.
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1994 Pontiac Firebird 3.4L Cooling Systems VIN: 2G2FS22S6R
Car is fine cooling fan cycles at 225-212. gauge is wrong and cap was bad. checked good first time i checked it bad the next. ecm and thermo gun consistent with each other. temp gauge in the red it needs a resistor in line. don't know why but does. all four t...
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1997 Pontiac Sunfire SE 2.2L theft system VIN: 4G2JB3249V
Gentlemen I want to say thanks for the replies to my no start. the problem I have is it now starts everytime so we have no way to trace the no spark problem when it does not start. I mentioned in my post that we were thinking about the theft system which inc...
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2007 Pontiac G6 GT 3.5L no crank VIN: 1G2ZH57N77
Hey Guys, well it looks like the starter was bad afterall, to play it safe, we also changed the crank relay. Many, many thanks to all. Just one more question... Are we having fun yet ? Are we almost there. God Bless one and all, Bob C
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2001 Volkswagen Jetta GL 2.0L Trunk lock VIN: 3VWSK69M41
Most of the replies indicated that I had been given the valet key for the car, and it was true. The correct key was delivered to me and solved all my key issues. I gained access to the trunk via the rear seat backs Lowered both), climbing into the trunk area a...
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2003 Volkswagen Beetle GL 1.8L radio VIN: 3VWCK21C3M
Thank you for the final piece of information after entering the code you have to hold the seek] or track ] down for up to 10 seconds waiting for radio to beep then it unlocks
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