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Prev Professional Automotive Repair Technical Discussions for August 5, 2006
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Open Help Requests for All Makes and Models
Help Request Answers
1991 BMW M3 2.3L Check Engine Light VIN: WBSAK0316M
According to the Motor Emissions App guide this vehicle is supposed to have a MIL lamp. Alldata also states that there is one. The emission decal underhood shows OBD Exempt. BMW said this vehicle does not have a Check Engine light. Usually you see the words "C...
1998 BMW 750iL 5.4L MIL Lamp on VIN: WBAGK2321W
I have a challenge for BMW TECHS. We have a reoccuring code in the DME 1 side(pass side) of this V12.Code 27(P0170) mixture adaptation or running lean. We have a set procedure for these types of codes. We run fuel pressure/volume test, smoke test for air/vacuu... Trouble codes: 27 (P0170 mixture adaptation runs lean bank 1)
1988 Chevrolet Corvette 35th Anniversary Edition 5.7L Poor Idle Quality, Hesitation, Surge, Misfire VIN: 1G1YY2183J
hello guys , i got this 1988 corvette runs rough & bugs down after replace complete tune with fuel filter still the same, fuel pressure within the spec , fuel pressure regulator is not leaking, replace new mass air flow , smoke the engine for vacuum leak found...
1999 Chevrolet K2500 Suburban 7.4L Hesitation VIN: 1GNGK26JXX
We have this Chevy Suburban in here for a hesitation on light acceleration, say from a stop light then taking off. They also said that it seems to happen once in a while over 50mph when they give it more load. The problem is it is so intermitant that everytime... Trouble codes: P0107 (Map/Baro signal low or intermitant), P1107 (Same as above), P0327 (Knock Sensor Bank 1 Signal Low)
2001 Chevrolet Cavalier LS 2.2L Brake light fuse VIN: 1G1JF52461
Vehicle came in with no turn signals. Found the 20 amp mini fuse powering the brake lights/ hazards and the cig lighter were both missing. Installed new fuses and ran several test signal runs, everything checked out OK. At that time the clip holding the brake ...
2003 Chevrolet Silverado 3500 LT 6.0L fuel gauge VIN: 1GBJC34U03
hello,this truck has two fuel tanks,awhile back it was towed in for a no start,the front tank was empty and the rear one was full,also the fuse,pcm1,was blown,replaced the fuse and the rear pump did run,could not cause it to blow again,all the while the fuel g...
1999 Chrysler Town & Country (Van) LX 3.8L dash VIN: 1C4GP54L1X
The owner complains of a no start condition. Very intermit. This is how he explained it to me-- Turns the key on and the dash odometer and park indicator do not work. the cel comes on like normal along with the other lights but the gages do not work. The car w...
2002 Chrysler PT Cruiser 2.4L suspension VIN: 3C4FY48B42
road test vehicle. at 55-60 mph shaking in steering wheel accompanied by noise in the front end. control arm bushings seem ok. sway bar links and bushings seem ok. any ideas would be appreciated. thanks.
1996 Dodge Grand Caravan SE 3.3L No Start VIN: 1B4GP44R1T
This vehicle came from another shop. After testing and disconnecting sensors for possible shorts and testing wiring harness for resistance plus shorts. Not sure why but all 3 coil drivers work on ATM testing with scanner. But in when cranking coil drivers 1 an...
1997 Dodge Grand Caravan SE 3.3L aux ac unit VIN: 2B4GP44R5V
came in for no rear ac, blower works fine found ststem about 1.5 lbs low on freon reserviced with correct amount of r-134, still no cooling. Replace expansion valve still no cooling. also checked the blend door and it was closed to the heater. Performed an inn...
1999 Dodge Grand Caravan SE 3.8L Leak VIN: 1B4GT44L4X
Hello iATN!! This is a AWD Caravan purchased recently by a local youth minister and his wife from a local dealership. I inspected the vehicle after he first purchased it because He had a 90 day (you're basically screwed anyway...) warranty on it. I found a few...
2000 Dodge Neon ES 2.0L clutch VIN: 1B3ES46C7Y
Ok, I have no clutch engagement on this neon. I pulled the codes and it had a p0645 for ac clutch relay circuit, so I inspected the wiring to the clutch and found that the blue wire was broken at the pigtail, so I was happy that it was going to be fixed but af...
1994 Ford Ranger STX 2.3L Surge, Cuts out VIN: 1FTCR14A5R
Vehicle intermittently acts up at half throttle or more and under 1500 rpm (lugging). Vehicle acts as if it shuts off for a quarter to half of a second, then jerks forward and runs normally. In reverse it acted up once and chirped the tires. This can be a real... Trouble codes: 332 (KOER low EGR flow detected)
2004 Ford F-250 Super Duty Harley-Davidson Edition 6.0L MIL Lamp on VIN: 1FTNW21PX4
Hi there, I have a Ford F250 here which just wont go away, I have previously posted a similar request and following the replies i changed the exhaust back pressure sensor and the fault virtually went away. what it does now is less often but still occurs, the m... Trouble codes: P2263 (tcsc boost performance), P0401 (egr insufficient flow detected)
2004 Ford Ranger XL 2.3L alternator VIN: 1FTYR10D14
vehcle had a bad alt, and a draw. batt goes dead over nite. found the fuse box on pass florboard shorted. replaced fuse box batt now holds charge over nite. now for the alt. it was charging 13.8, when a/c is turned on voltage drops down to 13.1 and somtimes 12...
