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Prev Professional Automotive Repair Technical Discussions for July 31, 2004
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Open Help Requests for All Makes and Models
Help Request Answers
1987 Cadillac Fleetwood 4.1L Alternator VIN: 1G6BC5181H
Hi Guys, I am not a Cadillac tech but have 2 of them in my stalls eating my lunch. This one will not charge. The battery wire(the big one to the alt) is battery voltage (12V) and with the key on it has voltage to the red and the brown wires at the plug in conn...
1995 Cadillac DeVille 4.9L Turnsignals VIN: 1G6KD52B6S
Hey Guys, I have this 2nd Cadillac eating my lunch. I am a little lost. It has working brake and emergency lights but no turnsignals. I tested the switch with jumperwires and the switch is good.The fuses are all good and the bulbs and the turnsignal relay are ...
1984 Chevrolet Camaro Berlinetta 5.0L Poor Idle Quality, Hesitation, Surge, Stall VIN: 1G1AP87611
Ok, We just put a new rebuilt 5.0 HO in this camaro. The main problem is low vacume. Only 8 in at idle 700 rpm, and 14 at 2500 rpm. This creates a stall at idle, hesitation, lower than normal power, light surge at cruise. Test data-- Idles smooth-- no miss, n...
1998 Chevrolet Corvette 5.7L tire pressure VIN: 1G1YY22GYW
customer chnged to 02 style wheels with pressure sensors. Is there a way to learn the new sensors to the vehicle without the special tool. And if there is not where can I purchase this tool. we are starting to see alot of this in my tire shop. I tryed using a ...
1998 Dodge Grand Caravan 3.0L MIL Lamp on VIN: 2B4GP2430W
High All In IATN Land This one has me by the short hairs. Van came in with doorlocks wacking out, instrument cluster inop, and about 14 codes. Testing confirmed bad body computer. Replaced BCM and a whole new batch of problems came up. Retesting confirmed defe... Trouble codes: P1695 (Bus Com Problem Body), P1698 (Bus Com Problem Trans Mod)
1999 Dodge Ram 2500 Truck 5.9L Cuts out VIN: 1B7KC2368X
hey folx, help me out on this...truck came in with a P0216 injection pump timing problem...chk on my OTC & Modis scanner...the APPS ( throttle position sensor ) signal would be missing every now and then on lite throttle when rev engine at idle (neutral) Trouble codes: P0216
2001 Ford Escape XLT 3.0L Clutch VIN: 1FMCU04141
Vehicle came in with complaint of A/C not cooling. What we found is that if your idling the A/C cools down to 40 degrees, but when you start to drive it it goes up over 55-60 degrees. After watching scan data while driving we see the clutchSw turns off almost ...
1996 GMC C1500 Sierra SL 5.0L MIL Lamp on, Harsh trans engage VIN: 2GTEC19M1T
Original diagnosis for MIL on and harsh trans engage and shift included resistance test of TCC solenoid performed at disconnected 20 pin connector of trans, reading was in spec. Nearly identical readings obtained when tested at PCM connector and trans fuse. Wi... Trouble codes: P0325 (Knock sensor circuit), P1864 (TCC circuit)
1988 Honda Accord DX 2.0L cooling fans VIN: CA628JJA02
We have been stuck on this thing too long. I believe there is a wiring glitch between the relay and the sensor. I can make the cooling fan come on by bypassing the relay. So the fan is operable. I replaced the fan sensor at this time only to find the fan still...
2000 Hyundai Accent GL 1.5L Stall, MIL Lamp on, no accell VIN: KMHCG45G0Y
Hello fellow techs ,may need hyundai, tech.The best way to descrbe run problem is the vehicle basically runs ok with the exception that the engine cannot exceed 3000 rpms.This problem is always there whether in the bay in park or cruising down the road pushing... Trouble codes: P0422, P0562
1996 Isuzu N NQR 3.9L transmission VIN: JALC4B1K9T
Codes displayed are 13 and 24 I have no specific definition for these two codes I think 13 is TPS fault and 24 is related to VSS, I have already checked all imputs signals to TCM they are ok, but when the truck start moving and just a little touch to accel ped...
1999 Jeep Grand Cherokee Laredo 4.0L cooling fan relay VIN: 1J4GW58S4X
Help Anybody, I have this Grand Cherokee Laredo that belongs to one of my Tech's Mother so you know how much money we're making on this job.Anyway the problem is the cooling fan is not coming on I'm trying to find the cooling fan relay and Mitchell says it's b...
