Automotive Technicians Technical Discussion and Fixes for Jun 20, 2013

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	Help Request	Answers
	1996 Acura TL 3.2L cooling system VIN: JH4UA3650T This car came in with a blown motor, found coolant in all cylinders with borescope, I replaced the engine (3.2 V6) hooked everything up, engine ran very nicely, however it will slowly warm up to overhear temp, i replaced the thermostat twice, removed the therm...	View
	2007 Audi A8 Quattro L 4.2L controls VIN: WAUMV44E67 Customer picked up this lease return A8 and now that its hot complains of a/c performance. Any Audi experts in in a hot climate familiar with known best center vent temps on re-circ. at idle and hi-way cruise conditions? Our service info (performance tests, ...	View
	2004 BMW X5 4.4i 4.4L oil fitler VIN: 5UXFB53544 just doing a easy oil change wrong. took oil filter, found a spring and a cup with slots in it.had dealer fax me parts picture does not show spring and cup with slots. went to euro shop with parts.thay said it goes up in parts that goes inside oil fiter. they ...	View
	2007 BMW X3 3.0si 3.0L Hesitation, Misfire, MIL Lamp on VIN: WBXPC93437 accidently wrote in the last question Trouble codes: P0304, P0305, P0306, P112D	View
	1995 Buick Regal Custom 3.8L a/c clutch VIN: 2G4WB52L8S Ok, so the customer brings his car in after installing his own compreesor & new orifice tube, the a/c will not run. We found .5 lb of refrigerant in system & fully charged to 2lbs, a/c still does not cycle. Scanned vehicle, found code p1531 (a/c low charge), c...	View
	2006 Buick LaCrosse CXS 3.6L all gauges VIN: 2G4WE58796 So the original owner puts 200000 trouble-free miles on this very nice Buick then gifts it to a college student. Within a week a new battery and cable end appear and all the gauges have stopped working: no speedo, gas, temp or tach. In addition the traction co...	View
	1998 Cadillac Eldorado ESC 4.6L Coolant VIN: 1G6EL12Y8W Hello, This customer says the car will overheat when driving on the Highway. I have run it for an hour at the shop and test driven it 2 times on the highway for about 10 miles each with no overheating. The guage gets to about 1/2 and stays there. Any thoughts ...	View
	2006 Cadillac CTS 2.8L starting system VIN: 1G6DM57T16 This Cadillac original came in for a no-start and another tech in our shop found the ignition switch had burned out. He replaced the switch and away the customer went. Four days later, the same thing happened...a no-start condition. This time she took it to th...	View
	1967 Chevrolet Impala 5.3L don't know VIN: N0TAVA1LBL Trying to help out a good customer with this old ride. After collapsing the four piston calipers and doing a standard brake job there is no pedal. We centered the combination valve and proceeded to bleed, but cannot get a pedal. We thought the brake lines may ...	View
	1997 Chevrolet K2500 Cheyenne 5.7L Brake pedal VIN: 1GCGK24R2V Hey guys, truck came in with low pedal complaint. Replaced front calipers cause bleeders broke. Replaced module cause scan tool reads up to 22 mph from wheel speed sensors and starts over from zero to 22 mph even up to 60 mph, they never go above 22mph. New mo...	View
	1998 Chevrolet Camaro 3.8L Hesitation VIN: 2G1FP22K1W Hello need help with this 96 Camaro 3.8 at first I thought it was just a bad crank sensor it coded for both knock sensors and the crank sensor . The check engine light was intermittent and bogging down . im thanking possible ICM It just seams odd both knock se... Trouble codes: P0327 (Knock sensor b-1 circuit low), P0332 (Knock sensor b-2 circuit low), P0336 (Crankshaft position sensor a circuit range/ performance), P1404 (Egr closed position performance)	View
	2007 Chevrolet Silverado 2500 HD Classic LS 6.6L No Start, Stall VIN: 1GCHK29D77 Vehicle brought in for stalling while idling. Once stalled, crank, no-start condition until fuel filter primed. Installed vacuum/pressure gauge at test port, primed to 10 psi and it quickly bleeds off. Primed again, than quickly clamped off both hoses from the...	View
	2009 Chevrolet C5500 Kodiak C5C042 6.6L MIL Lamp on VIN: 1GBE5V1999 I am hoping there's diesel tech out there who might have run into this. Bus came in mil light on,code p0154b. Tested main feed to intake air heater with cable disconnect from heater with Snap On AVR with pos connected to cable, neg to neg battery, amp clamp ar... Trouble codes: P154B	View
