Automotive Technicians Technical Discussion and Fixes for Dec 23, 2006

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Open Help Requests for All Makes and Models

	Help Request	Answers
	1993 Acura Legend L 3.2L electric window VIN: JH4KA7658P butchers/some techs remind me of butchers, help! this acura legend came in with the door panel removed already and wires hanging out with butt connectors of all colors some wires connected and some not. i replaced the window motor and checked the switch. i am ...	View
	1995 BMW 540i 4.0L Poor Idle Quality, Misfire VIN: WBAHE532XS hello fellow techs this beemer came in with an engine misfire and we have tried to come up with something that would allow us some help ,first the fuel pressure is 44 psi, the exhaust is not plugged as we first thought , the whole right bank is dead as far as ... Trouble codes: 1222 (o2 sensor circut)	View
	2000 BMW 323i 2.5L ews Hello all customer bring this car after he tryed to install a remote starter on it. This e46 is no more cranking. when i scan dme, i got a fault related to ews. if i scan ews:no fault. When i do a test with an exange dme-ews-key all is ok. my question now: if ...	View
	1991 Cadillac DeVille 4.9L heating VIN: 1G6CD13BXM car came in for no heat i have flushed cooling system checked t for glogging and blew out heater core, i checked air mix door and programmer seems to be switching fine,but i have heat only on passengers side of car defrost and floor checked all duck work seems...	View
	2000 Cadillac DeVille 4.6L Excessive Emissions VIN: 1G6KD54Y4Y this customer came in asking us to install 2 new air pumps per local dealership diagnosis. we installed new pumps (with an updated inlet tube relocation kit). in the process of replacing the pumps we found and repaired a open voltage source wire to air pump. t...	View
	1987 Chevrolet S10 Blazer 2.8L 3 -4 VIN: 1GKCS18R9H hello group... seasons greetings i bought this jimmy wif low miles on crate mmotor,but only had 1st and 2nd gear. i opened it up and it had worn clutches,3rd n 4th were gone. so i put it back together and it werked ok for obout 2 weeks...upon acceleration it s...	View
	1997 Chevrolet K3500 Cheyenne 7.4L hard start VIN: 1GCHK39J1V hi guys i have two 1997 k3500 chevy duallies with the same problems. the problem is starting hard after warm. at cold start say in the morning both trucks start right up like brand new, but after that all day they have extended cracking before starting. acting...	View
	1998 Chevrolet K3500 Cheyenne 6.5L Poor Idle Quality, Cuts out, MIL Lamp on VIN: F6WF017624 Thank you for your time to start.This truck originally came in with battery problem.Would lose voltage in couple days,connections were terribly dirty so batteries would never fully charge.When checking for draw i first start with test light between battery Neg... Trouble codes: P1214 (injector pump timing offset), P0216 (injector timing circuit at times)	View
	1999 Chevrolet Tahoe LS 5.7L MIL Lamp on VIN: 1GNEK13R9X I will truly be humbled if someone can tell me what I am missing.At 103,000 mi the intake gasket was changed(typical GM coolant leak). Then this Tahoe(my wife's) developed an intermittent dying problem(but would start up immediately. It had an aftermarket alar... Trouble codes: P0308	View
	2001 Chevrolet Silverado 2500 HD 6.6L ses VIN: 1GCHK29141 This truck will intermittently go to nuetral at a stop sign. The PRNDL will flash on #1 and the circle around the overdrive D indicator will not appear. Unfourtunatly it is so intermittent i have not seen any of this. I did pull codes u2106 lost com with trans...	View
	1997 Chrysler Sebring JXi 2.5L Poor Idle Quality, MIL Lamp on VIN: 3C3EL55H9V Hello all! Happy Holidays! This car has a high idle all the time, about 1500 rpm. Another shop put an aftermarket idle speed motor on it, but nothing changed. I was checking resistance in the ISC wires to the pcm and resistance would change when I moved the ha... Trouble codes: P1294	View
	1994 Ford F-150 XL 5.0L Poor Idle Quality, Cuts out, Stall VIN: 1FTEX14N6R This F150 will hardly run and will only idle. When you press the accelerator, nothing happens. It will continue to idle badly but will not run up the rpms. It will backfire some into the intake, but will not increase speed. If you disconnect the MAF sensor, it...	View
	1998 Ford Contour SVT 2.5L MIL Lamp on VIN: 1FALP68GXW We smoke tested vehicle, no leaks found, except from breather hole at idle air control valve, (not sure if this is normal, have that used smoke machine too often on a ford) Long trim on bank 1 and bank2 max out at 25%, There is no driviablity problem except th... Trouble codes: P0171, P0174	View
	2000 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAFP53U6Y Checked EGR system,DPFE reading was .15 volt koeo.Replaced DPFE,reading now 1.05 volts koeo and with engine running and I open egr valve with vacuum pump engine idle almost dies and DPFE reading drops to .15 volt.Customer drove vehicle for 5 days then lite cam...	View
