Automotive Technicians Technical Discussion and Fixes for Nov 4, 2011

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	Help Request	Answers
	1999 Cadillac DeVille 4.6L Interior VIN: 1G6KD54Y3X Every day this one is getting worse! First, car is not here for service, just for sale on commission. (Day 1) I get woke up at midnight by the Police saying the Cadillac down at my shop has the alarm going off and lights flashing. I go down to the shop and fin...	View
	2004 Cadillac SRX 4.6L right side low beam VIN: 1GYDE63A14 Right side low beam not working. This has HID lights with module. Visual inspection of HID bulb shows bulb being burned out. Had students check for power and grounds at ballat of bulb, three terminals. All were good? Not true. We then check for power and groun...	View
	1981 Chevrolet Corvette 5.7L check engine light we have tried charging battery to full,disconecting the alternator,and computer check engine light not on with car running also tried replacing ignition switch on steering colume it also draind the battery if not disconnected	View
	1986 Chevrolet Monte Carlo SS 5.0L Lighting VIN: 1G1GZ37G1G thanks in advance.i have this car and the brake light is on looking at the wire diagrahm i have 12v on pink and black wire going to the cluster.now at the switch all i have is ground on the tan and white wire at the park brake switch and brake preessure switch...	View
	1998 Chevrolet Tracker 1.6L tcc solenoid VIN: 2CNBJ1361W No 12 volt output from computer sometimes . I replaced computer with used , same results . some days , system works fine and then when problem occurs , I get no signal from computer . I erase code and it shifts 1-2 no prob 2-3 no prob 3-4 no prob. I can activa...	View
	2003 Chevrolet Tahoe LS 5.3L Unknown VIN: 1GNEK13T73 Need some assistance from you GM techs. This tahoe came in with a complaint of a noise in 4wd. Very easy to duplicate on the road but very hard to duplicate on lift. The noise is like a grinding rumbling noise much worse when braking than when accelerating. Te...	View
	2003 Chevrolet Express 3500 6.0L Alternator VIN: 1GCHG35U83 Hello all, ive got a express van killing me.Van brought in complaint of stalling dim lights etc.Checked the alternator at the battery only charging 12.4 volts.Replaced alternator with new and still have the exact same problem.I have 12 volts to the large red w...	View
	2006 Chevrolet Tahoe 5.3L bottom end? VIN: 1GNEK13Z06 We have a medium i guess slightly tin sounding noise in the bottom end of engine,favoring the front part of the oil pan.It is a police vehicle has had proper oil changes.Oil pressure is good by dash guage.I have not yet put a test guage in it.There no codes,no...	View
	2005 Chrysler Crossfire 3.2L no start/no crank VIN: 1C3AN65LX5 This 05 Crossfire come in as a no start/no crank.Battery was dead,replaced and still no crank.Scanned for codes and found 2071-08 which is SKREEM module is not sending signal to PCM.Also code 1040 for the Insturment Cluster no can to PCM.Have replaced the K4 r...	View
	1985 Dodge D350 5.9L clutch rod VIN: 1B7MD36W1F We recently replaced the engine mounts, transmission mount and the manual transmission assembly. After repair, the clutch linkage rod located at the transmission broke. Due to age we replaced the rod, bushings, bearings, and the "z-bar". Since then the Z bar h...	View
	1998 Dodge Neon Sport 2.0L heater Customer complaint of no heat, found that there is no flow of coolant from heater outlet and inlet pipes, installed clear section of hose to check.Also no flow at water outlet even with t-stat removed. Acts like water pump impeller is not turning or has damage...	View
	2001 Dodge Ram 1500 Laramie 5.9L No Start VIN: 3B7HF13Z01 Hi all yesterday came in no start no power to injectors no bus message on dash found loose harness in PDC tightened and test drove over bumpy road no problem. try to start this morning would start and die remove harness from PDC and tighten again now wont sta... Trouble codes: P1687	View
	2006 Dodge Ram 2500 SLT 5.9L AC compressor VIN: 1D7KS28C76 Shop truck for boat delivery; started truck, AC not blowing cold; shut off AC & engine; restarted & pushed AC button, blowing cold. Used truck, shut off, AC hasn't worked since. Compressor engages briefly, then releases; no DTCs. Our auto repair shop diagnosed...	View
