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Prev Professional Automotive Repair Technical Discussions for January 22, 2005
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Help Request Answers
1999 BMW 323i 2.5L MIL Lamp on, no increase in rpm VIN: WBAAM333XX
Hello BMW Techs This car came in late friday night before closing and we only had time to retrieved codes that were stored and look for testing procedures in our database, but could not find any. The customer concern is that she steps on the accelerator and th... Trouble codes: P1580, P1510, 01 (ABS no code description), 5 (SRS Firing circuit belt tensionerdriver), 6 (SRS firing circuit belt tensionerpassenger), 16 (SRS driver side belt switch)
1987 Buick Regal Limited 3.8L reverse VIN: 1G4GM11A2H
Hey, I need some old school tranny guys help. I have this 1987 Buick LeSabre that had no reverse. I dis-assembled the trans and found that the low and reverse clutches were wiped out, so I overhauled the trans. Now it has reverse when it is cold, but once the ...
2001 Chevrolet Impala 3.4L temp.gauge VIN: 2G1WF52E31
Hi all we have a inop. temp gauge,it stays down in the cold range all the will bump up a little when key is turn on-but stays in cold range with engine at normal temp.we checked and found no codes in the system.coolant is full,alldata wiring diagrams s...
2001 Chevrolet Blazer LS 4.3L four wheel drive VIN: 1GNCT18W21
hello everyone, this vehicle would blow #15 10 amp fuse only when in motion. fuse will burn in 2wheel drive & four drive. will not burn out while idling & wiggled the wiring harness at the tranfer case & transmission area. four wheel drive engages & disengage...
1999 Ford Explorer Eddie Bauer 4.0L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FMZU34E4X
vehicle came in with all the same codes two weeks ago but today it sound as if it has a vacumn leak under plenum so i put smoke machine on vehicle no signs of leak... has erratic idle and misfire codes and 02 sensor codes lean po171 and po174 can hear what sou... Trouble codes: P1116, P301P
1988 GMC C1500 Sierra SLE 5.0L Poor Idle Quality, Hesitation, Stall VIN: 2GTDC14H1J
1990 GMC K1500 Sierra 5.7L batteries VIN: IGTEKI4K2L
This pick up has two batteries but it is a gas engine? The owner says it came from dealer that way. The right batt/wiring looks as convetional p.u does. the left batt. has small guage wires one goes to grd. and a pos.wire that goes to what looks like a motorcr...
1992 GMC K3500 Sierra SLE 7.4L Excessive Emissions, Poor Idle Quality, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 2GTHK39N9N
Runs very rich,at times stalls and idle fluctuates.Other times runs really good.Has no noticeable power loss and does not use any oil.I also replaced knock sensor and wire back to ecm as this truck has a 4l80e trans and does not use esc module.Also noticed it ... Trouble codes: 43 (esc)
2004 GMC Yukon XL 1500 SLE 5.3L n/a VIN: 1GKEC16Z94
I need to find out what the DTC code PO455 Points To. Thank You
1989 Honda Accord LX 2.0L carb VIN: JHMCA5630K
this is my honda it started acting wierd on start up i set the choke it starts and dies almost right away then it takes forever to start again when it does it idles at 3000 after it wams up the choke comes of and it idles fine uder heavy accell it falls on its...
1991 Honda Civic 1.5L No Start VIN: 2HGED6345M
This is for all you experienced honda techs out there. This car has an intermitent crank with no start problem. The times that it has occured, I was caught off guard with diagosntic equipment. However I do know that it is fuel related. One of the times that it...
1991 Honda CRX HF 1.5L Poor Idle Quality VIN: JHMED8360M
We have a 91 Honda CRX HF with a rough idle and what feels like a miss when engine is under load at low rpm's with slight throttle pressure. Recent tune up did not fix problem but if the lights or heater is on engine will idle normally. We cleaned IAC and inta...
1992 Honda Civic VX 1.5L Hesitation VIN: 2HGEH2363N
Any thoughts???
1992 Mazda B2200 2.2L Poor Idle Quality, Hesitation, Stall VIN: JM2UF3231N
This vehicle was originally towed to us as a no start. We found that the fuel sender wiring had corroded away at the sender head so a new Mazda OEM pump assembly was installed and all appeared to be fine. One week later the vehicle returned with a very difficu...
1997 Mazda 626 DX 2.0L 2nd,o/d VIN: 1YVGE22C9V
Car lost 2nd and O/D at the same time. and O/D light is flashing when driving.
1997 Mazda Millenia 2.5L Engine Oil Leak VIN: JM1TA2218V
Doing a timing belt on this vehicle primarly due to mileage, but also for a oil leak noticed coming from the timing cover. I found a lot of oil in the covers after tearing the front down, including cam & crank pulleys fully expecting to find a seal leaking. Di...
