Automotive Technicians Technical Discussion and Fixes for May 3, 2012

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	Help Request	Answers
	2003 BMW 325i 2.5L Obdii VIN: WBAEN33493 I have a 2003 325 wagon. Everything acts fine with the car. I can communicate to the ECU with my Autologic, but I can not communicate with any other module. Check all fuses. Any thoughts? Air bag light is on and no other lights.	View
	2004 BMW 325i 2.5L Check Engine Light On VIN: WBAET37484 We performed a smoke check previously. Checked for leaks from crankcase vent system, engine vacuum leaks, visual check under hood. Fuel pump was replaced a couple months ago, client stated check engine light stayed off longer than before,approx 3 weeks. Check ...	View
	1971 Buick LeSabre 5.7L No Start VIN: 452391Y118 1971 buick lesabre 350.4 / customer complains that the car wont start after sitting for a day or two un less he pours gas down the carb, then it runs fine, no hesitation or stalling.I am not very familiar with carb. engines, has a mechanical fuel pump but no f...	View
	1999 Buick LeSabre Custom 3.8L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1G4HP52K7X car came in as no start. found plugged cat. replaced cat. carf then started but stalled intermittant. found that tapping on maf caused a stall. replaced maf. care went away for 3 days. came back in then with a p0102. scoped maf - 0-50hz. checked 12v on pink an... Trouble codes: P0102	View
	2001 Cadillac Seville STS 4.6L power windows VIN: 1G6KY54971 drivers door window works fine but the other 3 door windows won't work from any switch i try and also the power door locks won't work.is there a module for the windows and could that be bad.has anyone seen this problem before.thanks for any help i may recieve....	View
	1999 Chevrolet Blazer 4.3L No Start VIN: 1GNCS13W4X I drove the truck into the garage and replaced the blower motor. It required me to remove the ECM to gain access. When I put it back together, it wouldn't start. I did the 30 minute passlock relearn 10 times but no luck. I realized that I forgot to disconne...	View
	2001 Chevrolet Malibu 3.1L No Start VIN: 1G1ND52J01 Hi, Car came in on the hook. Complaint ...no start... Started runs good...rpms shows up on scanner.. But not on tach in dash...24x shows 16000 about???... Any help in figuring this out or , what to test next would be appreciated.. Have a great eve. Thanks ... Trouble codes: P0336, P1189	View
	2002 Chevrolet Trailblazer LT 4.2L MIL Lamp on, Won't accelerate These 2 codes were in the system and wouldn't clear. Checked according to flow chart and it says the pedal position sensor is faulty. Replace sensor and problem still exists. When looking at pedal position sensor voltages one is at 4.96v and the other is at 5.... Trouble codes: P1271 (Excessive Difference between pedal position sensors), P1275 (Accelerator Pedal position sensor circuit 1)	View
	2005 Chevrolet Equinox LS 3.4L Engin VIN: 2CNDL23F55 I have been working on this truck for a few years. Mostly pm / Wheel bearing E G R valve and tube. It came in and customer comp of noise from the E G R when cold. Started it this morning and i have lifter noise. Pulled the dip stick and i got chunks of some th...	View
	2004 Chrysler 300M Special 3.5L No Start, Stall, MIL Lamp on VIN: 2C3AE76K84 The vehicel came in on it own power but it would stall, and it would take few trys to get it started again. Sometimes a dozen trys. Put it on a scanner and came up with P0340. We replace the cam and crank sensor with aftermarket one, but the same issue. So we ... Trouble codes: P0340	View
	1975 Dodge D300 Custom 5.9L No Start, warm only=no start VIN: D61FG5J012 This is an old d600 trk, w/360 gas motor that was converted to LPG along time ago. Use to start fine always. Last couple years--will crank & start great cold, but after ran for 15-20 minutes, & its warm, it still cranks great but will not start if cranked, bu...	View
	2002 Dodge Ram 3500 5.9L Abs Light VIN: 2B5WB35Z42 Keeps setting code 63 , checked wiring all tested ok, replaced abs module with oem module still comes on and off, all brakes are new, it is my church van and we want it safe thanks ahead for any help	View