	1995 Ford F-150 Eddie Bauer 5.0L Poor Fuel Economy VIN: 1FTEF14NDS My question on this one is what tells the pcm when and how much egr is needed. On this truck the egr opens to 50% evr with just a small amount of throttle in park, nuetral, and drive. So in park or neutral if i rev it up just a little off idle the egr is coman...	View
	1998 Ford F-150 Lariat 4.6L stuck lean VIN: 2FTZX08W7W Please Help!!! Truck came in initially for a miss, no CEL on, no codes. Found cylinder contribution on #4 to be low, checked for and had good spark. Pulled plug and found half the electrode burned off!! These were high performance plugs and the truck has no mo...	View
	1998 Ford E-150 Econoline Club Wagon Chateau 4.6L monitor reset VIN: 1FMRE1168W I diagnose code P0442 - small evap leak. I replaced the vent valve because it had a small leak and when i blew through it some chunkies came out. NO other leaks were fopund. I cleared the codes and now i cannot get the evap monitor to reset. All other monitors... Trouble codes: P0442 (Small evap leak)	View
	2002 Ford Excursion XLT 5.4L Mechanical VIN: 1FMNU40L02 Please help me with this sled. It is my neighbors truck and stuck in my driveway. I removed the tank and installed a fuel pump last week and the large line quick fitting broke off at the fuel pump.I bought a repair line from carquest and had a lot of trouble g...	View
	2004 Ford F-150 STX 4.6L Ring Gear & Pinon VIN: 1FTRX14W24 This truck came to us for a whine noise. The rear differential did exhibit a ring gear and pinon whine noise. Inspection found the pinon nut loose and the pinon gear moving excessively which wiped the bearings and ring and pinon gears. A differential rebuild w...	View
	2004 Ford F-150 Heritage XLT 4.2L MIL Lamp on VIN: 2FTRF17224 Easy fix...not this Ford.. I thought that it was the usually air flow meter being dirty,...removed and inspected, clean as necessary and check readings on air flow meter, Baro is 156 at Sea level.(Daly City, CA). volts output is about .83volts at idle. Smoke t... Trouble codes: P0171 (Lean Bank 1), P0174 (Lean Bank 2)	View
	2006 Ford Fusion SE 2.3L Wipers VIN: 3FAFP07Z96 The wipers will not work and a "buzzing noise" is coming from under the dashboard. Has anybody fixed one like this?	View
	2006 Ford F-250 Super Duty XLT 6.0L compression VIN: 1FTSH21P46 Need some advice. Student towed in a 6.0 diesel ford for no start. He said he installed a EGR delete package. Cranked the engine it fired and then died, has not started since. Low pressure fuel, High pressure oil, cranking voltages to modules, and cam crank sy...	View
	1998 GMC Savana 3500 6.5L No Start VIN: 1GDJG31F2W This one came in on the hook. Both batteries completely dead. Customer states engine was left idling for hours and died. After replacing both batteries engine cranks good no start. Scan codes found P1631, Theft Deterrent Password Incorrect. We cleared code, th...	View
	2006 Honda Civic LX 1.8L Oil life monitor VIN: 1HGFA16516 This vehicle came in for a standard oil change and the customer stated they would like to have the oil life monitor reset, we noticed that it has a "service engine" wrench glowing on the instrument cluster as well as a -5247 as well as a A12 in that same area ...	View
	2000 Isuzu Rodeo LS 3.2L MIL Lamp on VIN: 4S2DM58W6Y i have just done head gaskets on this motor and had numerouse problems with the timing mitchell and all datas procedure for setting the timing belt is inccorrect there is a tsb that shows the extra steps now that i have that problem fixed i keep getting these ... Trouble codes: P1133, P1153	View
	2004 Jaguar XJ8 4.2L Blower Motor VIN: SAJEA71C84 This vehicle came in with a blower motor inop. Checked for voltage through fuse and relay and found B+. Checked for voltage across the motor and found B+. Replaced the blower motor, and now it will turn on for one short burst whenever the hvac is turned on. I ...	View
	2003 Land Rover Range Rover HSE 4.4L Door Locks, Wipers VIN: SALME11433 How do i get vehicle out of transport mode , i have a launch x-431 thanks for any help i can get	View
