Automotive Technicians Technical Discussion and Fixes for May 14, 2005

Join Now

Prev	Professional Automotive Repair Technical Discussions for May 14, 2005 International Automotive Technicians' Network (iATN) - Members Only	Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for All Makes and Models

	Help Request	Answers
	2002 Acura TL Type-S 3.2L cd player VIN: 19UUA56872 This cd player is in my own car and does not get used very often. Last weekend I turned on cd player and got an "error 1" message on the cd display and the word "check" is flashing. The unit has had 6 discs in it for months and I'm wondering if someone has tri...	View
	1991 BMW 750iL 5.0L eml light on VIN: WBAGC8317M Car came in for emission repair. wner did not state that every so ofhten the throttles fail to resond on acceleration. and the EML Light comes on. When ever the EML light is on there is no response of throttle bodies. We feel at this time we have the emission ...	View
	1993 Buick LeSabre Custom 3.8L Cuts out, Stall VIN: 1G4HP53L5P Hello again, and thanks to all reading this. 1993 Buick LeSabre, 3800 mpfi, maf system, well maintained, runs well. customer complaint of acts like it will stall at times, loses power, speedo drops a little, and then resumes power. Thorough ignition testing re...	View
	1999 Cadillac DeVille 4.6L engine VIN: 1G6KD54YOX Vehicle was brought to me for overheating problem. Has been ran very hot. Customer was told had blown headgasket. Has Northstar engine, I drove vehicle, ran great was not able to make vehicle run hot. pressure tested cooling system, found radiator cap bad. rep...	View
	2004 Cadillac Escalade 6.0L compressor VIN: 1GYEK63NX4 Ok GM Techs, we need a little help. (its 5:00 on Friday and we are trying to get some info for Monday morning) I know this electronic system has been used for several years on a lot of the GM SUV's but we have not seen any problems here yet. The customer got t...	View
	1995 Chevrolet S10 LS 4.3L Excessive Emissions VIN: 1GCCT19Z9S This car failed the asm emission test for 15 mph and 25 mph for excessive nox. First we found the Egr vac control solenoid to be less then 2 ohm. So we replaced it. Under the diagnosis it said that there could be damage to the ECU. After replacing the sol.,We ...	View
	1997 Chevrolet S10 4.3L Hesitation VIN: 1GCCS14X4V Fellow iATNers, This is poor old dad's vehicle who is, of course, from out of town and needs some assistance with his troublesome Vortec. The archives yield many issues with 4.3 and 5.7 varieties alike. This engine never once stalls, it hesistates with moder...	View
	1998 Chevrolet C1500 Cheyenne 5.7L Mechanical VIN: 2GCEC19MXW hi everyone.this truck came in with an a/c problem.i replaced the compressor and a/c drier.i evack and charged the system.the pressure on the high side is 150.the presure on the low side is 70.that is only with one cane of fr. a134.checked for restriction and ...	View
	1998 Chrysler Town & Country LX 3.8L Electronic VIN: 1C4GP54L7W Hello Group I installed a reman Chrysler trans in this van 8 months ago . Now it's stuck in 2nd I've checked the input & output sensors they seem to work fine as are the connectors.With the snap-on scanner I get 1 code P0755 whitch is 2-4 solenoids.I can't ch...	View
	1999 Dodge Ram 1500 Van 5.9L oil in coolant VIN: 1B7HF13Z2X Greetings and Salutations to all of you great techs, how is oil geeting into coolant system? Intake and heads have been removed and inspected for gasket leaks, tears ,cracks, etc. Checked head and block surfaces for flatness. heads were less than.003 and block...	View
	2000 Ford Taurus LX 3.0L Unknown car wont shift till around 4000rpm then shifts hard, shapon scanner shows a pid for shift seloniod fault but always says no, fluid is clean and full,my GUESS is bad selinids but is there any other things to check first or any other test i should make before tr...	View
	1992 GMC Safari SLE 4.3L unknown VIN: 1GKEL19W5N Van cranks takes about 10-15 bumps on the ign to catch and start(not starter).Tested and have good spark and fuel, but I hooked the computer up to it was not recieving tach/rpm however still had spark. im not sure what else we can test or replace. We looked fo...	View