	1999 Ford Windstar SE 3.8L Eng VIN: 2FMDA5244X Truck will start & run a sqeak noise at front of eng .remove drive belt no help.the noise will come in the truck will die have a code for crank sensor .do i need a new dist drive ?	View
	1999 Ford F-150 Lariat 4.6L Starting VIN: 2FTRX17W8X HELLO EVERYONE, I need your help on this truck really bad,customer towed vehicle for no start condition(wont turn over).I checked the battery and terminals and found ok ..I checked the fuses and found 15 amp starter has blown,replaced it and starter now crank...	View
	2000 Ford F-350 Super Duty Lariat 7.3L Misfire VIN: 1FTSW31F2Y this vehicle has a constant misfire or loping on cyl. 3, cold or warm, it never goes away. ive tried everything i can think of to diagnose or remedy the problem besides pulling the head. all 8 injectors have recently been replaced with Jasper reman units. if t... Trouble codes: P0269 (cylinder 3 contribution or balace malfunction)	View
	2000 Ford Explorer XLT 4.0L Forward and reverse engagement VIN: 1FMZU73X3Y My Dad brought his Explorer to me informing me it had stopped pulling in any gear after it was fully warmed up. I verified complaint of no engagement/slipping after about 10 miles of driving. It began as a flare from 2nd to 3rd, 3rd to 4th, and 4th to 5th. The...	View
	2000 Ford F-150 Lightning 5.4L Misfire VIN: 2FTZF0731Y I will try to make a long story short. This 2000 Lightning is making me crazy. But I don't discard a obvious or easy solution... Car had a heads job at a Ford dealer. But dealers are not used to this car/engine model because it is a imported car from USA a...	View
	2002 Ford Expedition Eddie Bauer 5.4L shocks VIN: 1FMFU18L82 Hi Group The customer droped off his Expedition with air suspension on all 4 corners. He also brougth 4 new shocks, which I should replace, but while reading in all data, it sais deflate the suspension wit scan tool!! I have a otc pegisys and a Bosch VCI trio...	View
	2003 Ford F-150 King Ranch 5.4L MIL Lamp on VIN: 1FTRW07L83 Came in for a mil light on. Code P0401 stored. Had no KOER codes. I have made sure everything is clean in the way of passages. Tried a factory DPFE and apply sol. It has 20 inches of vac. at sol. but will only apply 2 inches of vacume to egr valve during KOE... Trouble codes: P0401 (EGR low flow), P1408 (EGR low flow during KOER test)	View
	2005 Ford Expedition Eddie Bauer 5.4L shift interlock wont release VIN: 1FMFU18575 Hey and thanks in advance. i have a 2005 ford expedition that will not come out of park when you hit the brake. the wire that comes too it which is a white wire has no power coming to it. alldata and mitchel are very vauge in the circuit description. im lookin...	View
	2007 Ford Explorer XLT 4.0L Hvac VIN: 1FMEU73E67 We hear a vacuum leak like a whistling noise on aceleration in drive and not as noticable in park and when you shut the engine off sounds like its coming from passenger side floor hvac area. We installed a new vacuum canister by the blower motor and still hear...	View
	2003 Isuzu NPR 4.8L can not scan VIN: JALB4B1413 tried numerous scanners ,checked fuses,do not see fuse for ecm	View
	2000 Jaguar S-Type 3.0L message display VIN: SAJDA01C1Y Hello,we have this 00 stype "cat system failure"message on dash.do not know what it is.customer took vehicle to dealer,was told conectors for rear electrical shock is bad and cannot get conector,got vehicle back one was disconected the other one was broken and...	View
	2005 Kia Sedona EX 3.5L Poor Idle Quality, Hesitation, Stall, Poor Fuel Economy VIN: KNDUP13165 This vehicle arrived with a P0102(MAF Low Frequency)and it would barely idle.I found the MAF sensor dead and I replaced it.The DTC did not reset but the running bad was not affected.Here's what I have.The vehicle is running rich as it can.The fuel trims are pe...	View
	2003 Lincoln Town Car Signature 4.6L Fuse 2.14 VIN: 1LNHM82W33 Hello folks, I am working on this 2003 Town Car cab, which intermittently blows fuse 2.14 in the dash fuse block. I can never seem to figure out what actually causes this fuse to blow. It seems very intermittent. In my head I figure the clutch coil is drawing ...	View