	2001 Ford F-150 Lariat 5.4L Windows, Sift interlock, Dome lights, Wipers VIN: 1FTRX17L71 Blowing GEM module fuse # 15 (5amp). This truck came in with no wipers, electric windows, and shift interlock release not working. This is the same fault from 2 months ago. Changed the fuse and it works ok for a couple of days then blows again. No pattern to b...	View
	2002 Ford Taurus LX 3.0L Poor Idle Quality VIN: 1AFP58S12G Happy Holidays to all, This car came in with the Check Eng light on. Chaecking for codes came up with the P1506 in the memory and no codes in the KOEO or KOER. Idle speed is at 1150 RPM at warm idle. The IAC has the correct resistance and moves w/ voltage is ... Trouble codes: P1506 (Idle Air Control Overspeed Error)	View
	2000 GMC Savana 3500 5.7L steering wheel VIN: 1GDJG31R3Y This truck came in with a steering wheel vibration. Test drove and sometimes the steering wheel will vibabrate like a bad tire. Everything in front end is tight, and there is no rotor runout. Sometimes when you drive it, the steering wheel will only vribrate w...	View
	2000 GMC Jimmy Diamond Edition 4.3L Hesitation VIN: 1GKDT13W0Y The problem this vehicle is having is that it falls flat on its face when you try to accelerate for a few moments, and then accelerates normally. There are no codes present. Plenty of fuel pressure(60 psi idling and 65 psi under slight load in gear with brake ...	View
	2001 Jaguar S-Type 4.0L shift solonoid VIN: SAJDA01P81 car came in with transmission fault on dash and check engine light on. pulled code p0795 - pressure control solenoid c (3) circuit fault.test drove car with car in drive fault will reoccur every time driven if car is driven manually shifting up and down fault ...	View
	1970 Mercedes-Benz 280SL 2.8L Mechanical VIN: 1130441201 Hey Gang, This should be a easy one for those who have some old repair manuals collecting dust. We are putting a rear main seal in this old Benz and I'm wondering about the torque values for the main and rod bearings. Thanx in advance and a very Merry Xmas an...	View
	1998 Mercedes-Benz ML320 3.2L No Start VIN: 4JGAB5439W car was in the body shop for 15 days rear qrt panel repair. car was pick up and driven 5 miles to customer house and car would not start, they jump started the battery after it wouldnt start. was towed in. car cranks 2-3 revolutions check for spark ok check fu...	View
	2000 Mitsubishi Montero 3.5L Tip Tronic Happy Christmas every one, i have here a Japan Domestic Market Mitsubishi Pajero 3.2 turbo Deisel with tip tronic tranny. Vehicle came to us to check if its ecm could work in a similar vehicle thats in the shop for repairs and a suspected bad ecm(the vehicle w...	View
	1991 Nissan Pathfinder SE 3.0L starter VIN: JN8HD17Y7M will not start with key has voltage from nutral safty switch. has voltage from ing. switch. if u jump relay will start. will not start with key. also no check eng light. will run if jumped at relay.	View
	1992 Nissan Sentra E 1.6L Pump and/or Rack & Pinion VIN: 1N4EB31P8N Vehicle - The vehicle in question is a 1992 Niaasn Sentra 4 door sedan with a 1.6 L. engine assembled in the USA. Complaint - The owner is complaining that, after starting her vehicle in a parking lot and driving only a short distance, her vehicle experienced...	View
	1991 Oldsmobile Delta 88 Royale 3.8L No start VIN: 1G3HN54C7M We have a fun one that has made us all forget our names. It had orginally jumped timing and came in on a tow truck. We replace the timing chain and gears. Repaired the wiring harness for the cam sensor to the ignition module. We have good comression and fuel ...	View
	2000 Pontiac Montana 3.4L intake manifold VIN: 1GMDX03EOY This van has a coolant leak from intake manifold. I am working on this for a friend. I am a trans and diesel tech so don't work on these much. Another shop told him that the heads were leaking also. There is a small amount of sludge under radiator cap and a sm...	View
	1991 Toyota MR2 Turbo 2.0L No Start, NO MIL LAMP VIN: JT2SW22N6M Additional guidance would be helpfull for me, 1) No spark 2 ) No check engine lamp on illuminated koeo question fuse in rear relay block in engine compt 15 amp labled EFI is dead, i don't think I have a valid wiring schematic to see what powers this circuit T...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2002 Audi A4 1.8L MIL Lamp on VIN: WAULC68E62 Perform second smoke test, no leak found, recheck and found one vacuum line close by air cleaner not plugged in all the way, reconnect and secure, but did not clear check engine light , customer call back two days later, and light have been off for more than a... Trouble codes: P0456 (small evporative leak).	5
	1996 BMW 740iL 4.4L MIL Lamp on VIN: WBAGJ8323T Hello BMW Techs I would close this post now, due that the customer took the car and did not gave a specific date of when he will bring the car back, important point was to make sure ,if you check on either DLC connector, in the case of the OBDII connector the ...	8
