Automotive Technicians Technical Discussion and Fixes for Mar 25, 2011

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	Help Request	Answers
	1992 Acura Vigor GS 2.5L No Start VIN: JH4CC2650N This car turns over but wont start, we are loosing spark and injector pulse (symptoms of main relay). This is an intermitent problem, but when car is acting up it is loosing its fuse 12v reference (yellow/blue wire at relay) when key is on and when key is off ...	View
	2001 Audi A8 Quattro L 4.2L MIL Lamp on VIN: WAUML54D71 Vehicle has had 2 new factory MAFs. All readings for testing mass air flow are in spec by book. Car seems to run good. We have inspected the wires and connectors best as possible with out pulling car apart. Any input would be help full. Trouble codes: P0101, 17549 (Load Caculation Cross check implausible P1141)	View
	2003 Audi Allroad Quattro 2.7L Engine VIN: WA1YD64B83 Customer complains of coolant leaking gone through 3/4 gallon in 150 miles. Every once in a while get a cloud of supposably white smoke. Very intermitant. Any help would be great...	View
	2001 BMW Z3 Roadster 3.0L gauges VIN: WBACN33411 Low mileage BMW Z3 comes in with fuel gauge inop. eep2 code registering on display where odometer normally is, scan gauge cluster using launch x-431. code set for gauge cluster can bus. after reading archives decided to install new cluster, and somewhere durin...	View
	2004 BMW 530i 3.0L Ignition VIN: WBANA73534 Vehicle died while driving.Had terminal 15 output 3 code in security system. Terminal 15 output 3 had 1.1-1.2v all others had battery voltage. Tried another key. same result tried aligning the modules. same result Also had battery monitoring failure code, re...	View
	2005 BMW 745Li 4.4L No Start VIN: WBAGN635XD Dear fellow bmw tech customer parked his car and after few hours, his car will crank but not start,tow truck driver add fuel thinking car was out of fuel, while cranking battery went dead, and they try to jump start the car with no luck to start the car. Car w... Trouble codes: 2F44, 2F45, 2F80	View
	2008 BMW 328xi 3.0L engine VIN: WBAVC93518 -Car came in for oil leak issues. Oil was changed by pep boys 3 weeks ago. I see no problems with that. I had to pressure wash, an oil mess everywhere. We cleaned more in the bays, road tested to verify our leaks. I have an 100% large oil leak from: #1 bell ho...	View
	1999 Buick Park Avenue Ultra 3.8L Stall, MIL Lamp on VIN: 1G3456789X Not the right vin car is with the customer. Car came in Thursday for SES and bucking problem found code p336. On test drive with scanner noticed that the 18x only went up to 1800 rpms but would follow the 3x pretty much step for step, did not notice any buckin... Trouble codes: P0336	View
	2006 Buick Rendezvous CXL 3.5L Drivetrain?? VIN: 316D147777 Hello there, i have this awd rendezvous that has a noise mostly at 2300 rpm.dont even have to be driving it. In park you can hear the noise it worse at 2300 rpm like a howling sound.but when you drive it at about 1000 rpm it starts and gets alot louder at 2300...	View
	1997 Cadillac DeVille Concours 4.6L Misfire VIN: 1G6KF5299V good morning all iatn members. I really need some help with this cadi with mis-firing issue.one of my tech replaced engine with used engine and this car runs very well except in the morning first when it starts up. it will badly mis-fire on #5 cylinder and it ...	View
	2003 Cadillac Escalade EXT 6.0L cruise control VIN: 3GYEK63N63 Hey GM techs, I need some help. A street rodder dropped an 03 Escalade ext eng/trans & computer in a 48 Linoln. He didn't install the instrument cluster or bcm but He got everything working except the cruise control. I scanned the pcm & can see the cruise data...	View
	1999 Chevrolet Cavalier 2.2L hyd system VIN: 1G1JC1240X same as above	View