1981 Mercedes-Benz 380SL 3.8L No Start VIN: BA45A98800
Mercedes Wizards of iATN, Vehicle came in for a head gasket replacement. Vehicle was driven in. Compression test indicated no compression on cylinder #6, good on all other cylinders. Car was overheating. Removed left cylinder head and replaced head gasket. N...
1992 Mitsubishi Diamante ES 3.0L Misfire VIN: JA3XC47S9N
Car 1st came in 4 months ago. Skipping and running like dirt. Cleaned battery terms (nasty) sent on way. Came back after 1 week. Running like dirt, Replaced NGKs, OE cap and rotor. and ign coil. Checked T-belt alignment- old but holding, car shipped after mult... Trouble codes: #22, #23
1990 Nissan Stanza XE 2.4L Cuts out VIN: JNFIFU21SX
hello ,this would be my first posting on iatn,thank you in advance for your support,this a car i thought i had fixed ,you will be driving for 15 to 20 minutes and it will cut out at about 2500 rpm,and as soon as it does it once it will do it consistantly after...
1993 Oldsmobile Cutlass Supreme 3.1L dead batt VIN: 1G3WH14T4P
Hi all we have elec.drain of 1 amp.that is gone when removing the fuse marked elec from the inside fuse box (under the glove box).this fuse feeds the radio, frt.door latch switches,hvac control,instrument cluster and the passive restraint control module.i can ...
2001 Oldsmobile Alero GL 2.4L No Start VIN: 1G3NL52T01
hope someone can help me... car wont start cranks ok has spark injector pulse and fuel pressure compression is 175 on a cold almost wants to start but just wont backfire or anything my snapon scanner says that 1621 is almost always a bad ecm ... Trouble codes: 1621 (ecm prom memory problem)
1996 Plymouth Grand Voyager SE 3.3L Hesitation, Cuts out, Stall, MIL Lamp on VIN: 2P4GP44R6T
Hello,appreciate any help This vehicle came in with intermitant mifire and code P0205 inj.#5 control ckt. fire improperly.Injecter resistance is good,pulse width at injecter 3.0ms at idle,#5 injector scope pattern looks normal,fuel pressure is 50 psi all the t... Trouble codes: P0205
2001 Toyota Sienna CE 3.0L unable to fuel vehic VIN: 4T3ZF19C31
HELLO EVERYONE, THIS IS MY FIRST TIME POSTING A REQUEST SO I HOPE I HAVE NOT LEFT OUT ANY IMPORTANT INFO. ANYWAY, this vehicle has problems when filling at the pump. it has a history of being unable to fill without stopping the nozzle. you must fill this vehic...
2001 Toyota Camry CE 2.2L Oil pressure VIN: 4T1BG22KX1
Hello All, We performed a complete engine overhaul on this Camry due to a over rev which resulted in rod bearing & crankshaft damage. All went well until the final test drive when the oil light began flickering. The engine is getting good oil flow top & bottom...
1994 Volvo 850 2.4L brakes VIN: YV1LS5525R
Hi, I have this volvo that has had multiple visits at other shops for a brake noise and shudder/vibration. We put new rotors (napa) and pads (raybestos ceramic) on the rear. The noise hasn't returned, but the vibration either never went away or is back. This v...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1977 Buick Regal 5.7L engine VIN: 24557H7G15
Thank you to all that replied, I get the hint - Drive the car! 90% of the responses just confirmed the idea that we need to heat it up; more than idle can do, and burn everything out of the exhaust. I did come in early one Sunday morning and drove it aroun...
2000 Cadillac DeVille 4.6L Cooling Systems VIN: 1G6KD54Y7Y
Thanks again for the replies. The customer has declined to repair the engine. Don [...] hit it right on the head with the fact that these block can crack in specific spots or become porous. Don sent me an article that anyone having similar p...
1996 Chevrolet Blazer 4.3L Hesitation, Misfire VIN: 1GNDT13W8T
Got lots of good sugestions but most of them I already thought of. One good one I didn't think of was possible transmission fluid being pulled in to the intake but, the customer has not returned to have it checked out again. He was not impressed, I'm not sure ... Trouble codes: P0300 (Random engine misfire).
1999 Chevrolet Astro 4.3L Surge, Misfire, MIL Lamp on VIN: 1GNDM19W8X
Thanks to all for the suggestions! After scoping the crank sensor, it was replaced. The new sensor inmmediately put the cam retard at 0 as it should be. We kept the van for a couple days, with repeated test drives. The customer came by yesterday and told us it... Trouble codes: P0300 (Random misfires).
1999 Chevrolet Tahoe LS 5.7L Misfire VIN: 1GNEK13R3X
Thanks to all who replied the fix was to clean the fuel system with the motor vac system letting it soak over night with cleaner in the system Trouble codes: P0304.
