Automotive Technicians Technical Discussion and Fixes for Jul 28, 2014

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	Help Request	Answers
	2006 Audi A4 Cabriolet 1.8L no communication VIN: WAUAC48H66 Trying to perform Texas state inspection and fails for no communication. I can connect generic OBD II readers and they communicate. I also can communicate with VCDS. Not sure what the emissions machine (ESP) is not seeing. Had no problem with 2 previous inspec...	View
	1995 BMW 525i 2.5L wipers VIN: WBAHD6320S we have no wiper operation, we have 3 good fuses, and we have power at the wiper motor on the black/white wire only when the switch position is in high speed, we have the diagrams and we think we are looking at one and or both of the modules I.E. general modul...	View
	1995 BMW 525i 2.5L limp-home mode VIN: WBAHD6328S This is my own car, has been trouble-free for years 'til this... Check engine light comes on, few seconds later, "TRANS PROGRAM+" appears on dash display, then shifts into limp-home, stays in 3rd gear...no obd II port, have to read info through 20-pin connecto...	View
	1999 Chevrolet Silverado 1500 4.3L Mechanical VIN: 1GCEC14W9X Crank no start, fuel pressuer 65lbs, compression good, have spark, pulled upper intake for injector inspection found no leaks. Old plugs fuel fouled new plugs in. Cut fuel relay still won't fire, tested ecm fuse and ign fuse for fail durring crank, all checked...	View
	2001 Chevrolet Monte Carlo SS 3.8L radio VIN: 2G1WX15K11 There is a draw of 447 ma at the battery. Traced it to the amplifier, disconnected and the draw goes away and you can hear the sub woofers thump when you do this. Monitored all modules with a Tech 2, they all go inactive. Monitored voltage on circuit 2232 (amp...	View
	2011 Chevrolet Corvette Grand Sport 6.2L Unknown VIN: 1G1YU2DW2B This Corvette came in with dead battery, battery draw. I hooked up an amp probe to the positive battery cable. Everything looks fine, no draw, then you can hear a click it it starts drawing 8 amps, then goes off. It is almost timed about every 30 seconds. with...	View
	2000 Chrysler Concorde LXi 3.2L Misfire VIN: 2C3HD36JXY thanks for help up front this chrysler will not provide ground for number 3 injector tested wire from pcm to injector is good thought had bad pcm replaced with reman still no luck what are your guys thoughts thanks trouble code is 203	View
	1989 Dodge Dakota Sport 3.9L No Start VIN: 1B7FL69X3K Friends 1989 dodge Dakota, he part swapped (MAP, temp sensor. ecm, shutdown relay,pick up, coil) this car has a very weak spark and no injection, pin tested ecm with shop key info, all okay. I do not have a scanner for this vehicle. checked everything I can, f...	View
	2000 Dodge Ram 3500 5.9L No Start VIN: 3B6MF3663Y Runs and drives fine until it is turned off while hot, then cranks and won't fire. Code in Cummins module p1693 indicating a code in the Jtec module. Code in Jtec P0122 APPS signal voltage low. Crazy thing is if we clear the P0122 in Jtec with a scan tool it w... Trouble codes: P1693 (code in companion module), P0122 (APPS signal voltage low)	View
	2003 Ford Explorer Limited 4.6L Surge, Stall VIN: 1FMZU75W83 This one came from the dealer to our shop this morning. They replaced the maf crank sensor and the iac. Vehicle will start and idle at 2200 rpm for about 10 seconds. then it will idle down to 750. After it settles to 750 rpm it runs smooth for about two minute...	View
	2006 Ford Freestyle SEL 3.0L engine VIN: 1FMZK02196 check engine light is off but engine has a loud taping noise from timing chain area also at oil pan. removed pan inspected rod bearings all in good shape .	View