	2006 Chrysler PT Cruiser Limited 2.4L MIL Lamp on VIN: 3A8FY68816 Replaced pcm due to transmission control relay circuit problem, code P0882. That problem is corrected but now speedometer will not work. Identifix says to program the pinion factor, have tried Genesys, Snap on, and Bosch scanners, none will allow programming p... Trouble codes: P0501 (Speed sensor rationality)	View
	1994 Dodge Dakota 3.9L No Start VIN: 1B7GL23X3R Greetings fellow techs, Got a 1994 Dodge Dakota 3.9 V6 that's kicking our ass. Towed in with no start condition. No spark or injector pulse. Check engine lite does come on with KOEO and I'm able to communicate with PCM. What's happening at the ASD relay is thi...	View
	1998 Dodge Ram 1500 ST 5.9L Hesitation, Misfire, Poor Fuel Economy VIN: 3B7HF13Z0W Customer just bought truck used came to me with several issues. First was a hissing noise from the dash area. Low power, rough idle, the trans shifting a lot, and misfire under load. There are no codes. I started with the hissing noise. I checked all the vac l...	View
	2003 Dodge Ram 2500 5.9L Door locks VIN: 3D7KU28C43 on acceleration above 30kmph door locks actuate and interior lights come on/go off. door ajar light comes on. No codes in BCM and IPC modules. does not happen below that speed, does not happen on decel.	View
	2006 Dodge Grand Caravan SE 3.3L Trans Fluid VIN: 1D4GP24R56 Customer states very intermittently entire vehicle shakes, steering wheel shakes, brake pedal pulsates, trans fluid bubbles out of Trans dipstick tube	View
	1998 Ford F-150 XLT 4.6L overdrive Customer's complaint was a flashing overdrive indicator and a intermittant overdrive shift condition which translated to a symptom of overdrive toggle shifting.I scanned the vehicle and got a P0503 so I removed the transfer case extension housing to inspect fo...	View
	2001 Ford F-250 Super Duty Lariat 5.4L No Start VIN: 1FTNX21L71 Hello Group, New customer brought this truck in, cranks OK, has spark and has fuel pressure but injector pulse disappears after a few revolutions. The pulse width on the scanner also mirrors this. No theft lights on, the power side of the injector harness show...	View
	2001 Ford Windstar LX 3.8L Cuts out, Stall VIN: 2FMZA51441 Thanks in advance to all who reply. Customer states van will shut off when driving just like someone turned key. I have not been able to duplicate and there are never any codes. It will do this whether cold or hot, short or long drive, and will always restart....	View
	2003 Ford Taurus SE 2-Valve 3.0L Poor Idle Quality, Surge, Cuts out, Stall VIN: 1FAHP55433 Hello,This vehicle came in for no A/c oringinally.Has been in once before for high idle.IAC replaced then.After a/c line was replaced notice high idle to point that heavey braking required.This is a fleet account vehicle and is driven by many different people....	View
	2005 Ford F-250 Super Duty Lariat 5.4L hydraulic VIN: 1FTSX215X5 Vehicle was at another shop for the same problem .They did front Brakes [pads] and a brake fluid flush. Truck has poor brakes and low pedal.Creeps to floor only with engine running. Replaced front calipers [Seized pins] and Master cylinder.Serviced rear brakes...	View
	2008 Ford F-150 XLT 4.6L No Start VIN: 1FTRX14W98 Truck towed in-no start. Said it ran on starting fluid for his son. Checked for fuel-none. Inertia switch and fuses good. relay good. Power and ground at pump with key on. Put new motorcraft fuel module in today. Ran for maybe 5 seconds and died. I have power ...	View
	2005 GMC Sierra 2500 HD SLE 6.6L Excessive Emissions, Surge, Misfire, Poor Fuel Economy, Black/white smoke VIN: 1GTHK23245 Thanks in advance for the help. Pulling my hair out on this one. we don't do a lot of diesel work here but enough. Mostly 6.0 Fords and Sprinter fleet work. This is my first real experience with a Duramax and its turning into a doozie. Truck is owned by a reti... Trouble codes: P0305 (Misfire), P0303, P0404, P0401 (EGR flow insufficent)	View
	2012 Honda Pilot EX-L 3.5L moon roof VIN: 5FNYF4H59C Hello all , This one is for the Honda techs , I have a 2012 pilot with an inop. moon roof . So I check powers and grounds ohm the switch , ohm the wiring between motor and switch .. all good . Now this system isn't complex at all , it's basiclly a window motor...	View