1992 Geo Tracker 1.6L No start-runs rich VIN: 2CNBJ18U7N
Vehicle drove in on 2 cylinders. Found blown headgasket between cyls. 1 & 2 and ground at T-stat housing broken off. Replaced headgasket (valves OK and light resurfacing), installed new T-belt (valve timing was 4 teeth retarded. . corrected this fault) adjuste...
1997 Honda Civic EX 1.6L Hesitation, Cuts out, Stall VIN: 1HGEJ8146V
This vehicle runs ok cold. As the temp climbs up the problem becomes more frequent. When you try to accelerate under load in second or third gear the engine just bogs down. The only way to keep it from stalling is to return the throttle back to idle and let th...
1988 Jaguar XJ6 3.6L Blower Motors VIN: SAJHL1646J
Vehicle came in with no ac compressor leaking replaced compressor and drier retrofited to r134a can not get fans to come on on either ac or heat blows good on defrost only compressor cycling but no fans removed head to check switch was changed and working remo...
1996 Jeep Grand Cherokee Limited 5.2L coolant sensor VIN: 1J4GZ78Y2T
We have tried everything on this car and the display on the center console intermittantly comes up with coolant sensor bad. The car runs fines does not over heat. It statred after replacing the radiator with a new factor radiator. I have replaced the coolant r...
1984 Mercedes-Benz 500SEL 5.0L Vac. line routing. VIN: WDB1260371
I need some help from the european side of the pond. This 500SEL had some engine work done two years ago and the shop did a bad job on the vacuum lines because they had no information, and the car came to me with a bad idle. I have repaired the issue with idle...
1992 Mercedes-Benz 300E 3.0L Stall VIN: WDBEA30D4N
Hi Euro techs, I am in need of some insight on how to diagnose this problem. The customerís complaint is that when coming to a stop the car dies. He said sometimes it feels like it misses a couple of times before it dies and sometimes he has no clue it has st... Trouble codes: 18 (iac)
2003 Mercedes-Benz S500 5.0L compressor VIN: WDBNG75J13
This vehicle came into shop with poor a/c cooling from all evaporators. First tech. re-claimed freon, replace both rear expansion valves and re-charged system. System was much better at cooling, but could be colder. Two days later second tech, also re-clamed f...
1993 Nissan 240SX 2.4L Excessive Emissions, MIL Lamp on VIN: JN3MS37A1P
Hi...I am probably going to head to the egr temp sensor on monday..need a break..I have included a pic of the egr/cannister/scv sol. this is located on back of cyl head ..dont have a concise schematic for it so part of my post is in regards to any corrections ... Trouble codes: 32 (egr problem)
1969 Pontiac Grand Prix 400CID Temp gauge VIN: 276579P271
Temperature gauge doesn't read correct. Started with a Borg Warner temp sensor, read too hot. Replaced with a Delco sensor, read hotter yet. Replaced with a used sensor read too cool. What I would like to know if anyone knows the resistance spec to test the ga...
2000 Pontiac Grand Prix SE 3.1L No Start VIN: 1G2WJ52J6Y
brain fart time, it's too hot to think. car starts and dies, will not run. has good fuel pressure, spark and pulse. scanner will not communicate. all fuses are good. whats next??? I think security key is ok
1974 Porsche 911 2.7L No Start VIN: 9115110346
HELP.. What looked like something we could handle turned into a nightmare. Good customer came in and brought with him some collapsable tubes for the oil return and gave us ALL kinds of info to replace them Easy fix , until... The vehicle had gotten 3 quarts ...
1998 Saturn SL2 1.9L I/P fuse panel VIN: 1G82K527XW
Hello, This car belongs to my technician, we don't do domestics so we don't have access to much info. The car will lose the radio and accessoies as well as the running lights. Wiggling the F5 wire on the back of the I/P fuse panel will get a temporary repriev...
1992 Toyota Land Cruiser 4.0L charge light VIN: U-HZJ81-00
Hi there, I have an old landcruiser which is giving me some grief. the Alternator charge light has been coming on and off this is concerning the customer. when the light comes on the voltage gauge stays at the normal reading of just over 14 volts. i have teste...
1990 Volkswagen Corrado G60 1.8L wheels VIN: WVWDB0509L
i don't think this is a very technical question but maybe ill get in deeper than i expect. its my own car. the suspension is all original. yes, the struts have probably served their purpose, but they seem fine. ride height is right on, it corners exceptionally...
1999 Volkswagen Beetle GL 1.9L Cuts out VIN: 3VWCF21COX
Gentlemen, this is one of our personal daily drivers, not a customers car. Intermittently it will cut out while driving. Pull over to the side of the road and shut key off and try to start and it may crank a little and will start on maybe the third try. Take o...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2005 Acura RL 3.5L No Start VIN: JH4KB16595
I removed the ECM, removed the cover & ckd for water intrusion, it appeared that water had been there, but was dry, I dried it out with air to verify no further moisture present & re-installed it. I could read PIDS, but it still would not fire injectors or coi...