	2002 Chevrolet Impala 3.4L Hesitation VIN: 2G1WF52E62 This bucks like it is hitting a rev limiter and when it does this the spark advance shows over 50 degrees, if I disconnect the EGR valve the problem clears up. I do not see a lean condition and I have checked the MAF and it appears to function properly and whe...	View
	2007 Chevrolet Silverado 1500 LS 4.8L No Start VIN: 1GCEK19C97 Hi all I'm asking for some help on this one, Fuel pump doesn't run. There is no signal coming to the fuel pump relay. What I'm not sure about is where this signal comes from. I see that they have a fuel pump control module on this truck but don't see where the... Trouble codes: P0230	View
	1998 Dodge B1500 3.9L No Start, Poor Idle Quality, Hesitation, Cuts out, Stall Ok, have a real brain buster here. Its a 1998 Dodge B1500 with a 3.9. First crank of the morning and the van will start reluctantly and run poor. The van idles rough and you can hear the IAC have to open wide to keep the engine running. Attempts to open the th...	View
	2000 Dodge Durango 4.7L compressor clutch VIN: 1B4HS28N2Y Truck come in no a/c - hooked up guages and it has 90psi which should be enough to at least turn compressor on...it will cont come on - i can turn it on with scanner - no a/c request in datastream - i bypassed all pressure switches (hi/Lo) Verified signal at c...	View
	2004 Dodge Ram 2500 SLT 5.7L Cluster VIN: 1D7HU18094 Vehicle came in complaining of dash operation. Start vehicle and dash works okay. After a few seconds all gauges drop and no bus message is displayed. Able to scan and get no bus information codes on all modules. Have removed all connection at fuse block and c...	View
	2005 Dodge Sprinter 3500 2.7L Glow Plug VIN: WD0PD54435 We have a Sprinter here with 2 glow plugs that won't come out so It loos like were pulling the head. Can anyone give me any guidence on this? Do we need special tools to lock or set the timing or is there a work around? is it easier to pull the motor and do it...	View
	1999 Ford Taurus SE 3.0L Stall VIN: 1FAFP53S1X Help Ford techs! This taurus will blow the eec fuse very intermittently. We have tested and inspected all componants possible on the curcuit and cannot duplicate concern. Any ideas? Thanks, Greg	View
	2000 Ford Explorer Sport 4.0L Transmission VIN: 1FMZV67EX1 This poor trans has been through a lot. The class rebuilt the transmission rplacing among other things a broken oil pump. I earlier made a post about the orientation of the gears in the pump. So that is straightened out and we installed the trans yesterday. Wh...	View
	2006 Ford Freestyle SE 3.0L engine VIN: 1FZK02186G Hello everyone , Have this 2006 Ford Freestyle 3.0L Duratec V-6 with a light knocking noise in flexplate area. We have had the trans. out & replaced the torque converter - removed & inspected flexplate at that time . Flexplate looks good. We have removed oil p...	View
	2006 Ford E-350 Super Duty XL 5.4L engine VIN: 1FDWF32556 I have a 2006 ford f350 with a 5.4l engine with a misfire code p0307. Found what appeared to be water in the #7 plug tube(spark plug was installed) when I removed coil pack. I pressure tested cooling system to see if this was a coolant leak but to me it appear...	View
	2002 GMC Envoy SLT 4.2L MIL Lamp on, Reduced Power Light VIN: 1GKDT13S52 I have replaced the APP connector and The Throttle Body connector. I have also load tested the wiring from the APP to the PCM and the Throttle Body to the PCM, the all carry a load using a headlight bulb and the voltage drop was .02V. I am leaning toward the P... Trouble codes: P1523 (Closed Throttle Performance), P1271 (APP 1-2 Correlation)	View
	2008 GMC Sierra 1500 WT 4.3L MIL Lamp on VIN: 1GTEC14X78 vehicle came in with codes p1174, p0128 and p0118. customer states ses light comes on at times and goes off, will at times display engine HOT a/c off and temp gage drops to cold. he had advance pull code p0118 and he replaced the ect. vehicle is now here and h... Trouble codes: P0118	View