	2006 Mazda 3 i 2.0L Poor Idle Quality Diagnosed failed variable intake manifold vacuum actuator diaphragm leaking, causing loud and high pitched squealing noise when vacuum applied (at idle & low rpm). Mazda tells me this actuator is part of the manifold & is almost $800. Has anyone had this probl...	View
	1997 Mercedes-Benz C230 2.3L Air Bag VIN: WDBHA23E9V Customer came in with no wiper operation. They had said that the fuse kept blowing, but it was still good. Went further and found that the wiper motor was already replaced with a salvage yard part. Then I powered up the motor manually with a power probe and it...	View
	1998 Nissan Pathfinder LE 3.3L Cuts out VIN: JN8AR05Y2W The problem occurs intermittently at various speeds - between and 40 to 70 mph. We have tested the TPS and it is within all specs both voltage and ohms. Under slight load the vehicle will display symptoms of cutting out. No DTCs occur. We have also removed the... Trouble codes: P0340 (Cam sensor signal), P0305 (Misfire cylinder 5)	View
	1998 Nissan Maxima GLE 3.0L MIL Lamp on VIN: JN1CA21D2W Vehicle came in for check engine light on with a code for a knock sensor. Put in a knock sensor and got a code for P1320. Checked all connectors and wiring, saw no problems. Replaced all 6 coils, no change. Car has no misfire, took it on a long test drive, onl... Trouble codes: P1320 (Primary Ignition)	View
	2003 Nissan Sentra GXE 1.8L No Start, Cuts out, Stall VIN: 3N1CB51DX3 Customer had car towed in said it died and wouldn't start. After it arrived it sat for about 3 hours before I had a chance to look at it. I went out, turned the key and it started right up. Pulled it into the shop and saw the CEL was on, it showed code P0335 h... Trouble codes: P0335 (Crankshaft/Camshaft sensor)	View
	2005 Nissan Altima S 2.5L Surge VIN: 1N4AL11DX5 car came with a surging at idle and surging/hesitation under load.no codes found active or pending. cleaned throttle body, idle re-learn done with Carmen scan lite. has a solid idle 800 rpm. upon test drive car still had surging under load. replaced maf, repla... Trouble codes: P0507	View
	1998 Oldsmobile Intrigue GL 3.8L Misfire VIN: 1G3WS52KXW Well I have looked in the old records and it doesn't see any actual repair. So here it goes again. I have a consistant misfire on cyl #5 at idle only. raise the rpms to 1200 and it clears up. we have replaced spark plugs & wires, coil and ignition module no ch...	View
	2002 Oldsmobile Bravada 4.2L No crank VIN: 1GHDT13S02 I have a passlock code i have tried a relearn procedure with no luck. Could i have a bcm problem?	View
	2000 Pontiac Grand Prix SE 3.8L No Start, Stall VIN: 1G2WJ52K5Y Ok driving us nuts, this grand prix has a very intermittant stall. Ive had it running for the past 50 mins with no problems. The codes listed were history and there are no "current" codes. We've tried an ignition module due to the symptoms. When it does finall... Trouble codes: P1626, P1629, P1811	View
	2004 Pontiac Grand Am GT 3.4L High Cooling Fan VIN: 1G2NW12E54 Vehicle came in with a complaint of engine running hot, temperature guage indicating hotter than normal. Scanner shows 230 degrees f and no command for fan relay 2 or 3.I believe that GMs activate high fan at 226 degrees f. I am leaning toward a problem with F...	View
	2000 Saab 9-5 SE 3.0L No Start, crank no start VIN: YS3EF58Z9Y need help on this saab v6. 2-3 weeks ago vehicle came in for stalling and sometimes not starting. there was a crank sensor code (forget now which code) and we replaced crank sensor and no more stalling. now customer reports intermittent no start. we were abl... Trouble codes: P1135, P1141	View
	2003 Saab 9-3 Linear 2.0L compressor VIN: NXX2052563 One for you Saab guru's. Got this '99 9-3 that the compressor clutch will not engage and it has a code B2360 a/c pressure sensor voltage short to ground. I can command the compressor on with my Tech 2. There is no voltage to the a/c pressure sensor in the cond...	View
	1987 Volkswagen Cabriolet 1.8L Hesitation, Misfire VIN: WVWCA0156H Vehicle intermitantly looses a cylinder under load and idle. Ignition parts are in near new condition but the problem feels just like a bad wire under accel. Fuel pressures at fuel distibutor seems ok control pressure climbs from 30 -60 psi and fuel pump max p...	View