	2006 Ford F-250 Super Duty XLT 5.4L MIL Lamp on, low power VIN: 1FTSW21596 Ok here we go. 5.4 3v. Customer brought truck in stating he just had spark plugs replaced(at a dif shop) and ever since then it sets p0171/174 and has low power. by low power i mean it will go hwy speeds ok but is just not the power it should be. like maybe 75... Trouble codes: P0171, P0174	View
	2007 Honda Civic EX 1.8L A/C Pressures VIN: 2HGFA16817 Hello all, this '07 Civic sucks the low side down to a vacuum as soon as the compressor turns on. It has the correct charge in it, 0.45Kg with the proper PAG oil. The compressor was replaced due to the old ones inability to produce enough pressure - it would n...	View
	2007 Hyundai Sonata SE 3.3L No Start VIN: 5NPEU46F87 Car came in on hook with a no crank no start. Charged battery, cranks fine still no start. Fuel pressure is fine but car will run when starting fluid sprayed in t-body. No codes present or history. PID's are going crazy rpms fluctuate between 1600-64000. ECT r...	View
	2014 Hyundai Santa Fe Sport 2.0T 2.0L entire cooling system VIN: 5XYZW3LA8E We had a vehicle come in 1-1.5 months ago due to a frontal collision. Mechanically, we had replaced the radiator, condenser, and cooling fan. Radiator was a CSF aftermarket direct fit radiator, condenser was aftermarket as well, and a new dealer cooling fan. T...	View
	1989 Jeep Wrangler Islander 2.5L No Start, Poor Idle Quality, Cuts out VIN: 2J4FY39E7K Customer complains of intermittent no start. Fuel pressure good, injector pulse good, spark nice and blue at 20k, no codes. When it does start, it intermittently craps out under load at 2200-2500rpm, with no power and occasional backfires. Idles rough when run...	View
	2008 Jeep Liberty Sport 3.7L wipers, instrument cluster VIN: 1J8GN28K78 Vehicle came in with wipers running continuously and instrument cluster gauges inop and all warning indicators on. We replaced the tipm module. After replacing the module all symptoms are still present. Symptoms include: -Wipers run continuously until key is...	View
	2007 Land Rover Range Rover Supercharged 4.2L lighting module VIN: SALMF13487 have a land rover range rover with the lighting warning light flashing consistently. codes are u0182 lost communication with lighting control module. cant find any diagnostics or which wire is power or ground if any info on this it would be greatly appreciated...	View
	1999 Lexus ES300 3.0L Hesitation, Misfire VIN: JT8BF28G0X Vehicle came in four years ago and got all 6 coils and plugs changed. Now comes with P1310 and random missfire code P0300. The P0300 comes and go with the P1310., but the p1310 might or not cause missfire issues... It's intermittent and comes and goes... The c... Trouble codes: P1310 (Cylinder 2 ignition problem/igniter.), P0300 (Random missfire intermitten)	View
	1993 Lotus Esprit Turbo SE 2.2L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: SCCFC208XP Thanks in Advance Is any one out knows what is the fuel pressure suppose be I check fuel pressure its only 24psi Thanks again for any help.	View
	2006 Lotus Elise 1.8L Misfire VIN: SCCPC11166 Got this car as a trade-in. The Elise has the standard Toyota Celica GTS 2ZZ-GE engine but this car has a ForcedFed turbo kit. Owner said it has a bad cylinder and we found #3 was down to 60 psi compression. Took the head off and replaced #3 piston and rings w... Trouble codes: P1301 (Misfire level causing emissions increase), P0300 (p0301-), P0301 (p0302-), P0302	View
	2001 Mazda 626 ES 2.0L Vehicle Shake VIN: 1YVGF22C31 I changed all the motor mounts on this vehicle and it shakes bad at idle and in drive. With a.c. off the idle is at 750 and doesn't shake as bad... when I turn the a.c. on the idle drops instead of increasing for the load of the compressor. the rpms are around...	View