	2004 Isuzu Rodeo S 3.5L speedometer VIN: 4S2CK58Y04 the trans is a aisin & hitachi ecm	View
	1996 Jaguar XJ12 6.0L MIL Lamp on VIN: SAJMX6346T Hello this Jaguar keeps setting a p0336 code and goes into limp in mode.I have checked continuity to ecm for crank and rpm sensors. After clearing the code when the car is idling the engine will rev freely to red line. If I select any gear it will set code and... Trouble codes: P0336	View
	2001 Jeep Grand Cherokee Laredo 4.0L Electronic VIN: 1J4GW48S71 I just replaced the transmission in this truck with a used unit. I was told it needed to be reprogramed before driving. I was wondering if it needs to go to the dealer or is there another method ? I try to stay away from automatic trans work so excuse the gene...	View
	2002 Kia Sedona EX 3.5L engine VIN: KNDUP13192 hello well my tech was doing a timing belt he explain to me that with the engine timing belt off he turn the cranck shaft and heard a poping sound then i timed the timing belt and installed when trying to spin the motor to see if timing was correct with timing...	View
	2002 Kia Sportage 2.0L Wiring and Coil Pack VIN: KNDJB72312 Customers car came in on a tow truck. Car would only run on 2 cylinders and all dash lights were inoperative. Codes were p0604, p0300, p0301, p0304. I ignored the p0604 due to the TSB by kia saying to trouble shoot other codes first before replacing the PCM. I...	View
	2005 Kia Sedona EX 3.5L Door locks VIN: KNDUP13165 Car came in with the cigar lighter inop, and left front window inop. We verified complaint, pulled it into the shop and replaced the fuse for the lighter. All of the sudden the left front window started working and the door locks quit working unless the igniti...	View
	2004 Land Rover Range Rover HSE 4.4L turn signals VIN: SALMF11404 Hello Fellow Techs, The turnsignal indicators on the dash don't light up when using both left and right turnsignals.All turnsignal lamps function correctly.I checked bulbs,all fuses and grounds for the instrument pack. Wiring schematic shows led's for the in...	View
	2004 Lincoln Aviator 4.6L Cylinder 8 VIN: 5LMEU68H24 As always I appreciate the help in advance. Im working on this Aviator, it belongs to my service advisor. I keep getting a recurring misfire code for cylinder 8(P0308) and also get a misfire occurence within first 1000 engine revolutions(p0316). I was given a ...	View
	1999 Mazda Miata 1.8L No Start, Poor Idle Quality, Stall VIN: JM1NB353XX Car came from another shop to us ,car is very hard to start act likes its flooded .When it does start wont idle below 2000 or it stall out , when we have it running at 2000 rpm it surges up and down .The car revs freely above 2500 .When it stalls out it take a...	View
	2006 Mazda 3 i 2.0L Power Steering Pump VIN: JM1BK12F77 The power steering pump was going out at times and the customer heard about a recall about similar models and the pumps going out. I confirmed the recall and the models being recalled had the same part numbers. We replaced everything listed in the recall and...	View
	2001 Mercedes-Benz CL500 5.0L MIL Lamp on VIN: WDBPJ75J11 To all Techs, I have a 2001 Mercedes CL500 that does not upshift. The transmission is stuck in 2nd gear at all time. The engine is running normally but the MIL is on. The code is P2037 which is related to the CAN BUS from the ETC. I do not believe there is a ... Trouble codes: P0600 (Serial Data Link Fault generic OBDII), P2037 (CAN message from ETC control unit), C1511 (Control module incorrectly coded ESP system), C1024 (CAN-EGS ESP system), C1027 (CAN EIS ETC ABC system)	View
	2004 Nissan Sentra 1.8L Misfire VIN: 3N1CB51D34 we performed a valve job due to burned exhaust valves at #3 cyl. after getting engine running, found a misfire on #1 at idle only. I have swapped injectors, coils, plugs, etc. around with no change. smoke checked for vacuum leaks, compression and leak down are...	View