	2000 GMC C6500 7.4L No Start VIN: 1GDG6H1B5Y When you try to start this truck it pops back thought the the intake or the exhaust and sounds like you advanced the timming the starter will stop turning sometimes before it starts.It's like the computer thinks the eng is already The starter will not ingage w...	View
	2003 GMC Yukon XL 1500 SLT 5.3L master cyclinder VIN: 1GKEC16T33 this vehicle is used by police depatment and was driven very hard during a persuit. Brakes were very hot upon inspection.	View
	1998 Hyundai Elantra 1.8L expansion valve or orfice tube VIN: KMK52JHY7K This car came in for A/C check to get ready for the hot season. System was 0.5 lbs low with no leaks found.No previous repairs made.No signs of sealers used. Evac and recharge system and found a restriction evap.core. The outlet line is freezing up and low sid...	View
	1994 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Cuts out VIN: 1J4GZ58S3R engine rpm drops only in reverse, sometimes stalls. occurs only after for 20-30 minutes of driving. transmission replaced because of chattering in transmission front pump. stalling immediately has occur before replacing transmission	View
	1997 Jeep Cherokee Country 4.0L Misfire, MIL Lamp on VIN: 1J4FJ78S9V Vehicle in with CEL on, No driveability complaints from cust. Sets misfire codes. Can watch misfires occur with DRBIII on all cylinders except #3. Only counts at RPM 1880 - 2050. Anything above or below counting stops. Scoped cam and crank sensors sync looks d... Trouble codes: P0300, P0301, P0302, P0304, P0305	View
	1993 Lexus ES300 3.0L hydraulic rad fan system VIN: JT8VK13T6P Once engine is warm a rattlely knock seems to be coming out of the rad fan motor (hydraulic) at idle & the motor is spinning over fine. Rev engine and rad fan motor speed increases accordingly. Noise is not there when engine cold. If you put your hand on the h...	View
	2004 Mercedes-Benz S600 5.5L Cuts out, Misfire, MIL Lamp on VIN: WDBNG76JX4 Hi everybody, i have this S600 AMG V12 with twin turbo that was bought brand new from Mercedes USA & brought to Nigeria and drove for only 1,500 KM, the problem is that when i drive the car for about 20mins it will dies and cut off but will restart immediately... Trouble codes: 0330 (Misfiring damages three-way catalyst), 0301 (Misfiring of Cyl 1), 0302 (Misfiring of Cyl 2), 0303 (Misfiring of Cyl 3), 0304 (Misfiring of Cyl 4), 0305 (Misfiring of Cyl 5)	View
	1990 Oldsmobile Delta 88 Royale 3.8L Poor Idle Quality, Surge, Stall VIN: 1G3HN51CXL Car came in yesterday chugging and stalling. Fuel pressure is good, sensors are good. TCC was unplugged when it arrived; plugged back in. Shift codes are still there. Quad drivers control fuel delivery and shifts. Problems with the ECM? Appears to be fine, loo... Trouble codes: 31?, 27 (2nd gear shift problem), 28 (3nd gear shift problem), 29 (4nd gear shift problem)	View
	1994 Pontiac Firebird Formula 5.7L No Start VIN: 2G2FV22P2R no start condition: good spark, good fuel pressure but has random injector fire. ignition scope pattern shows good spark line fire to all 8 cyls. injectors have constent power but looses ground signal at times but randomly. one injector will fire and then not ...	View
	1997 Pontiac Grand Am SE 2.4L Hesitation, Surge, MIL Lamp on VIN: 1G2NE12T7V Car Came in with check engine light on with codes p0335a ckp circuit,and code p0341b camshaft position sensor circuit,road tesed vehicle on normal acceleration about 30-40mph vehicle starts to surge or buck ease of gas surge or buck goes away only happens betw... Trouble codes: P0335, P0341	View
	1993 Toyota 4Runner SR5 3.0L Poor Idle Quality, Misfire VIN: JT3VN39W8P This toyota came in on the hook, started and terrible white smoke out tailpipe. Upon removal of cylinder heads, gasket definitly bad at #6 cylinder. Due to milage machine shop reccommended valve job and it was done. Everything went together great. Upon start...	View
	2000 Toyota Tacoma DLX 3.4L ecu VIN: 4TAWN72N7Y Customer said after the fact ABS light would come on and then go out at times. This started after a ABS assisted panic stop. Now ABS light on all the time and Check Engine Light is on also. Here we go! Engine code for Mass Air flow sensor.LTFT 29. Sensor wir...	View