1988 Chevrolet K1500 Cheyenne 5.7L rear half of drive shaft VIN: 2GCEK19K4J
Sorry about not giving some specs like auto trans and the like, but I thought the VIN provided that automatically. Anyway, it's out the door and on the way back to Illinois. The true length of the driveshaft was 53' and the RPO label for the gear ratio was GT4...
1995 Chevrolet C2500 Cheyenne 5.7L passing gear VIN: 1GCGC24KXS
I fixed the truck by replacing the knock sensor. Before replacing the sensor the knock sensor code would come back, after clearing, with key on and engine off. I don't really understand how or why it fixed it because, other than no passing gear, the trans. wor...
2003 Chevrolet Blazer Xtreme 4.3L Brake pedal VIN: 1GNCS18XX3
We received 9 prompt and informative replies...thanks to all!!! The replies suggeated mostly ABS or master cylinder problems. We had previously pinched off the brake hoses with no change so the problem is likely in the ABS or master cylinder. The truck is ...
1987 Dodge Dakota 3.9L Timing Chain VIN: 1B7GR14M3H
Hi again, Heres another fix with iATNs help. I did put a new timing chain(pn:[...]), and yes the bulletin will work on an 87. I also gave it a new water pump, even though someone suggested it wasn't wort...
1987 Dodge Dakota 3.9L steering shaft VIN: 1B7GR14M3H
Another vehicle fixed and down the road! I had to do a quick fix on this one because he needed it back. I just slotted both sides of the female part of the 'd' shaft with a cut-off wheel. I made a couple of 1/4' steel blocks to fit on either side of the cuts w...
1997 Dodge Caravan 2.4L MIL Lamp on VIN: 2B4FP25B7V
Morning techs Well sure enough you have to buy the gas tank to get the lines from the roll over. It just came in this morning at a mere $600.00!! Well thanks to everyone and have a good weekend Steve [...] Trouble codes: P0455, P4442.
1997 Dodge Caravan SE 3.0L Misfire, MIL Lamp on VIN: 2B4GP4530V
Burnt exhaust valve # 6,no miss whatsoever,no check engine light,sorry it took so long to repost,van was gone for a week. Thanks again everyone. Jim Trouble codes: P0300, P0306.
1996 Ford Explorer XL 4.0L Pressures VIN: IFMDU34X2T
Thanks for all the replies. Sadly, we might not ever know what is wrong with the truck. The customer has not returned and never allowed us enough time with the truck to really dig in to it.
1999 Ford Windstar LX 3.8L MIL Lamp on VIN: 2FMZA514XX
The fix was the lighter fuse which also powers the ECM, the reason I didn't check it before was because I Had scan data for a short time, and I don't know why. Trouble codes: P0500, U1039.
2001 Ford F-150 XL 5.4L Misfire VIN: 1FTRWO8L21
They say its the smiple things that will kill you. Most replys said look at the coil as a problem. Well the fix was a coil that would come and go. We found the bad coil by going into mode 6$.By switching the coil around when the engine temp would go from cold ...
1997 GMC C1500 Suburban 5.7L door locks VIN: 1GKEC16R9V
I was able to zero in on the keyless entry system. The key fob was not able to be reprogrammed. also the keyless entry is the only thing that separates the drivers door from all the others, and the drivers door was working differntly than the others. Customer ...
1996 Honda Accord EX 2.2L Misfire VIN: 1HGCD5658T
Most replied about egr passage, i pulled the cover off and all cylinders were plugged cleaned. on valve adjustment is at high side of spec's. i even pulled the exhaust manifold and watched it run with manifold off. problem is not valve adjustment. compression ... Trouble codes: 301 (cly one missfire), 302 (cly two missfire), 303 (cly three missfire).
1966 Pontiac parisienne 350CID hydraulics VIN: 5764670148
Thanks to all responded to my problem. Got mixed reviews as to proper fluid. Our manual called for ATF trans fluid ( we found this after reading ALL of the instuctions in the procedure) and that it was a self bleeding system. First thing we did was purge the e...
1994 Pontiac Grand Prix SE 3.4L Unknown VIN: 1G2WJ52X7R
Thanks to all who replied! As most of you said the top of the oil pump drive was leaking. One of the first replies suggested I use a die grinder to put a small notch in the top of the oil pump drive,pop the drive up until it hits the head and take the new o-ri...
1999 Porsche Boxster 2.5L Starting VIN: WP0CA2986X
thanks to all those that responded the problem was clutch pedal switch that was working intermitently, Replaced Switch and car now cranks every time the first time thanks to all and to IATN.
1996 Volkswagen Jetta GL 2.0L alarm system VIN: 3VWSA81H6V
thanks,to all with the sequences,esp.Daryl from Maryland and all the others its hard for me to type! but sincerly thanks..the key? is the passenger side door for some reason that and the 1/2 hour system works?by fooling around i stumbled upon another system,ye...
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