	2003 Hyundai Elantra GLS 2.0L o2 sensor VIN: KMHDN45D43 have car here with code p0133 bank 1 sensor 1 insufficient switching o2 sensor have checked o2 sensor working correctly using full band width no vacuum leak to be found vacuum gauge shows 20hg at idle map sensor value on scan tool changers from 4.8 to 80 psi a...	View
	2006 Kia Sedona LX 3.8L Electronic VIN: KNDMB23356 Current customer of ours, she purchased the van from us in July of last year. We have done all the oil changes and maintenance on the van, including replacing the starter and dealing with an EVAP code. We have a check engine light coming on at times, I scanne...	View
	1998 Lexus LS400 4.0L No Start, Poor Idle Quality, Cuts out, Stall, start then stall VIN: JT88H28F1W vehicle came in from another shop with a start then stall condition. We were told that this started after they replaced timing belt. Vehicle was also brought to the dealership before us. The dealership diagnosed it as a faulty ecu. Initially thought we it was...	View
	2002 Lincoln Blackwood 5.4L Tonneau Cover Module VIN: 5LTEW05A52 Customer came in wanting to be able to use the Covered Bed. tested and found the Tonneau cover Module to be inop Scanned vehicle and came up with this code Code B1342 : ECU Defunct Have located the parts new just trying to find out if the module has to be p...	View
	2003 Lincoln Navigator 5.4L ride controll VIN: 5LMFU27R83 I always say I'm not going to work on these, BUT. Long story short came in the shop not working the car was flat on the groung. Diagnosed solid state relay and both front height sensors. Now the system works flawlesly exept i get a service suspension message w...	View
	2004 Lincoln LS 3.9L engine temp VIN: 1LNHM87A94 don't know if i am looking for something that is not a problem. another shop replaced thermostat and housing and water pump, i found a cracked plastic coolant pipe under intake that connects to thermostat housing, replaced part and vac filled coolant system, c...	View
	2006 Lincoln Zephyr 3.0L no ground to a/c relay from ecm car came in w/dead battery ,no power to what appear to be new compressor and a/c relay jump to ground .soon find out w/scan test about the evaporator temperature sensor , take dash apart replace sensor after that we recover freon to make sure we recharge w/the...	View
	2000 Mazda B2500 SE 2.5L Mechanical VIN: 4F4YR12C4Y Mr Clark was driving along and quote "POOF" engine died. Fuel pump prime activates. Power is going to plugs. all fuses check out for continuity. disconnected MAF. no start. Since I am unfamiliar with Mazda's am seeking help with this matter, perhaps one of you...	View
	2007 Mazda CX-7 Touring 2.3L Stall VIN: JM3ER29317 We inherited this car as a not running problem. It has a new HP fuel pump, camshaft fuel pump lobe is good, cam timing is verified correct, exhaust not plugged, mass air known good. It will start if you key on and wait about 2 min, slowly the high pressure sid...	View
	1976 Mercedes-Benz 300D 3.0L Brake lights VIN: 1151141204 I have this old Mercedes Benz that has no stop lights. All fuses are good, at the stop light switch I have no power to the black/ red violet wire. If I take a power probe & feed power to the black/red wire on the stop light switch connector the pass. side stop...	View
	2001 Mercedes-Benz C240 2.6L Seats VIN: WDBRF61J91 Vehicle Came Into Shop With SRS light on and both driver and passenger seat inoperabable performed scan test and found fault codes B1076 upper control panel unit failure and B1010 Emergency Tensioner Retractor Igntion squib R12/6 circuit short to ground. Remov...	View
	2000 Mercury Cougar 2.5L Starting VIN: 1ZWFT61L8Y This car still has a random stall issue. I was finally able to test that the fuel pump driver module is bad. The problem is, in this part of the country, there are no modules available. Does anyone have a source for these, or a proper "work-around" to replace ...	View
	2006 Nissan Altima SE 3.5L Coolant VIN: 1N4BL11E06 This car has thick oily sludge accumulating in the coolant reservoir. The customer has noted some oil consumption approximately 1 quart between oil changes. The sludge is motor oil color, but much thicker like a grease emulsion. I removed the engine oil cooler...	View