	2003 Volkswagen Jetta TDI 1.9L bucks and jerks VIN: 3VWSP69M33 The car acts like it has bad spark plug wires bucking and jerking. It is only at 1800 rpm and 2800 rpm (NO CODES) it is in all gears and all load conditions when it hits those rpms. It runs good at all other rpms. Cruise on or off nothing make the symptons cha...	View
	2003 Volkswagen Passat GL 1.8L MIL Lamp on This car is killing me! Last year car came in for coolant loss and overheating. I did t-belt water pump,stat,coolant outlet at rear of head. Also plugs and chain tensioner gasket. The car has been running great till last week. Here's what happened, customer wa... Trouble codes: P0011	View
	2008 Volkswagen Beetle S 2.5L Starting VIN: 3VWRG31C88 I have a fully updated 5052 with a current GEKO certificate. The tech who knows how to adapt the keys is out. I am stuck. Where do I get the "Customer personal identification number"???	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1996 BMW 328i 2.8L starter VIN: WBACD3328T Well IATN Members are wonderful with there insight and thanks to every one that helped in this. the faulty heater valve was the source of the problem I unplugged and the vehicle would start and the fuse would not pop so again Thank you very much to every one.	8
	2006 BMW 330i 3.0L cam shaft VIN: WBAVB33516 Thanks to all who replied. The broken intake cam bolt was returned to the customer when she had the car towed away from BMW dealer. The cam bolt, 10mm steel not aluminum, had the threads stretched into an hour glass shape and sheared off. The torque spec for t...	11
	2006 Cadillac CTS 2.8L No Start VIN: 1G6DM57T96 THANKS TO ALL WHO REPLIED. REPLACED ECM WITH DEALER UNIT AND ALL WORKED OK. Trouble codes: U0100 (Loss communication to ecm).	6
	1990 Chevrolet P30 7.4L hvac control head We called alot of rv places that work on these vehicles but nobody had information or books on what control head was the correct number.we did not know if the control head that was in it was the very original one or if it was changed in the past since it is ov...	10
	2006 Chevrolet Malibu LT 2.2L Brake Lights VIN: 1G1ZT51F16 First off thanks to those that replied. The PID in Tech2 only has one decimal place so when it is showing .8V it may or may not be within the programming criteria. I checked Vout with my Vantagepro and it was .83V. After physically adjusting the brake pi...	3
	2007 Chrysler Pacifica Touring 4.0L Engine VIN: 2A8GM68X57 IT WAS THE TIMING BELT, THE CUSTOMER HAD PUT RADIATOR SEALER IN THE COOLENT FOR A LEAK HE COULD NOT FIND. IT HAD CONGEALED AT THE WATER PUMP WEEP HOLE AND THERE WAS SO MUCH OF IT THAT IT HAD GOT INTO THE COGGS OF THE TIMING BELT AT THE CRANK PULLEY CAUSING IT ...	4
	1982 Dodge Ramcharger 5.2L No Start VIN: 1B4GW12P2C Thank you all for your replies. after checking for proper grounds ( Volt drop )and power to coil , I removed the Dist cap to find the breaker plate the Hall Effect switch is mounted on was broken loose from the base and floating around. This is a single pick-u...	18
	1997 Dodge B2500 3.9L Hesitation, Stall, MIL Lamp on VIN: 2B6HB21X7V Thank you to all for your replies.After talking to customer about aftermarket parts we both came to conclusion and replaced crankshaft sensor with mopar one .They have driven van for week and and no problems. Trouble codes: P0351, P0301, P0303, P0305, P0300.	15
	1997 Ford E-350 Econoline 6.8L Torque convertor clutch VIN: 1FDLE40S0V Well. Its fixed. Turns out all was needed was a test drive. I was trying to apply the TCC in the shop by triggering the P/Y wire to ground and looking for a change in RPM. Guess that was an invalid test. I tried all ranges. Turns out going 50 MPH, and touch th...	3
	1999 Ford Ranger XL 3.0L Slighty high idle VIN: 1FTYR10V7X After everyone said it was a Vac leak. It isn't called the Ford dealer and told them what everyone said and they replied not a leak computer needs a reprogram they seen 2 in the last 6 months either reflash or new PCM fixed both. Thanks only the last post was ... Trouble codes: P1504 (Iac circuit fault).	22