	2003 BMW 325i 2.5L MIL Lamp on VIN: WBAET37493 Hello BMW Techs To work on this car is a must to have the autologic or GT1 scanner, due to that the DME control unit must be updated first, before any other repairs are done in the car, in my case after updating the DME control unit with the autologic scanner ... Trouble codes: 1D, 1, 14, 29, 60 (undefined), 1D, 1, 42, 29, 73 (undefined), 1D, 1, 42, 29, 74 (undefined), 1D, 1, 42, 29, 61 (undefined), 2742 (misfire detection cylinder 1), 1D, 1, 42, 28, 92 (undefined).	8
	1999 Buick Regal LS 3.8L e brake VIN: 2H4WB52K4X thanks to all that replied to my help request Norm from washington gave me a detailed fix thank you sir the other six replies all had the same info and I thank you all I adjusted the shoes first and then the cable but the brake was not that great still didn't ...	7
	2003 Chevrolet Trailblazer North Face 4.2L Mechanical VIN: 1GNDT13S73 We replaced the actuator on the left (not the high one). That actuator controls the blend door for floor and panel. The upper control actuator controls the blend for the defrost. We had a hard time getting the actuator to mesh with the gears but we got it. Thi...	2
	1997 Dodge Intrepid 3.5L Ride control VIN: 2C3HH46T1V Hi Thanks for all your help, it is my mistake the strut top mounting nut is not tight all the way, I did disconnect the front sway bar for road test, noise still there, so I heavily bounce and rock the vehicle from a dead stop position until I heard the noise,...	6
	2000 Dodge Grand Caravan 3.0L waterpump thanks to everybody for their replies. after a few more hous of testing the noise became present in the shop by loading the engine. after eliminating many ideas. we found the rear engine bracket that bolts to alternator bracket had a loose bolt and was vibrati...	9
	1996 Ford E-250 Econoline 4.9L MIL Lamp on VIN: 1FTFS24Y3T thanks for all of your replies. some suggested reprogramming per an older ford bulletin, i did not pursue this as we have worked on this vehicle for many years and we knew this was a new problem. the fix was replacement of the pcv valve with the PROPER motorcr... Trouble codes: P0171 (lean air/fuel ratio), P0174 (lean air/fuel ratio).	13
	2003 Ford Explorer XLT 4.0L wipers VIN: 1FMZU73K93 Thanks for all the replys, the concensus was to put in a new multifunction switch. Put a new switch in and by golly could not even get around the block without it wiping(with the switch in the off position). What I did find was a very loose ground by the batte...	7
	2003 Ford F-150 Lariat 4.6L abs VIN: 1FTRX17W43 I haven't received this truck back yet, owners will be gone for holiday's, I will close this post due to time constraints. a majority of the post mentioned loose tone rings on back of rotor's, I did not check this prior to posting, should have I have found bad...	6
	1986 GMC K1500 High Sierra 5.0L trans/tcase VIN: 2GTEK14H1G well guy thanks again for all your help. it was greatly appreciated. i put in another np208 test drive o.k. but only time will tell. (intermintant problum) thanks again joe	10
	1999 Jeep Cherokee Sport 4.0L keyless entr VIN: 1J4FF68S6K the cust left with no patients, i hope to have them back, or a similar vehicle so i can learn something - thanx for all the replies. sincerely, alex.	7
	1999 Mercedes-Benz ML320 3.2L Hesitation, Surge VIN: 4JGAB54E5X hi guys this car had to be relearn there is a throttle stop relearn procedure that has to be performed after replacement of throttle actuator this can be done with factory equipment I hope this help someone in the future	13
	2003 Nissan Sentra GXE 1.8L MIL Lamp on VIN: 3N1CB51A43 Evidently this problem was exceptionally rare as none of the help posts were articulate with the exception of one referring to a specific type of resistor that I could not find and wasn't in any of the schematics. Another contributing factor with the inability... Trouble codes: P1111 (variable intake valve solenoid fault), P1444 (purge system fault).	4
	2000 Pontiac Grand Am SE 2.4L Door Locks after further testing at relays as suggested,believe bcm is in need of replacement.customer would not approve repairs.was able to cycle locks at relays.thanks for the help.	3
	1996 Saab 900 S 2.3L anti-theft VIN: YS3DF75B1V thanks to everyone who replied to me with this one ,everyone of you said under the drivers seat ,i did look here first of all but did not lift the underlay -i thought it would have been on top of the carpet (like the 9000 ezk ign unit)anyway it will be the pas...	11
	2001 Subaru Outback 2.5L MIL Lamp on VIN: 4S3BH66571 thanks guy you hit right on the head the test connector was plugged in i thought those went the way of the dodo bird. i feel pretty dumb thanks again george Trouble codes: P0500, P1540, P1590, P1591.	8
	1999 Volkswagen EuroVan MV 2.8L Misfire, MIL Lamp on VIN: WV2MH2701X Most think its the egr valve or maf Maf is new so thats not it. It has not returned back yet so stay tuned i'lll post a fix when its fixed. thanks for the help. Trouble codes: P0300, P0306.	4

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