1994 Lincoln Continental 3.8L MIL Lamp on VIN: 1LNLM9740R
This car runs fine but the check engine light comes on. Most of the time it is in memory but will pop up in a KOER test, too. The code is 212 loss of IDM (Ignition Diagnostic Monitor) input to the powertrain control module. I checked the fix database here and ... Trouble codes: 212 (loss of IDM Ignition Diagnostic Monitor input to the powertrain control module)
1993 Mazda 929 3.0L trans shift,innerlock,dash VIN: JM1HD4614P
the meter fuse blows intermittantly,iunhooked the shift innerlock and the trans connector when the fuse would blow all the time,pulled it outside and the fuse quit blowing,hooked everything back up and drove two weeks and it was ok ,then it started again very ...
2000 Mercury Mystique GS 2.0L No Start VIN: 1MEFM6536Y
car was towed in with no start. cusromer stated while she was driving check engine lite came on,then car quit running. crank normal, good fuel pressure , good spark, but won`t start. there is no code either!NO ALARM SYSTEM. thanks to all in advance. matt
1999 Nissan Pathfinder SE 3.3L MIL Lamp on VIN: JN8ARO5YOX
My wife's car (you can feel the stress)had the "service engine soon" light on and was due for state inspection sticker. Pulled codes for knock sensor (325) and evap system (440). Replaced knock sensor and applicable gaskets. (Intake 2 plus 1 upper - knock sens... Trouble codes: 325 (knock sensor - replaced), 440 (evap - replaced box l/r wheel and attached valve)
1990 Oldsmobile Cutlass Calais 2.5L water pump VIN: 1G3NL14U4L
im having a problem with removivg the water pump on this vehicle. i have followed the normal procedure with the removal by removing the front motor mount bolts and removing the driver side bolts which connects the motor to the sub frame. however when i tried t...
1992 Oldsmobile Toronado 3.8L air bags VIN: 1G3EZ13L3N
Hello Techs; Thanks in advance! Here is my problem. The information I have says that the code R052 is that the air bag has deployed 4 times, Which is the most that the DERM can store. The informatio also says the deployments are stored on the EPROM in the DERM...
2001 Oldsmobile Intrigue GL 3.5L MIL Lamp on VIN: 1G3WH52HO1
Customer came in with MIL on. Code PO410 Sec air was stored. I was able to get the air pump to run while in the shop. It pumps plenty of air and there are no kinks or restrictions in the lines. Checked vac operated valve with scanner attached and O2 goes lean ... Trouble codes: P0410
2000 Plymouth Voyager 3.3L no shift VIN: 1C46J44R7Y
transmission will shift in to reverse and first seem like as soon as it trys to shift in to second transmission relay drops out check engine light comes on P0765 and P0700 I have checked the wires to the solidnoid pack as per P0765 code, pack is new replaced a...
1998 Pontiac Grand Am SE 2.4L Excessive Emissions, Surge, Poor Fuel Economy, MIL Lamp on, STFT &LTFT CRAWL UP VIN: 1G2NE52T8W
College girls car, came in with mil codes are above. Can't figure out what is skewing the load calc. as it is 22% at idle baro seems right for sea level (HOU TX) Map seems to be working. Remember this is speed density-no maf.Maf on scanner is 5 gm/sec.both o2s... Trouble codes: P0171, P1171 (sys lean on accel)
1990 Volvo 240 2.3L Poor Idle Quality, Hesitation, Cuts out, Stall VIN: YV1AX885XL
Car is hard start when cold, then will not stay running at idle when cold (unless fuel pump is deadheaded 100psi.), will run at 3000rpm, but does bog out on most accellerations. When hot engine car will stay running still boggs out upon acceleration as well as...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1989 Audi 200 2.2L No Start VIN: WAUGC5449K
To the Audi faithful, especially the guys that took time to make suggestions: The car has now been starting 'hot' for two days and looks to be cured. The fix was the two sensors at the flywheel on the drivers side, one being the timing sensor (with the black c...
1994 BMW 525i 2.5L Poor Idle Quality VIN: WBAHD6321R
The 525 is fixed. Thanks for the help. Some suggested that the crankcase breather might be an unfound source of false air. This early M50 only has a vent at the valve cover. The later ones use a box on the block like a Volvo that looks like the plate on the ba... Trouble codes: 41 (Air mass flow sensor).