	2001 Mercedes-Benz CL500 5.0L Abc System VIN: WDBPJ75J41 Client bought vehicle to shop with abc light on states abc suspension too low, visit workshop. Verified vehicle too low. Scan test, found codes c1525-064 system presure too low, c1526-016 malfunction in pressure supply system. Visual inspection found abc pump ...	View
	2002 Mercedes-Benz ML320 3.2L aux fan VIN: 4JGAB54E22 After running the car a bit and turning off, the aux fan will run always, for hours. It will not shut of unless i unplug it. Temp is not hot(engine) . I'm having a hard time finding the controler or relay for this fan. I beleive with my research that the contr...	View
	1990 Nissan Stanza GXE 2.4L Poor Fuel Economy VIN: JN1FU21P0L Customer came in asking to diag a poor fuel milage issue. 10mpg approx. found code 45. checked all the sensors, maf, o2s, ect,... pulled spark plugs, they aren't fouled. f/p doesn't drop. it's according to spec. no vaccum leaks. computer sees what i tested wit... Trouble codes: 45 (fuel leak)	View
	2001 Subaru Outback 2.5L Engine VIN: 4S3BH66561 Howdy all, This Subaru overheats at idle. If you increase the engine speed, it cools right back down, even sitting still. Fans are working, come on at 203f and go off at 194f. I have seen as much as 241f on the temp PID, guage agrees, infared is close enough ...	View
	2007 Subaru B9 Tribeca Limited 3.0L HVAC Control VIN: 4S4WX83D77 Yesterday She left he sunroof open and it started to rain. Now the security light is flashing, the heater and defroster LED display is not working, the heater is not working correctly and the seat warmer also is not working. Everything worked properly before t...	View
	2001 Toyota Celica GT 1.8L eng. noise @2500rpm VIN: JTDDR32T21 I am posting this for a friend, he has no access to IATN at this time. He works for one of the used car dealers here in Greater Seattle. His boss recently got this car and it has an engine noise at about 2500 rpm, just sitting there and reving the engine up to...	View
	2006 Volkswagen Jetta 2.0T 2.0L HID headlights VIN: 3VWNJ81K16 This vehicle came to me with no low beam headlamps. We tried bulbs ($82 our cost each), customer had previously tried new igniters. We found a problem with the right side range control computer and replaced it. Now the right side headlamp stays on constantly...	View
	2006 Volkswagen Rabbit 2.5 2.5L MIL Lamp on VIN: WVWBS71KX6 vehicle keeps popping code PO411. i am able to activate pump with scanner, I feel slight air draw from intake air port. I know there should be a good suction coming from the intake air tube.., but the problem is the pump will not come on when vehicle is cold..... Trouble codes: P0411	View
	2002 Volvo S40 1.9L comprehensive monitr VIN: YV1VS29562 hello im trying to run this car thru inspection comprehensive monitor doesnt want to run any ideas what i can do with it? no codes in any of the components in the car	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2004 BMW X5 4.4i 4.4L convertor? VIN: 5UXFB535X4 dme programming was out of date, reprogrammed and have not felt surge since also have not heard from customer so i'll say thumbs up. thanks, jason.	8
	2004 BMW X3 3.0i 3.0L Cuts out, Stall VIN: WBXPA93454 Thank you all for the help, we tried all the advice but were not able to find the problem Customer decided to take the car and not having it repaired	7
	2005 BMW 530i 3.0L No Start VIN: WBANA73525 I found 2 connectors under intake that are the same and can be interchanged. It will blow a fuse and cause a no start. thank you BMW. the fuse is under hood right side. The holder has 5 fuses with a black cover and hard to see.	4
	2001 Buick Century Custom 3.1L MIL Lamp on VIN: 1G4WE52J21 We fix it by installing new ftp sensor. Thanks for the help. Trouble codes: P0446 (Evap vent solenoid).	19
	2012 Cadillac SRX Luxury 3.6L privacy VIN: 1AAAASDFGH Everyone thank you for your replies, We did find that the on star control unit in this model is located behind the glove box, we elected to try the fuse in the center console fuse box marked on star first, that disabled the unit to make the customer happy. h...	12
	2001 Chevrolet S10 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GCDT19W51 Thanks for all of the great replies. Of course it was one of those where you smack your head and say "should have known". The P0507 code turned out to be a prior shop adjusting the hard idle stop on the throttle body. Easy enough fix for that. The P0300 was in... Trouble codes: P0507 (Idle speed High), P0300 (Random Multiple misfire).	16
