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Prev Professional Automotive Repair Technical Discussions for April 30, 2011
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Help Request Answers
1997 Audi A8 Quattro 4.2L Electronic VIN: AUHKF98476
Hello all tech. special audi tech... I really need your help. I am working on this audi for 2 days now , not thing major, the only thing happen is: while driving intermittently a chime and message center appear let me know that driver door open,I have been rep...
2003 Audi TT Quattro 1.8L Ride Control VIN: TRUWT28N92
Hello Audi Techs: In our business we say we see problems in two's & three's...well this is the third challenge! We have a client who likes to drive the canyons hard and for a few weeks now he has had this noise that we have herd. The noise is notice in sharp l...
2003 BMW 745Li 4.4L Bluetooth VIN: WBAGN63463
After the modules programing, the GT1 couldn't finish upgrading the navigation module. The navigation system work well, there is not problem. When we try to pairing the customer phone to the bmw bluetooth, the phone could not find the car bluetooth. Only twice...
1999 Buick LeSabre Custom 3.8L Poor Idle Quality, Surge, Cuts out, Stall VIN: 1G4HP52K0X
ok so a 1999 buick lesabre custom with 3.8L comes in and customer complains of engine light on and vehicle stalling around corners. i scanned the vehicle retrieved current code of p0102 MAF circuit. cleared the code and went for a road test found under moderat... Trouble codes: P0102 (MAF circuit low frequency)
2003 Buick LeSabre Custom 3.8L Poor Idle Quality VIN: 1G4HP52K63
This car came in with a rough idle and erractic fuel gauge reading. We replace the fuel pump . We swapped the egr valve . Also the tps senor, also the map senor, and the mass airflow meter , t there is 5 volts present in all units. But it keep coming back with... Trouble codes: 1635
2006 Cadillac CTS 2.8L Converter Clutch
I am a shop foreman at a chev.cadillac dealership. Working with cadillac line is new for me since i started working at this dealership. I am struggling with a 2006 cts 5l50e transmission that has a tcc surge,chuggle at the 45-55 mph range when tcc control sole...
1994 Chevrolet K2500 5.7L 1-2 Shift VIN: 1GCHK24K4R
1994 k2500 truck 4 speed auto transmission with ECM and electronic shift 5.7k throttle body obdI connection. So here it is... customer complaint of harsh shift 1-2 and he replaced transmission. Now it is here and only code is for knock sensor. all the readings...
1997 Chevrolet K2500 Suburban 7.4L Poor Idle Quality, rough idle VIN: 3GNGK26J1V
this suburban came to us with rough idle concerns,felt like intermittent plug missfire only at idle.we replace plugs with double help,ck'd cap and rotor- someone already'd cam synch offset which was 2 deg.-within limits.we noticed high pitc...
1999 Chevrolet C3500 6.5L no shift VIN: 1GBKC34F3X
trans came in for no reverse. all forward gears were ok. rebuilt trans and installed a transgo sk4l80e at the same time (also installed the transgo actuator feed limit valve in the valve body). replaced rear band, reaction carrier, clutches, low roller, int sp...
2007 Chevrolet Silverado 2500 HD LT 6.0L MIL Lamp on, Goes into limp mode VIN: IGCHC24K67
My fellow IATN members, I am hoping you guys can help me with this problem truck in my shop. This truck has been in 2 times for this problem. The first time it was in the truck was not showing and symptoms of a problem except the MIL illuminated. After testing... Trouble codes: P2134 (App 12 correlation)
2007 Chevrolet Silverado 1500 LTZ 5.3L Electric/heated seats VIN: 1GCEK19J67
Bought this truck new in 97. Driving down the highway one day, I adjusted my electric seat. It moved ahead and would not move back. Fortunately the seat back still operated and I was able to tilt it so I could still drive. I parked the truck for 4 days wonderi...
2002 Chrysler PT Cruiser Limited 2.4L radiator VIN: 3C8FY68B32
i have flushed the system twice tried using the radiator cleaning fluid and the vehicle still over heats about 1/4th of the middle higher
2002 Chrysler PT Cruiser 2.4L engine temp VIN: 3C8FY68B32
car overheating before water pump and timing belt were replaced after replace it was reaching temp of 230 degrees at most customer says it was smoking at one time has not happen to us at the shop test drove over heates around 65 mph over heats when idling for ...
1997 Dodge Ram 3500 Truck 8.0L L/R Drum VIN: 1B7MF36W5V
Thanks in advance... This truck was used for plowing and looks like it has 343,000 on it because of the salt. The Hydroboost system has been serviced prior by replacing several hoses as well as power steering cooler due to leaks. Lastly the steering box was re...
1998 Dodge Caravan SE 3.3L accesories VIN: 1B4GP45G8W
After starting vehicle, nothing inside has electrical power. After a couple of times of this the s.e.s. light comes on. Have not been able to duplicate problem since the first ig. switch was changed approx a year ago. Van comes in with multiple codes for lack ...
1999 Dodge Ram 2500 Truck 8.0L Poor Idle Quality VIN: 1B7KF23W4X
This vehicle was brought in for rough idle after 20-30 min hot soak.I found short term fuel trims bank 1 -30% and bank 2 -50% during problem.Which only occurs after restart after 1 minute or so of running and only lasts for about 2 minutes then trim readings g... Trouble codes: P0720 (output speed sensor)
2001 Ford Taurus SE 3.0L Misfire VIN: 1FAFP53U81
looking for help...# 1 injector will stop working on acceleration on cold engine.. only under load..idle will work can listen to #1 injector with stethascope and hear a noticable change in tapping sound when injector stops firing...have replace # 1 ...