	2003 Saturn Vue 3.0L engine VIN: 5GZCZ63B43 We have a 2003 saturn that came in a few months ago. The engine was in 3 boxes of parts and the cu wanted the car put back togeather. He had the car at another shop and they droped a bolt down a plug hole and ran the car not good. They removet the cylinder hea...	View
	1998 Subaru Legacy Outback 2.5L MIL Lamp on VIN: 4S3BG6859W Code PO170 keeps returning . Originally had O2 sensor codes - front sensor and rear sensor heater . Replaced Both with OEM . Was also getting PO304 - misfire cyl #4 -replaced spark plug [ was almost new ] . Ran fuel pressure test while road testing up long hil... Trouble codes: P0170	View
	1998 Toyota Sienna LE 3.0L oil VIN: 4T3ZF13C2X Hello fellow techs, I have a Toyota van driving me crazy. Customer was complaining of oil burning and smoke on cold start. It has very high miles and was too old for any warranty repair, so I decided to do an "in vehicle rebuild". Much more work than I expecte...	View
	2007 Toyota Highlander Hybrid Limited 3.3L Power Steering VIN: JTEEW21A27 P/S Light on in dash. DTC C1568 comes up on scan. Diagnostic tree points to Power Steering ECU Assy. Scan data shows DRDD at 1.4 Volts. According to Toyota it should be 10 to 14 volts with ignition switch on. Step 6 checks Power steering Converter by disconnec...	View
	1998 Volkswagen Jetta GL 2.0L No Start VIN: 3VWRA81H2W Hi guys. This car makes my brain hurt. Compression, timing, injector pulse, spark all good or present. Vehicle continually sets vag code 16725, po341 cam sensor signal inplausible. Verus graph of sensor signal good. Current across two outer pins of dist. conne... Trouble codes: P0341	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1992 Audi 100 2.8L No Start VIN: WAVAJ54A2N Well guys, cars fixed. Replaced the ECU located under the glove box. After my last update I recheck my fuel pump relay. My ground kept clicking. Would stay grounded ever. Put a ground to the fuel pump relay and car started right up. Ordered the ECU and it work...	10
	2003 Audi A4 Quattro Avant 3.0L No Symptoms VIN: WAUVT68E73 Thanks for the help everyone but the customers needs their vehicle. We have tried a new ECM and TCM and the check engine light comes on right away without any codes in the TCM. Vehicle runs and drives just fine so we are going put this on the back burner for...	3
	1995 Chevrolet Blazer 4.3L No Start VIN: 1GNCT18W5S Thanks to all! Joseph [...]'antuono hit the nail on the head! The fix was the ignition control module needed replaced! I pulled codes with a different scanner and P1351 had been stored,I believe as a history code. As Joseph recommended, the ignition control module...	32
	1995 Chevrolet S10 4.3L 1-2, 2-3, 3-4, shifts VIN: 1GCCS14Z3R Hello everyone and great thanks, Brian was spot on with removing the wire from the E.C.M. connector pin f8 This truck now shifts perfectly and the scanner shows 4x4 off constantly(truck is 2wd). Thanks to all! Tim [...]	12
	1999 Chevrolet Corvette 5.7L Parking/Dash lights VIN: 1G1YY32G6X Hi Everyone, this Vette is on its way. It was the combo switch as must of you said. Done little additional checking, and noticed no voltage out of the switch parking lights wires. Replaced the combo turn signal switch and all is back alive. As far the wiper mo...	8
	2005 Chevrolet Silverado 1500 5.3L Transfer Case VIN: 2GCEK13T05 Several prople have said it has probably worn a fork in the trasfer case from low fluid. It was full of fluid but it was very dirty so I just put in a reman unit from Jasper. Thanks Cliff	7
	2006 Chevrolet Trailblazer LS 4.2L abs VIN: 1GNDT13S56 Every day is a school day! I only voltage dropped one of the two large red wires to the module. Repaired severe corrosion in harness near air pump and all is well! It's always in the last place you look.	2