	2003 Chevrolet Express 3500 6.0L Surge VIN: 1GBHG31U43 We isolated the problem to the left frame rail of the truck loosing ground when in drive with light throttle from a stop. The fuel pump is grounded to the rail. Running an auxiliary ground wire solved the surging. Voltage drop testing showed anywheres from ...	14
	2004 Chevrolet Tahoe LT 5.3L Unknown VIN: 1GNEK13Z64 the customer did not want to go into pre surgery ,drop pan or other pressure tests.the customer decided to go ahead with the trans replacement.to me it defenitely sounded internal but i did not get the opprotunity to tear apart the unit.after replacing the uni...	10
	2005 Chevrolet Express 3500 LS 4.8L evap system VIN: 1GCHG35V95 We replaced the vent valve per the replies made that maybe valve was on the way out. we also replace the fuel pressure sensor as well. Good fleet account explained to them the issues we were having and they told us to go ahead with it all. test drove vehicle a...	4
	2007 Chevrolet Impala LT 3.5L No Start, Poor Idle Quality, Hesitation, MIL Lamp on, Tachometer is inop. VIN: 2G1WT58KX7 After checking the wiring and terminals again we sent the vehicle to a GM garage. They spent 4 hours on the vehicle and opened a case with GM technical assistance. GM technical assistance told them it had to be an internal engine problem. Customer decided not ... Trouble codes: P0336 (Crankshaft Position CKP Sensor Performance).	8
	2009 Chevrolet HHR LT 2.2L cooling system VIN: 3GNCA23B69 replaced water pump on the hunch it was a loose impeller, no improvement. determined (finally) that there is a very slight separation of the head gasket. waiting for approval and will update.	11
	2005 Chrysler Crossfire 3.2L MIL Lamp on VIN: 1C3AN65L65 Thanks for th insight. Did follow through on some suggestions although the concern all along was our mistake. We used a aftermarket MAF sensor ($300.00 vs $600.00) for the previous repair of a P0102 code. Light stayed off a couple weeks however the Maf was the... Trouble codes: P0172 (Rich bank 1), P0175 (Rich bank 2).	6
	1994 Dodge Stealth 3.0L Misfire VIN: JB3AM44H5R This was my first time asking for help and it was a learning experiance. I should have started out saying vehicle had been in storage for several years and the plugs,wires cap and rotor were done before we got it. I want to thank all for the help suggestions. ...	11
	1996 Dodge Stratus 2.4L Poor Idle Quality VIN: 1B3EJ46X9T I want to thank everyone who took the time to rspond to my problem. I ended up replaceing the cat and front O2 sensor. Nothing changed with the rough idle and fuel trims after resetting adaptives with the DRB3. Also checked which was mentioned was individual i...	21
	2003 Dodge Intrepid SE 2.7L Starting VIN: 2B3HD46RX3 This one is fixed. Andrew was correct, it was a rubbed through wire under the hood. As the harness turns to go around the PCM is where it rubbed through. Thanks everyone	4
	2002 Ford Explorer Eddie Bauer 4.0L r,-5,4,3,2,1 VIN: 1FMZU73E32 Thanks for all the responses Curt from Wisconsin was the first but many said the same.Curt said have to honestly say that seems to be how those trannies die just stop goin altogether my friends 02 sport trac died the same way make sure the t case is ok if its...	12
	2004 Ford F-350 Super Duty XL 6.0L accelerates by itsel VIN: 1FTSW31PX4 a confirmed fix. After 400 miles of driving to confirm, It ended up being the egr valve. It wasn't even very carboned up. As i stated in my update, the egrvp was staying high while egrdc was low, indicating a sticking valve. I just had never had a lurch cau... Trouble codes: P0603, P0470.	19
	2006 Ford E-250 4.6L Misfire, MIL Lamp on VIN: 1FTNE24W16 Thank you for all the help. I replace all the spark plugs again and cylinder 6 coil pack. The previous spark plugs must have went bad or they sold me the wrong ones. Trouble codes: P0352 (ignition coil b).	10