1990 Cadillac DeVille 4.5L MIL Lamp on VIN: 1G6CD5337L
After reading the replies to my help repuest, I contacted the customer to have him bring the car back. He was supposed to bring it in, but never showed up. I'm guessing the owner of the car already got another used air pump control valve & replaced it himself.... Trouble codes: E49 (air management system problem).
1996 Cadillac Seville SLS 4.6L Stall, MIL Lamp on VIN: 1G6KS52Y2T
I'd like to thank everyone who replied. First thing I did was replace both crank sensors with dealer parts but did not help. One of the other suggestions I had was that the spark plug wires may some kind of interferance. Although I did not beleive this would f... Trouble codes: P1599.
1978 Chevrolet Corvette 5.7L relays VIN: 1Z8789S443
Hi Everyone, Well thanks to Dsolo, Jerry [...]. As most of these guys knew It was the antitheft relay but after much consideration the Cust decided that his money would be better spent on the many...
1990 Chevrolet Lumina 3.1L Poor Idle Quality, Hesitation, Stall, Will not idle VIN: 2G1WL54T7L
Hi guy! I am sorry to inform all of you that unfortunatly the customer had to have the car back. His second vehicle is now in the shop for an engine that threw a rod. Since this car did run, it was his transportation to and from work untill we finished the e...
1998 Chrysler Concorde LX 3.2L No Start VIN: 1HY4O4I4U4
most suggestions went along the line of the flywheel it would seem that differant years take differant fly wheels. since many of the post stated this was a possibility I recomened to the customer to replace with the one from the other engine after caefully che...
1999 Dodge Durango 5.9L tcc
What felt like a bind up was actually the engine shutting down momentarily. I didn't realize after switching engines I was supposed to re-synch the cam and crank with the pcm. I was thumbing through functional tests on the snap-on scanner and it had a re-synch...
1996 Ford Windstar GL 3.8L erratic shifting VIN: 2FMDA5142T
Thank you to everyone who offered help. The vehicle inquestion was driven about 400 test miles, and never faultedagain. I feel the most likely cause of this verytroublesome intermittant condition was that a small bit ofdebris had somehow got into the valve bod...
1996 Ford Mustang GT 4.6L Poor Idle Quality, Surge VIN: 1FALP45XXT
A Big thank you to all you Ford mechanics,you were all spot on in one way or another with your suggestion`s. I tested for manifold vac. leaks using a propane pipe and found nothing so I cleand the throttle housing it had some hard deposits behind the butterfly...
1997 Ford Explorer Sport 4.0L transfer case VIN: 1FMCU24E2V
thanks to a diagnostic chart forewarded by brian [...],i was able to narrow it down to the shift motor/speed sensors assy. installed a used unit with low miles and after a week and an out of town trip everthings working great so im calling it a done deal. i sur...
1999 Ford Explorer Eddie Bauer 5.0L temp gauge VIN: 1FMZU35P4X
Well this one is fixed. We removed the intake plenum to check the harness from sender to the back of the engine. Harness comes around the back of the engine and Y's up to a bulkhead fitting mounted on the firewall. Where the Y begins it is pulled tight against...
1995 Geo Metro 1.0L oil consumption VIN: 2C1MR2262S
The little oil gusseler is fixed!! Several members obviously have had this problem before - the NAPA gasket doesn't have as big of drain back holes as the factory gasket and so after driving at 75-80 [...] per hour, the oil accumulates in the valve cover/cam a...
2000 Mitsubishi Eclipse GT 3.0L Clutch VIN: 4A3AC84L8Y
To.wayne [...] thanks for your responce that is not right. and to other people thanks. to all iatn people thanks in a million. sorry for late responce 'coz' I have some ...
1992 Pontiac Trans Sport 3.8L No Start VIN: 1GMDUO6L4N
Thanks for all the help, cust decided to scrap van. Replies were for cam sensor,cam magnet, wiring at cranksensor, harness problems. I pulled the harness out for the cam/crank sensor and although the harness looked rough(cover off ,wires oil coated) all wires ... Trouble codes: 42 (est problem).
2000 Subaru Outback Limited 2.5L MIL Lamp on VIN: 4S3BH6864Y
Greetings, This was one of the toughest problems I've had in years. Never did isolate where the bad connection was but replacing the wiring harness solved the problem. Trouble codes: P0122.
2000 Volkswagen Beetle GL 2.0L fuses VIN: 3VWDD21C74
Well I never would have believed it. Got 3 replies and 2 were dead on.David [...] both hit it. The ASR and heated seat connectors were switched due to a previous glove box repair or something. Who would ever think that they would be interchan...
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