	1999 Ford Ranger XLT 4.0L MIL Lamp on VIN: 1FTZR15X5X Thanks again to ALL! As was suggested by many, fuel injectors seemed to be the problem. Was told by customer fuel filter was changed recently ,but decided to check anyway. It was almost completly clogged! Replaced and ran cleaner through and all seems well. Wh...	10
	2002 Ford Explorer XLT 4.0L monitors VIN: 1FMZU63E02 Thank you for all your response, I think I had a connection problem to pcm, All I did was disconnect pcm to check keep alive and after that thing started to work.	6
	2004 Ford Ranger Edge 4.0L Poor Idle Quality, Misfire VIN: 1FTYR44E64 Thanks for all the help guys. The customer finally gave me the go ahead to change out the intake gaskets and this ones down the road. Before doing the gaskets I did make sure that the crank pulley with the crank pully bolt removed was good and tight on the c...	11
	2007 Ford F-150 XLT 5.4L Hesitation VIN: 1FTPW14507 Thanks to all who helped. Because this truck had valve train noise, I started to suspect an oil problem. Because of the fees the state of California charges if you do oil changes ($581), I had the customer take it the Ford dealership for an oil change. Ford re... Trouble codes: P2197 (O2 pegged low).	12
	1991 GMC K3500 Sierra 6.2L transfer case Hello Gentlemen, Many thanks to the two chaps that answered my request, I am going to remove and strip the planet set, I am sure that the sun gear thrust washer or bearing has failed, I will post what I find on the forum, thanks again and God Bless	2
	1998 Honda Civic CX 1.6L 2nd gear VIN: 2HGEJ6324W Can't really say I fixed it! Pushed the car outside till customer calls back and just fired it up and it went into 1st gear and is working fine now! Stupid cars...have a little less hair but customer is gonna try it!	9
	1998 Honda Civic LX 1.6L Speedo/Gasguage VIN: 2HGEJ6571W THANKS FOR ALL THE HELP.AFTER CHECKING FOR BAD WIRING,SHORTS,ETC. WE REPLACED THE CLUSTER WITH A USED ONE AND EVERYTHING WORKS FINE.THANKS AGAIN FOR ALL THE HELP.USED CLUSTER WAS $50.	7
	2000 Hyundai Sonata 2.4L Poor Idle Quality, Hesitation Used MAF fixed car. Most said MAF,1 said intake gasket and other said O2. Even though MAF showed good with vantage,it was bad. Dealer wanted $500,customer said get used one ($50) thanks to all. dave Trouble codes: P0171.	8
	2003 Hyundai Tiburon GT 2.7L hazard flashers VIN: KMHHN65F03 Sorry about the late close.forgot all about it.After a long delay on the customers behalf he finally bit the bullet and bought the bcm,sent it to the dealer to be coded and now all is good.I had dissassembled the bcm just to see what happened and realized that...	7
	2000 Isuzu Trooper Limited 3.5L not shifting VIN: JACDJ58X8Y First of all Thanks for all of the replies! The trans shop we were working for got us in touch with an Isuzu tech line in California. He walked us through the test procedure on the phone. He had us use a low amps probe at the trans on the solenoid wires while ...	11
	2002 Lexus RX300 3.0L Safety VIN: JTJHF10U52 Thanks for patience, It's been two weeks with no return of SRS light or code P0103. Replacing SRS control unit (called central sensor by Lexus) is what corrected the "short to battery in squib ckt D". . Funny that Genisys scanner "code assist" claims top r...	3
	1995 Mercury Villager GS 3.0L Stall, Misfire VIN: 4M2DV11W4S thanks for all your help. i was able to procure a scope and found the referance signal erratic, replaced the distributor and the vehicle is fixed.	10
	2005 Nissan Quest 3.5L tpms VIN: 5N1BV28U25 I know this could be repaired correctly having the correct tools. replaced the L/F tpms sensor due to dtc, however, who knows how many times the tires have been rotated/cross rotated. We have no way to train the tpms sensors to find the faulty sensor, and now ...	3
	2008 Pontiac G5 2.2L Surge, Stall, MIL Lamp on VIN: 1G2AL18F08 Thank You Techs for the help. The fix was a new PCM that we programed with our Tech 2 and TIS to Web, the car runs like new. Trouble codes: P0171 (Lean Bank 1), P0496 (Purge Soleniod Hi Flow).	5
	1989 Volkswagen Cabriolet 1.8L Unknown VIN: WVWCA0158K I FIXED THE PROBLEM BY PRYING THE CLIP REALLY HARD. IT WAS VERY RUSTED BUT WE GOT IT OUT. THANKS FOR THE HELP.	2

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