	2007 Ford Focus SE 2.0L MIL Lamp on VIN: 1FAFP34N07 Thanks to all who helped. The solution came today. Thanks to Chad of S.O.S. Diagnostics. After learning about CAN technology, I had tested voltages and resistances on the CAN network--all ok. Disconnected one by one the 5 modules--no change. I followed te...	6
	2008 Ford Taurus SEL 3.5L Misfire, MIL Lamp on VIN: 1FAHP24WX8 New PCM fixed it. Installed new PCM had it flashed and all is good.	4
	1999 Honda CR-V LX 2.0L Hesitation, Cuts out VIN: JHLRD1846X I checked the cat psi normal at idle and also wot with problem present.I took fuel pres. normal at idle and wot with problem presenr.I also ramped the fuel pump all normal.I recorded pids during test drive all data is leading to lean system.From all the data g...	28
	2003 Jeep Liberty Sport 3.7L unknown leak VIN: 1J4GL48K03 Thanks to all of you that replied. What we ended up finding was that the reman. A/C compressor was leaking where the two halves come together in the rear. We couldn't get dye to be visable, but used the sniffer to find leak. I don't know why dye wasn't visable...	15
	2002 Lincoln Blackwood 5.4L No Start VIN: 5LTEW05A92 I eventually found the problem with the data bus communication system. repaired wire and was able to get the vehicle running. Victor from Missouri, was also correct about the data bus communication system.	4
	2006 Lincoln Navigator Ultimate 5.4L front air springs VIN: 5LMFU27526 Well gentlemen I would like to thank everyone that took the time out to help. This thing is fixed Fred from New Jersey led me on the right track with his suggestion about the strut.It turned out that the strut mount was leaking at the top around the rubber bus...	5
	2005 Nissan Altima S 2.5L MIL Lamp on VIN: 1N4AL11E85 The customer declined going into the timing chain as he decided to trade the car. I am 99% convinced that the chain had jumped. I was able to test and confirm the VVT solinoid was working and was indeed moving the cam actuater. I confirmed this with a scope o... Trouble codes: P0011.	6
	2001 Saab 9-5 SE 3.0L Engine VIN: YS3EF48Z41 Thanks to all that replied. I'm sorry to be so long but the customer has been driving the car to evaluate what we tried in effort to diagnose and stop the smoking. We changed the turbo again to a brand new OEM, verified that the crankcase vent system was worki...	6
	1993 Toyota Camry LE 3.0L power steering VIN: JT2VK12E6P FOUND PROBLEM AFTER CLEANING THE SCREEN IN RESOVOIR THE SCREEN CAME APART AND GOT CAUGHT IN THE PUMP. REPLACED P/S PUMP AND FLUSHED OUT ALL THE LINES AND COOLANT FAN FILLED WITH DEX FLUID AND REPLACED RESOVOIR NOISE GONE COUSTOMER HAPPY THANKS GUYS	10
	2005 Toyota Corolla S 1.8L Jerking VIN: 1NXBR32E75 Thanks for all the replies, we've finally got this repaired. The problem was a broken tooth on the Cam Shaft! The key here was the valve cover, when you opened the oil fill cap you could see the metal baffle/shield was bent in and had a small gash. The teeth o... Trouble codes: P0016 (cam crank position correlation).	11
	2000 Volkswagen Jetta GLS Turbo 1.8L MIL Lamp on VIN: 3VWSD29M9Y As i suspect the ECM is no good. Thatis it, ECM is the problem. I call dealer a ask for the price on ECM. ECM is $600 + $150 repram + $100 relearn ignition key to the new ECM. They told me ECM never fail on this car, but it did. The most common problem is the ... Trouble codes: P0411.	9
	2001 Volkswagen Passat GLS 2.8L MIL Lamp on I would like to thank all the techs that took the time to respond, especially Jake,the 'audidoctor' who replied several times through email. The code that was present was 17800 which basically states that the CMP was shorted to voltage, or Open. In my case, ...	9
	1998 Volvo V70 AWD 2.4L Parking Brake Cables VIN: YV1LW5648W CABLES, CABLES, CABLES!!! Volvo was sending me the wrong cables. Using the part numbers that Bruce left me, I contacted Volvo and after some arguing, I prevailed. I have no clue how they were getting me the wrong cables, and they don't believe I now have got t...	8
	2000 Volvo S40 1.9L Variable cam timing VIN: YV1VS255XY Replaced exhaust cam gear and have about twelve drive cycles without the check engine light, delivering the car to the customer today. The new gasket we installed with the solenoid on our previos attempt did have the screen, and the Baum cam and crank alignmen...	11

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