	2002 Oldsmobile Bravada 4.2L MIL Lamp on VIN: 1GHDT13S72 4.2 p1345 please help!!! been on this one for a couple weeks now any help would be greatly appreciated. To start from the beginning the vehicle was running very poorly with trouble code p1345. Customer replaced vct solenoid with no change in engine performance... Trouble codes: P1345 (Camshaft correlation)	View
	1990 Toyota Camry DLX 2.0L radiator fans VIN: 4T1SV21E0L This Camry overheats because the radiator fans won't come on even with the AC running and to my memory the one fan is commanded with AC on, the other turned on with a temp switch. As I recall from previous repairs it's a simple system that the temp switch turn...	View
	2006 Volvo S80 2.5T AWD 2.5L MIL Lamp on VIN: YV1TH59216 This vehicle came in with the mil indicator illuminated. We checked for codes and found the long term fuel trim codes. Then we smoked the intake track to check for vacuum leaks we found multiple small leaks and repaired them. Then re-smoked the car to double c... Trouble codes: 212D, 21ED	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2008 Audi A4 Quattro 2.0L Variable timing VIN: WAUDF78E48 Thank you for your reply. After doing the scope test ( visit link ) I know the timing is off. I told the customer that we need to dig deeper and that the timing chain in the back of the head could be stretched. The customer contacte...	16
	1984 Chevrolet Corvette 5.7L dash cluster VIN: 1G1AY078XE Thanks to all, this one is out the door. As you recall we first attempted to install a salvage yard dash in this 84 Corvette. The cluster at least lit up and worked but after 5 seconds or so, the dash would dim down so it was about impossible to see in the day...	6
	1999 Chevrolet Tahoe LS 5.7L No Start VIN: 1GNEK13R7X CHECKED IGNITION SWITCH OK. WITH HELP FROM IDENTIFIX TECH LINE TRIED MULTIPLE TEST SUCH AS TRYING TO START ON ALT FUEL SOURCE WOULD NOT START CHECKED MAP SENSOR EGR SYSTEM MASS AIR FLOW SENSOR NO LUCK. CHECKED FOR BAD VALVES JUMPED TIMING CHAIN. SWAPED CRANK S... Trouble codes: P1336.	56
	2005 Chevrolet Tahoe LS 5.3L battery VIN: 1GNEC13TX5 Thanks for all the replys guys; finally (after disconnecting BCM, onstar, checked seat switches, etc) the source of the Drain was the Driver's Door Module (DDM);suggested by Seth from NY and Timothy from Winsconsin. I opened it up and found the circuit board w...	37
	2006 Chevrolet Impala LS 3.5L Rotor VIN: 2G1WB58K36 Guys, you are great. It seems that there was something going on with ABS system. We bled it with a scanner, drove it bunch of times again and it seems fine now. Thank you all!	15
	2007 Chevrolet Avalanche LTZ 5.3L No Blower at any speed using A/C or Heat VIN: 3GNEC12007 Got out the low amp clamp. Blower went as high as 23A on high speed. It stayed around 16A most of the time, but would drift above that from time to time and maxed out just over 23A. After a while of running at this high amperage the blower control module wo...	20
	2008 Chevrolet Equinox LT 3.4L Mechanical VIN: 2CNDL53F08 Ok people, here is a summary: Brake switch was not an issue, this design cannot put any pressure on the brake pedal. Brake pedal was not binding in any way when problem surfaced, so that wasn't the problem One way valve at the booster wasn't either, I tried...	8
	2009 Chevrolet Silverado 3500 HD LT 6.0L Unknown VIN: 1GCHK84K59 Well this is a first for me! I posted this truck and got 2 replies from the same gentleman thats it! Chris from Cali was helpful with a great discription of the bus communication. I am just very suprised that on a GM truck I didnt get more help. Good news is I...	2
	1998 Dodge Ram 2500 5.9L Misfire VIN: 1B7KF2369W The customer declined half the work, he did approve a fuel filter and I put terra clean diesel injection cleaner in with fuel filter. That did not appear to help at all. The customer declined to check valve adjust and compression. But chances are it is the in...	9
	2005 Ford Five Hundred SEL 3.0L Unknown VIN: 1FAHP27115 The problem was the 2 o rings between the pump and the case. This is the supply pressure to the valve body. The PDA mes and pcc mes pressures were real eratic setting the codes. After splitting the case to replace the o rings, the pressures are now steady and ...	3
