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Prev Professional Automotive Repair Technical Discussions for April 29, 2006
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Open Help Requests for All Makes and Models
Help Request Answers
1991 Acura Integra LS 1.8L Poor Idle Quality, Surge VIN: JH4DA935XM
Customer stated check engine light on and engine hunts at idle. Idle fluctuates from 800 to 2000 rpm after engine reaches approx 110 degrees. Idles about 1400 steady when cold. Pre inspection found that coolant was low 3/4 gallon. Topped off and bled with blee... Trouble codes: 14 (EACV Electronic Air Control Valve)
2003 Acura RSX 2.0L Unknown VIN: JH4DC53803
Hello, Problem is a clunk/pop/creak type noise coming from the right front, sounds like under the car. Occurs one time when accel. from 1st gear while under power. when you let off gas to shift it sounds again then again when under power in 2nd gear. After t...
2001 BMW 740iL 4.4L none VIN: WBAGH834X1
hi!! guys i have this problem with this bmw. the customer complain is that there is a noise when the heat or a/c is turned's like a gurgling noise. sounds like if the coolant system has air in it. this repairs were done about a year ago. customer started...
1995 Chevrolet Lumina LS 3.1L Excessive Emissions, Hesitation, Poor Fuel Economy VIN: 2G1WN52M8S
this one came in with the converter glowing cherry red...inspection revealed check engine light on code 17 ect low input, found ect unplugged , spoke with customer and found that he unplugged it because fan was not working?.. plugged it back in and tested work...
1994 Ford F600 7.0L No Start VIN: 1FDWF60JXR
This truck has no spark. A road mechanic has already tryed a new ignition coil. The problem is that we don't have repair information on hand pertaining to this truck. The local Ford dealer does not work on trucks larger than an F350. Therefore, it was towed to...
1999 GMC Sierra 2500 SL 6.0L engine VIN: 1GTGK29U7X
We recieved this truck and customer stated it heats up 240 in the afternoons. We could verify the complaint after a hard run. Check for combustion gasses in coolant tank-positive. So we removed they heads and checked for a bad gasket-looked ok. Had heads magna...
1997 Hyundai Sonata GL 2.0L MIL Lamp on VIN: KMHCF24F9V
evap, oxygen sensor, oxygen sensor heater, egr monitors will not set 200 miles. Trouble codes: P0505
1989 Mazda 929 3.0L No Start VIN: JMIHC2213K
Hello Mazda Techs... I have a 89/929 that wont start up. It has spark to the plugs and fuel pressure before and after the fuel regulator. Regulator is holding vaccum. Fuel gauge is putting out 40psi. Seems like the fuel injectors are not opening. I was wonderi...
1993 Mazda Protege DX 1.8L No Start VIN: JM1BG2243P
hi fellow iatn members. this mazda was towed in as a no start. no spark,no fuel inj pulse,no mil on even key on engine off and it looks like no communication w/scanner. i am trying to run power and ground checks on ecu but there is a discrepency between mitche...
1979 Mercedes-Benz 280SL 2.8L No Start VIN: 1070421000
This vintage grey market 280sl starts & runs great when cold & as long as you keep it running. However if you let it set for 10 or 15 min. It will just spin the stater & not crank up. It gets line presure of 78lbs. as soon as you spin the engine over. It's not...
2000 Mercedes-Benz S430 4.3L windows,mirrors VIN: WDBNG70J5Y
hi guys,bear with me i am posting this to help a friend out. the drivers side master window switch lights will go out, when this occurs nothing will work from the switch,but i understand that the other window switches are not affected. this condition comes and...
1997 Pontiac Grand Am GT 3.1L door locks VIN: 1G2NW52M4V
This problem is extremely intermittent, but has some bizarre symptoms. Three months ago the customer was accelerating on a cold engine and experienced a complete electrical shutdown, stalling the engine. They coasted to a stop and the vehicle restarted with th...
1994 Saab 9000 Aero 2.3L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: YS3CN65R7R
TRACTION CONTROL test with tech2-dtc po120 and e7590-clear codes-car will run fine until shut off and restart,cable adjustment-ok,throttle body holds vacuum and lever moves,safety valve works when activate with tech2,ohms ok hot or cold,im leaning towards a th... Trouble codes: E7590 (safety valve system fault), P0120
1999 Saab 9-3 SE 2.0L battery VIN: YS3DF58N8X
1992 Volvo 960 2.9L Surge, Cuts out, Stall VIN: YV1KW9508N
We have this 960 wagon that we purchased from one of our customers to supplement a identical shop car. We didn't see it much anymore over the years and now we know why. We thought he had just put it out to pasture, but now know it has some possible electrical ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1996 Chevrolet Blazer 4.3L Hesitation VIN: 1GNCS13W5T
Thanks for all the replies.Most everyone agreed to what I had suspected,bad fuel pump.After replacing the pump,fuel pressure came up to specs.which is 60-65 psi.On these later model 4.3 the injectors can be changed indualvidally.Thanks again for all the great ...