	1998 Volkswagen Golf GL 2.0L MIL Lamp on VIN: 3VWJB81H3X check engine light is on.check for codes unable to communicate with control unit. check dlc connector for power and ground all o.k. anything common to this problem? car also has drivability issues.skips and bucks.thanks	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1994 BMW 325i 2.5L trans VIN: WBABJ6327R Symptoms are completely gone for 2 and 1/2 weeks. I waited a while to post this 'FIX' message to see if problem was going to come back. This may have been fixed in one of two ways. 1) I replaced the trans EPROM for a second time- upgrading to the new EPROM i...	5
	1990 Chevrolet C3500 Cheyenne 5.7L alt VIN: 1GTHC34K2L Hello:Thanks for all the replies,there was 20 in total.Due to the fact that this is a landscaping contractors truck,we have not been allowed the glory of fixing it due to his schedule and work load.But we have learned that is we connect the dump to the aux bat...	20
	1995 Chevrolet Tahoe LS 5.7L 4-3 downshift VIN: 1GNEK13KXS Customer finally brought vehicle back for me to test a little further.First thing I did was line pressure test & watch solenoid commands to see if pressure was bleeding off as solenoids were being commanded on as suggested by Sean and noted nothing unusual.He ...	6
	1998 Chevrolet Camaro 3.8L No Start, Stall VIN: 2G1FP22K8W The vehicle is fixed it was an intermittent problem with the ignition module. The scan tool showed no rpm and then the next time it would show rpm. the fuel injectors would pulse and then they would not. Many other problems would come and go all involved fuel ...	12
	2000 Dodge Ram 2500 5.9L starts off in 2cnd VIN: 3B7KC26Z3Y Thanks to all who took time to reply. The responses were as follows. 1 The throttle cable adjustment is critical, and can cause a 2-3 shift flare. 2 The second band servo seals cut or damaged. 3 The govenor pressure sensor and transducer faulty. Also reccomend...	5
	1997 Ford F-250 XL 7.3L data VIN: 1FTHX26F7V A couple of the replies I recieved refered to a possible problem with the fuel filter heater which were excellent suggestions but we had already checked it. Another suggestion was try another scan tool but the problem happened with both our Genisys units and o...	7
	1998 Hyundai Tiburon FX 2.0L 1st Gear Only VIN: KMHJG34F8W First off, I would like to thank those that responded to my SOS. Jim [...] nailed it on the head. The drive spline had stripped. After talking to the customer a bit more he disclosed that he was backing up and placed the vehicle in drive while ...	5
	2001 Hyundai Elantra GLS 2.0L Coolant in #2plug Thanks Jeff and Josh for your replies, Jeff said Upper rad hose weeps causing a Overheat condition but not detectable because of sender not able to read because of low coolant,Thus causing head gasket problems. Josh Wrote back and said it would be a first ...	3
	2000 Infiniti G20 2.0L MIL Lamp on VIN: JNKCP11A3Y We informed the (new) customer that he needed a new Airflow Sensor. We gave him a price including the diagnoses and installation charges. He told us he would have his wife call to set up the next appointment. I called them yesterday she told me he found a ai... Trouble codes: 171 (Lean Baank 1).	8
	2000 Lexus LX470 4.7L Auto Height Control VIN: JT6HT00W5Y The fix was to replace the Left front height sensor. The computer does not have any logic errors. Even though the left front height sensor was reading opposite of the right front height sensor, it was within the acceptable range. The computer either sees a g...	4
	1996 Mercedes-Benz S600 6.0L Monitors won't run VIN: WDBCAA76E7 Hi Friends, Here's my summary: Pat from GA and Mirek from NJ both emphasized the need for good working o2 sensors which I ohm tested and scoped and foung good but according to Pat they had to be new even if they were good. So against my better judgement I repl...	11
	2001 Volkswagen Passat GLS 1.8L Missfire #2 & 3 VIN: WVWAC63B11 Thanks for all the input on this. We did some pinvoltage checks on the ECU and traced some false/incorrect reading which originated at the Throttle Body. We replaced the Unit with a known good Unit, Problem solved. Called the Friendly Shop and explained the pr...	15

(Also Available: All, Asian, Chrysler, European, Ford, GM.)