2004 GMC Sierra 3500 WT 6.6L knocks and smokes VIN: 1GDJK342X4
Any help would be greatly appreciated. I bought this 04 GMC 6.6 LLY with 98k with the understanding it needed an engine, was told noisy. Keeping this truck to use as wrecker for shop. Checked truck out this week. Knocks bad when accelerating and extreme amount...
2000 Jeep Wrangler SE 2.5L Hesitation, Surge, Misfire VIN: 1J4FA29POY
I greatly appriciate any input on this problem, I have a 2000 wrangler with 2.5 std . while driving you can hear it misfire/skip slightly but rarely shows a misfire on scan tool and usally only 1-2 register on cyl 3 . [using mac mentor scan tool ] it usally sm...
2004 Lexus RX330 3.3L Poor Fuel Economy VIN: 2T2HA31U34
He is a friend of mine and he complain about poor fuel economy and code set p2197 so I replace the b2s1 o2 sensor and I find out the check engine light not even working.A week later he said still poor mileage so I scan it the code p2197 came back again and i u... Trouble codes: P2197
1997 Nissan Pickup SE 2.4L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on
Hello iatn members, I have a nissan pickup here that has some "since you" complaints. This truck went to another shop to have a coolant leak fixed (welded some kind of pipe) and replaced water pump, customer says that they didnt make it down the road before it... Trouble codes: P0400, P0505, P0120
2001 Pontiac Grand Am SE 2.4L engine VIN: 1G2N52TF1C
Got a bit of a weird one here, customer has a very intermittent no start, has no obvious rhyme or reason, just when it decides not to start it doesn't and every time it has been towed to the shop it has started up at the next key cycle and has run beautifully ...
2004 Saturn Ion-1 2.2L MIL Lamp on, inaccurate fuel gaug VIN: 1G8AJ54F94
Howdy, Need help here folks. i've spent alot of time on this saturn. I'll cut to the chase, Sets Po446 one day after clearing, alldata and OBD say po446 is a direct result of a vent circuit restriction in the Evap system, Ive replaced the vent valve and a faul... Trouble codes: P0446
1992 Toyota Pickup 2.4L engine VIN: NO VIN ME
bought the trk as is with no spark from get go,no cranking signal from dist.n got the dist replaced,got spark now,compression is good at 110/120,restabbed dist on purpose at 180 degrees and will not even backfire.its automatic so i can`t pull start.i can hear ...
2007 Toyota Sienna LE 3.5L power steering VIN: 5TDZK23C47
Hello all, 1-Have lost assist below 15mph or 1100 rpm. 2-Senna had dripping water pump, replaced with OEM Toyota water pump. Did not R&R engine. Had removed PS pump off to side, did not unbolt any ps lines. Had to remove lower engine mount, jack engine up. Hav...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1999 Chevrolet Corvette 5.7L Data Link Connector VIN: 1G1YY32G7X
thanks to everyone once again, i solved that mystery. Turns out the power wire which is supposed to be pin 16, someone previous had moved it to pin 9 clear across the other side of the pin. since the plug was reversed i did not notice it until and pulled the p...
2005 Chrysler Pacifica Touring 3.5L abs module VIN: 2C8GF78445
Repair, Cleaned all grounds the ground from the battery to transmission after removing bolt had a build up of corrosion cleaned area ran a new ground from trans to frame I used the same studs that the factory used. I also cut the positive battery cable and use...
1991 Ferrari 348 TB 3.4L Clutch VIN: ZFFKA35C00
Thanks to all who replied. Unfortunately no one had encountered the same problem. However from the replies and my research elsewhere it would appear that the slave cylinder in particular and the whole clutch design in general on these cars is problematic. T...
1995 Honda Civic LX 1.5L No Start VIN: 1HGEG8551S
Thanks to all of you who responded to my help request. The majority believed that the ECM was the problem. I was also told that the main relay is a common problem on these. The ignition switch contacts often fail as well, and can cause intermittent problems. ...
2000 Lincoln Continental 4.6L L.R. Air Valve Solenoid VIN: 1LNHM97V7Y
Well this one is fixed. It ended up being the VDM was fried. Thanks to David [...], he hit it right on the head. No Voltage come out of the VDM. I opened it up and it was fried. I installed a new one, all is fine.Thanks again.
2000 Pontiac Bonneville SE 3.8L Low Trac Light comes on Intermittently VIN: 1G2HX54K8Y
OK sorry to wait till the last minute to close this, had to get the car back one last time (waist some more time) & I viewed all the Wheel Speed Sensors MPH on my Modis while on a lift while twisting & pulling gently on wiring looking for it to register a MPH ...
2001 Toyota Celica GTS 1.8L MIL Lamp on VIN: JTDDY32T51
I ended up replacing the front 02 sensor and the MAF sensor... All the data is still the same. Ran all recommended tests from everyones posts and everything was fine. With my first post, vehicle had light on and then it went off but the code was in history. ... Trouble codes: P0171.
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