	2009 Chevrolet Suburban 1500 LT 5.3L Trailer Brake Wiring VIN: 379J116294 Thanks for all the help. I also called the local trailer supply company they agreed that it was above the E-brake pedal. It was behind a module to the right of the pedal. The loom came out of the fuse panel near the firewall. Thanks again for this great res...	9
	2002 Chrysler Town & Country Limited 3.8L No Start VIN: 2C8GT64L32 Well it ended up being 2 issues. First of all thanks to Matt and Dave they said wrong key, they hit it on the head. It cranked after getting corrrect key and it had a bad fuel pump. Thanks for all of the help. IATN ROCKS	2
	2005 Dodge Durango SLT 4.7L Surge, Cuts out, Stall, MIL Lamp on VIN: 1D4HB48N45 Have been doing checks on this truck whenever customer has time to leave it, I am currently waiting for him to return with news on how it's running, I'll will definitely let everyone know when I can confirm the fix. Thanks for the help, so far Trouble codes: P0344, P0404.	4
	1987 Ford E-350 Econoline Club Wagon XLT 5.8L engine stall VIN: 1FDKE30HXH I found out there was alot of wear in the cam follower that is mounted on the shaft of the primary butterfly. This cam pushes on the excellerator pump arm. By bending or adjusting it, the hesitation at acceleration was eliminated. also, I cannot explain the el...	8
	2000 Ford Explorer Sport 4.0L Oil Pump VIN: 1FMZU67EX1 Thanks for all the responses. The consensus is that the chamfer on the oil pump is installed facing the torque converter. Another class had installed the trans without notice, so we had to take it back out to correct the oil pump problem. Such is life in a tec...	11
	2000 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAFP5527Y thanks to all 8 replies,the keep alive memory voltage supply at pin 55 on pcm harness was open ckt.repaired at harness under battery tray mid stream.codes automatically cleared after first koeo test.thanks again for a great responce too my needs. Trouble codes: P1633.	8
	2008 Ford E-350 Super Duty XLT 6.0L coolant level VIN: 1FTWW31R88 Thank you to everone who replied, the problem was the lower egr cooler. I pressure tested it and it was leaking. We replaced it the coolant in the exhuast problem is gone. The relative compression test showed 8% lower on #8 cyl. the customer has taken the vehi...	5
	1992 Geo Tracker 1.6L starting VIN: 2CNBE18U0N sry for late update replaced the comp in this geo and she fired right up thanks for all the help guys	14
	2000 GMC Sonoma SL 2.2L abs VIN: 1GTCS1956Y Cleaned all the grounds on radiator core support and in cab. Test drove 26 miles with no problems.	5
	2003 GMC Yukon SLT 5.3L Front Crash Sensor 1 VIN: 1GKEK13ZX3 Thanks to everyone that replied. Unfortunatly I din't get to retest the vehicle. The customer couldn't leave the vehicle any longer for us to find out what was wrong. Hopefully they will bring it back so I can finish the job. Untill then, its a mystery. T...	5
	2005 GMC Sierra 1500 SLE 5.3L Accessories VIN: 2GCEK19T05 well i hav'nt any more problems with this cluster.i triied to find out at dealer if would be under warrenty,was told no.will keep an eye on it,possible update later.thanks to all for the replies.	8
	1998 Honda Civic EX 1.6L Speedometer VIN: 1HGEJ8242W thanks to everyone for all the help vss signal was present with scan tool replaced speedo head speedometer operates properly .	11
	2000 Honda Accord EX 2.3L srs VIN: IHGCG2254Y Raymond from wisconsin hit the nail on the head, i was following the procedure step by step just as he suggested, but was not leaving the key off for 10 seconds before cycling the key back on...POROBLEM FIXED!! thanks to all who responed	6
	2003 Isuzu Rodeo S 2.2L engine VIN: 4S2CK58D73 Thank you for everyone that replied. We removed the spark plugs and pressurized each cylinder with the radiator cap off. #1 cylinder caused coolant to push out of radiator. We received approval for cylinder head repairs. Found #1 cylinder head gasket fire ...	14