	2006 Mercury Grand Marquis LS 4.6L Air distribution VIN: 2MEFM75V96 Hello all: Hoping someone has seen this one before. It sounds pretty simple and logical when you first get into it. Driver starts the car on a hot day and selects "auto" on the AC control panel to cool down the car. The air kicks in and blows cold air out the...	View
	2001 Nissan Maxima GLE 3.0L Cooling Fans VIN: JN1CA31A21 to all nissan gurus out there. got this maxima that got me pulling hair. the compressor is on regardless of the off command from the control head. the pressure rises and so is the pressure until the pressure release valve opens and there goes the freon. the ec...	View
	2011 Nissan Titan PRO-4X 5.6L shifter VIN: 1N6AA0EJ7B Brought in because the shifter (automatic) was hanging up in park. Took several tries to get it to move into gear. Changed out brake switch - no improvement.	View
	2000 Oldsmobile Alero GLS 3.4L Starting VIN: 1G3NF12E2Y This vehicle was towed in for no brakes due to rusted brake lines. Had to remove battery to access lines for repair. Now car will not crank. Can jump starter and car will run. Have tried relearn procedure several times with no luck. Car has key less entry. Hav...	View
	2007 Pontiac Solstice GXP 2.0L Poor Idle Quality, Hesitation, Cuts out, Stall VIN: 1G2MG35XX7 Vehicle came in with a complaint of a check engine light on , smoke out the tailpipe, backfires. after pulling codes ( please see above list )plus p0420,po833,and p2096 codes also found car was low of oil and the turbo was leaking oil as well as oil in the int... Trouble codes: P0014 (Exh. Cam position system performance), P0300 (Engine misfire), P0302 (Cylinder 2 misfire), P0303 (Cylinder 3 misfire), P0304 (Cylinder 4 misfire), P0366 (Exh. Cam sensor performance b1)	View
	2009 Porsche 911 Carrera 4 3.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: WP0CA29929 Car Came in with a check engine light and rough idle once warmed up. Durametric scan tool showed 8113, 7501, and 0403 codes. OBD had P0175 and P0304. Fuel trim on bank2 -20%, bank1 -4%. Swapped O2's: no change. Confirmed O2's were hooked up properly. No exhaus... Trouble codes: 8113 (Valve Lift Adjustment Implausable Signal), 7501 (Bank2 Lambda Contol System too Rich), 0403 (Cyl 4 Misfire)	View
	1993 Subaru Legacy L 2.2L Cuts out VIN: 4S3BJ6337P Engine looses power after going uphill for a bit, and eventually stalls out, runs poorly for a short time after restart, checked fuel pressure,normal under all conditions, even when stalling out, has no codes when checking with scanner, no live data to look at...	View
	2008 Subaru Outback XT Limited 2.5L Mechanical VIN: 4S4BP63C98 Installed a new short block cranked motor till oil light whent out then started car sounds and runs fine after driving 25 miles sets code for cam over advanced ck oil coming to the turbo when cranking over ive got no oil out of the line the solinode shows 9 wh...	View
	2008 Toyota Highlander Sport 3.5L Tail/Stop Lamp VIN: JTEDS43A08 I need to replace a bulb in the LR tail lamp assy. It isn't obvious how to get to the light socket. I just printed up a 22 page procedure to R&R. Is this the only way or am I missing something. Thanks in advance,	View
	1977 Volkswagen Beetle 1.6L Excessive Emissions VIN: 1172034804 Hello Friends This is a new customer and he has a 1977 VW bug type 1. The engine has been re-built and they installed a re-built 1974 1.6 LT dual port engine, with a new cylinder head. The complaint that the customer has and has been fighting for a long time ...	View
	2003 Volkswagen Golf GTI 1.8T 1.8L transmisson VIN: 9BWDE61J93 Hey all, hopefully one of you VW guru's can help me out. First off i am not spectacular with Auto or tip tronic transmissions in any way shape or form and im so/so with VW's in general. This is my wife's car, we have had it for 4+ years and the problem has bee...	View