1990 Dodge W150 S 5.2L battery VIN: 1B7GE16Y2L
Thank you IATN for being that great family you are. I received about 10 replies and all of them where right on the money, but I want to specially thank to Jim [...] because he explained so clearly and detailed that I didn't have any trouble to determine that ...
2003 Dodge Ram 3500 Truck 5.7L temp gauge
Sorry it took so long to close. this vehicle was under warranty and we sent it back to the local dealer four times in a month for this problem.after many thermostats,coolant changes?, bleed procedures and even a re-flash they put on a new set of heads. we just...
1997 Ford F-350 7.3L speedometer VIN: 1FDKF38F6V
Thanks to all who replied, especially Charles [...]. Just as you said, I found the tone ring inside the rear end broken. The new one will be here today and I will install it onto the carrier and re-assemble. Have a great weekend. Joe
1994 GMC K2500 Suburban SLE 7.4L fail safe harsh shift&code 86 wont go away VIN: 1GKGK26N2R
well the way we fixed this 4l80 is we went back and checked the size of the hole we drilled in the valve body plate in the sol ckt and we found out the hole was .076 and it is supposed to be .041 or below this was flooding the solenoids and keeping them shut o...
2000 GMC K2500 Sierra SL 5.7L Fuel gauge VIN: 1GTGK23R3Y
Customer has not returneed as of yet, he is not sure if he want to go with a new or used cluster. If and when I get the truck back, I will post my findings. Thank-you all for the replys, they sent me in the right direction...
1985 Mercedes-Benz 300SD 3.0L heating VIN: WDBCB20C6F
Hello all. A big thanks for all the responses. After rechecking the heating control system, i discovered it was the control panel switches. Replaced it and works great. Thanks again.
1996 Nissan Altima GLE 2.4L No Start VIN: 1N4BU31D1T
Thank you to all who offered help. Kelly [...], Joe1920, Randy [...] hit the bull's eye. Oil leaking into the distibutor caused the optical se... Trouble codes: P0325 (Knock sensor low or high voltage), P0335 (CKP sensor signal missing), P1400 (EGR valve solonoid improper voltage).
2000 Plymouth Neon High Line 2.0L Stall VIN: 1P3ES46CXY
thanks to all we changed the crank sensor and so far so good it didn't stall in the passed few days some replyed to change the p/s pressure switch but the car would stall in drive way with no load on steering so we let it go for now thanks again
1994 Pontiac Grand Prix SE 3.1L dome light VIN: 1G2WJ52M4R
Sorry it took so long to post a fix but the customer just brought the vehicle back. The repair was a 2nd headlamp switch. The first was defective. Thanks to all that replied.
1993 Saturn SL 1.9L Poor Idle Quality, MIL Lamp on, HIGH IDLE VIN: 1G82H5596P
THANKS TO ALL!! 17 relies! We have created a very good Data Set in the Fix Data Base for future reference. The Idle problem turned out to be a lot of very small vac leaks that added up. At first they did not show up with carb cleaner sprayed and the engine wou... Trouble codes: 26 (quad driver).
1993 Subaru Legacy L 2.2L No Start VIN: JF1BJ6327N
Hello Techs Thanks for all the tips. I decided to try the coil, only because it was easy to switch out. It has been 5 days and 2 of them were damp cold days, just e- mailed the customer and she said it started everyday.I hate 'throwing darts' like that, but ...
1999 Toyota Camry LE 3.0L Surge, MIL Lamp on VIN: JT2BF22K9X
tested vehicle some more and read lots of info . didnot come up with any concrete results. customer purchased a used canister unit with vsv attached. installed for him and cleared codes. so far so good. learned alot about system . Trouble codes: P0446, 61.
1999 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K8X
Greetings my fellow technicians. First I would like to thank the 10 technicians who took their time to reply to my post. Your help was greatly appreciated. From the replies I received I fiquired that since the canister, evap purge vsv and three way vsv are new... Trouble codes: 441 (Incorrect Evap Purge Flow).
1996 Volkswagen Jetta GLS 2.0L No Start VIN: 3VWSA81H7T
Well i tried. The customer asked that we send it to the dealer. And they tried an ecm a crank sensor and a dist sensor. Still no luck. Seems this car has a wiring problem. I had alot of good replies most pertaining to the cranksensor and to use a volkswagon de...
1999 Volkswagen Jetta Wolfsburg Edition 2.0L cruise control VIN: 3VWPB81H5X
Thanks to all who replied the bit of info i needed no b+ to swtich without the frt wheel turning i had power but i heard no clicks from the module but by test the vac pod for gas pedal and vac motor tested ok i put a module in it and that fixed it again thats ...
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