	2008 Ford Escape XLT 3.0L MIL Lamp on VIN: 1FMCU03148 Thanks for every ones help. Jay was correct on the reason for the ECT codes. Coolant was boiling coming out the head causing pockets of steam and confusing the sensor readings. After customer went ahead and dropped it off for further testing. We test drove it... Trouble codes: P0117 (ECT signal low), P0119 (ECT signal erratic).	8
	2009 Ford F-250 Super Duty Harley-Davidson Edition 6.8L Fade VIN: 1FTSW21Y79 Brake pedal would get spongy after hard stop. After this happens there is always air in system. Replace master cylinder, HCU, calipers and brake hoses. Found steel braided lines between master and HCU bad. They would suck air after a panic stop. Replace hose...	11
	2011 Ford Escape XLT 2.5L Trailer wiring VIN: 1FMCU0D76B Thanks to Len and Vincent for clearing up my confusion. The existing harness connection for trailer towing is dead, and there is no kit available from Ford to add the factory tow wiring. What is needed is a trailer module kit (Ford part # 7T4Z15-A-416B) (thank...	2
	2007 GMC Yukon SLT 5.3L Hard start VIN: 1GKFK13087 Some replies suggested a cam sensor or temp sensor problem. Scanner showed [...] engine hot and cam sensor scoped out OK. Others said possible fuel pressure reg. leaking and to pull vacuum hose to check. I would have already done this IF the vehicle had o...	13
	1999 Jaguar XK8 4.0L Latch VIN: SAJGX2046X There were two suggestions, one of which was the answer: we swapped the hose connections at the pump and the latch works normally now, as well as the quarter windows, which were not going up when the top was up, due, no doubt, to the latch mis-function caused ...	4
	2000 Lincoln Town Car Signature 4.6L No Start VIN: 1LNHM82W4Y I HAVE STOPPED ON CAR PER THE CUSTOMER. WHEN I AM ALOWED TO CONTINUE I WILL REOPEN WITH THE FIX SORRY	9
	2007 Maserati Quattroporte Sport Gt 4.2L Mechanical VIN: ZAMCE39A67 Thank you John, thats what i was looking for. the car is fixed and all is good	2
	1982 Mercedes-Benz 380SL 3.8L Poor Fuel Economy VIN: WDBBA45AXC sorry for long wait,parts delay.replaced fuel distributor and warmup regulator.fixed the extremly rich condition.thanks for all the help.replaced o2 sensor and plugs also,they had abot 1mm of black carbon on them.performed intake cleaning and replaced old fuel...	7
	2001 Mercedes-Benz E320 3.2L compressor VIN: WDBJF65J81 Thank you to everyone for your helpful replies, I'm going to call this one fixed. As I said, we replaced B12 and B12/1, and were still getting an intermittent low refrigerant code, and this system has been triple checked for leaks. Thanks to Marcus advice, I w...	10
	1960 Porsche 356B 1.6L Poor Idle Quality Thanks for all the responses. Found large amount of play in the bushings for the butterfly shaft. We decided to replace the carbs and intake manifolds with a set of weber carbs. WorldPac offers a kit that updates these cars with fresh carbs intakes and they wo...	11
	1995 Subaru Impreza L 2.2L Torque Conv VIN: JF1GF6354S Thank you everybody, I had removed the valve body and replaced the lock solenoid and the temp sensor car seems alright now	3
	2007 Subaru Forester X 2.5L Hesitation, Cuts out, bogs VIN: JF1SG63647 Thanks for the help, you guys were right on, plugged cat. The material in the post cat had broken up and plugged up the exhaust. Without the scanner I would have instinctually looked in that direction but sometimes we get blinded with technology. My lack of...	6
	1999 Toyota RAV4 2.0L No Start VIN: JT3HP10V3X well seems like everyone thought the same as i did. customer would not come clean about jumping vehicle backwards but after replacing the 100 amp fuse and efi fuse and the ignition fuse, with no shorts visible, i installed the 2 melted coils and the rav 4 star... Trouble codes: P1300, P1310.	7
	2004 Toyota RAV4 2.4L MIL Lamp on VIN: JTEGD20V14 it is come back with the same PO442. I will order a new canister and will update . thanks everyone and God bless Andy Trouble codes: P0442.	9
	2010 Volkswagen Tiguan S 2.0L Calipers VIN: WVGBV7AX1A Thanks for the replies, as many indicated James had nailed it, but unfortunately, our Genysis did not have the capability with its current software to properly retract,extend and relearn the park brake motors. We manually retracted the brake motors by applying...	6

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