1998 Chevrolet Express 1500 5.0L transmission VIN: 1GBFG15M8W
Thanks to everyone who helped me out with this problem. The problem was do to a defective torque converter. It was replaced and the customer is very happy. Thanks again everyone Rob
1999 Chevrolet Silverado 1500 4.3L Misfire VIN: 1GCEC14W5X
thanks to everyone that replied, several said to check the cam retard it was at -17 deg. I pulled the dist to check the gear it had a little wear but we decided it would be ok. I spread the clamp enough to let the dist turn a little and reset retard reading to... Trouble codes: P0300.
1995 Eagle Talon ESi 2.0L 2-4 shift error code 42 VIN: 4E3AK44Y7S
Thanks again for everyones input. I decided to replace TCM module. I installed NEW module, programned, and let customer drive vehicle (good customer).As of 4/29/06 vehicle shifts good and no failures!!! Thanks again.
1995 Ford F-350 XL 7.3L radiator VIN: 1FTJW35F7S
hey all. this truck actually turned out to be a 94 model. it had the big brass rad. in it. i got the truck up to op temp. and checked the rad with a infr temp gun and about halfway down it the temp droped almost in half, plugged radiator. so a new radiator was...
1992 GMC C1500 Suburban 5.7L No Start VIN: 1GKEC16K1M
You guys ROCK! I shoulda known it would be something simple. Yes, the pick up and module were the culprits, I replaced them and now all is well with the Suburban. Thanks again to all of you that replied.
1995 GMC Jimmy 4.3L lifters VIN: 1GKDT00000
well the oil pressure tester gauge was faulty which threw me for a loop/after trying another gauge the oil pressure was between 3-8 psi @ idle/after a long time the custumer finaly give us the ok to pull the oil pump and all the main brgs. like you would emagi...
1990 Honda Accord EX 2.2L Not charging VIN: JHMCB7663L
Hi everybody and sorry for the delay.I have the mechanic replace the alternator like 5 times.He put new Bosch alternator twice with the same problem.Then he put another from a pile of alternator that he has,(not sure if it's factory)& it worked for one hour wi...
1997 Honda Accord SE 2.2L Wiring Harness VIN: 1HGCD5603V
Hi Group Sorry for the late post. This car is not fixed yet. After dealing with insurance company and getting the wrong main harness, and being very busy, I hope to be completing it soon. The only response I got from the group was about the flatrate. I est...
1999 Isuzu N NPR 4.8L Electronic VIN: JLAC4B140X
I'm closing this request for now, the vehicle is not OBD2 and cannot be accessed with Tech2.Thanks for the code list that was faxed to me. It helped a bit, i'm waiting for additional info from Isuzu. I will post the fix when it's completed. thanks all for the ...
1992 Mazda Miata 1.6L No Start, Stall VIN: JM1NA3518N
Finally, we thought it odd that the engine would start but not stay running. Spark was still there when it died, just no injector pulse. We replaced the new ignition transistor (a Mitsubishi manufactured component through WorldPac) with a used one and the prob...
1996 Mercedes-Benz C220 2.2L ignition switch VIN: WDBHA22EOT
want to thank everyone that replied and taking time to help me out. Used a dremel to grind of the pin and drilled out the tumbler. Pulling the assembly out tomorrow. thanks. love iatn.
1997 Nissan Altima SE 2.4L cylinder head VIN: 1N48U31DXU
I finally got back to finish this car. (it was out of town,favor for an old customer) I received two different suggestions. one was to install with the int. manifold attached to the head(which I dimissed as WAY too awkward) What I ended up doing was to place t...
1994 Pontiac Bonneville SE 3.8L MIL Lamp on VIN: 1G2HX52L5R
A lot of replies seemed to think we were having cam and/or crank sensor problems. We scoped the cam, crank and ignition module and everything look perfect. After inspecting the cam magnet and finding it in good condition we pulled the balancer off to get a vis... Trouble codes: P0341 (cam/crank error), P0321 (spark reference), P0361.
1987 Volkswagen Vanagon GL 2.1L cranking spark VIN: WV2YBO259H
Thanks to all for the good advice. Many of you stressed the fact to check grounds, and you were correct. I found a ground hanging on by a thread on lt head,(kind of hard to see or get to), just above rocker cover. Removed and cleaned all grounds including the ...
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