	2000 Jaguar XK8 4.0L MIL Lamp on VIN: SAJJA42C7Y Thanks to all who responded. Briam from Cali provided the correct part number and the fix was all of 15 minutes. I replaced the cartridge [...] and the pipe. Cleared the codes and all was well for about 30 miles and the MIL light came back on and P0171 ... Trouble codes: P0171 (p0174-), P0174.	5
	2002 Jeep Grand Cherokee Limited 4.7L Surge VIN: 1J8GW58N72 Thanks to all for the help, Dave hit it on the money , there was a crack in the intake from one of the backfires. Once you start thinking computer, you get stuck on that train of thought. Trouble codes: P1299, P0601, P0339.	6
	2006 Land Rover Range Rover HSE 4.4L camera & glove box VIN: SALMF15416 Well the camera thing I may pass on. But I was able to pry the glove box door open. I rem0ved the side panel and other things in order to try to look at the latch system. I was able to get the latch out and I could see that the cable release outer housing unsn...	4
	1999 Lexus RX300 3.0L Mechanical VIN: JT6HF10U5X thanks for replies this car is fixed harness behind engine shorted	9
	2003 Mini Cooper 1.6L fuel guage VIN: WMWRC33413 I would like to thank the three guys that helped, it turned out to be a defective fuel sender right out of the box imagine that. On the day we put it we could of used a little more time to recheck with the old if we had re cleared the codes from the new bad ...	3
	2000 Nissan Sentra GXE 1.8L Poor Idle Quality, Stall VIN: 3N1CB51D3Y the vehicle appears to be fixed at this time. the maf sensor was changed and after a wot from 40mph, the fuel trims started correcting and everything went to working correctly. special thanks to Rags and everyone else on this one. after getting dragged a...	3
	2000 Nissan Maxima GLE 3.0L MIL Lamp on VIN: JN1CA31A9Y vehicle fixed. thanks to all the replies. when u see a p1320, get the new coils as per the tsb which has the new part numbers. got them from worldpac - they have a grey dot on top. long live IATN Trouble codes: P1320 (ignition signal primary), P1211 (TCS fault).	13
	2007 Saab 9-5 2.3t 2.3L No Start VIN: YS3ED49G57 Thank you to those who took the time to reply. Alot of you suggested that the CKP could cause this and similar problems, as I was running short on ideas I tried one. It was not the problem. finally I put all the facts together; Cranking HZ of MAF was 1500Hz, t...	9
	2003 Toyota Camry LE 2.4L trunk unlock VIN: 4T1BE32KX3 I called the customer and suggested he remove the battery from the 2 fobs and see what happens. He left them out for days with no more problem. Then he remembered he dropped one of the fobs in the water(I didn't ask if it was toilet water or a puddle) and from...	7
	2009 Volkswagen Jetta TDI 2.0L No Start VIN: 3VWRL71K19 Well this one is fixed. There is a long story to this fix. As I originally posted this car came in not starting at all. I replaced the RPM sensor in the trans housing and the car started but clattered and would not restart hot soak. I replaced the injectors on... Trouble codes: P1006, P020A, P1004, P1007.	3
	2003 Volvo S40 1.9L Cam Reset Valve VIN: YV1VS27513 Thanks again for all the help reguarding this vehicle. As it ended up, it did need more than just the valve as some of you had suggested. It ended up needing the whole vvt gear and timing belt etc. I took the advice of several of you who wrote in and, because ...	10
	2007 Volvo S60 R 2.5L engine light on VIN: YV1RH59237 As Jim from NJ pointed out that he had the same problem & he swapped out the voltage regulator from the old alternator We were suprised as we had installed a Bosch reman. alternator 2 times & both had the same problem. Anyway we have made Bosch aware of this ...	5

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