	2011 Volkswagen Jetta 2.0L Air Bag VIN: 3VW2K7AJ3B I got volunteered to fix this car b/c the used car dealer we do business with said "VW wants to much to fix it." I hate when that happens. I'm not very good with VW's so please bare with me. The problem the customer is having, is the passenger air bag off lig...	View
	2004 Volvo V70 2.4 2.4L gauges, tran VIN: YV1SW61T04 We have a very strange problematic vehicle. 1st sign of problem is when the transmission starts to bang on shifts, then the gauges go dead, then come back to life. After 3 or 4 times of this, the vehicle goes into limp mode with the gauges dead again. The cour...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1997 Chevrolet C3500 5.7L Hesitation, Cuts out, Stall VIN: 1GBJC34R9V Thanks for everyones great advice and info, after many dead end roads and sleepless nights found customers employee put diesel fuel in the tank by doing a burn test and comparing it. Drained both tanks filled with gas truck runs great. Have no idea why my fuel...	24
	2001 Chevrolet S10 4.3L abs VIN: 1GCCT19W11 wrong part from the dealer, ordered and boxed correct, part inside box wrong. no fault of me,,,did my job,,,lol thank for the help!	26
	2012 Chevrolet Express 2500 6.0L No Start VIN: 1GCWGFCB7C dealer said ng is an add on and is no warrenty. but owner got in a hurry and took to dealer, were it will probably be for weeks..	4
	2002 Dodge Grand Caravan Sport 3.3L No Start VIN: 1B4GP45372 after reading all the replies I checked the mux voltage at bcm and had 1.5 volts while cranking as it cranked the voltage started to drop.when the voltage got to .7 volts it would start.i changed the bcm and everything worked.	7
	2003 Dodge Grand Caravan SE 3.3L Surge, Cuts out, Stall VIN: 2D4GP24363 I took all the info and performed some of the tests and posted them in my update. I did replace the cam & crank sensors and the vehicle did run a little better but not perfect. I did take some recordings of the cam & crank sensors with my vetronix & vantage sc... Trouble codes: P1391 (Intermittent loss of CMP or CKP).	12
	2011 Ford F-150 Platinum 3.5L brakes VIN: 1FTFW1ET7B Thank You to all that took the time to reply . We replaced the vacuum check valve /sensor and the problem was gone for a few days and was intermittent . We finally managed to locate the cause of the issue .It was the vacuum assist pump located up under the b...	15
	2010 Honda Civic LX 1.8L electric VIN: 2HGFA1F56A thanks to all who replied to this problem of ours. Turns out the car had a bad radio that wouldn't unlock. Then, we got a used one with the same issue it wouldn't unlock. After some more head scratching we decided to get another used radio. That one unloc...	4
	1996 Jeep Cherokee Sport 4.0L overheating VIN: 1J4FJ2857T after the excellent suggestions from many of those who gave input, and checking and changing t-stats, water pumps twice, we removed the customer installed radiator, had it sent out, and was told it was partially plugged with sealer. of course the customer trie...	32
	2003 Land Rover Range Rover HSE 4.4L No Start VIN: SALLMAMC34 sorry techs forgot this was open, the problem ended up being the computer. fitted new computer and vehicle started	1
	2001 Mazda Miata 1.8L Stall VIN: JM1NB35331 So we have a fix, I set up the lab scope on the sensor, has good/normal pattern, ran engine until warmed up, put the wifes blow dryer on the sensor and let it run while watching the pattern, engine died after about 20 minutes, tried restarting while hot, patte... Trouble codes: P1345 (Cam Position Sensor Not Detected By PCM).	7
	2008 Mazda 5 Sport 2.3L No Start VIN: JM1CR29328 thanks for all replies.didn't find any problems at this time.sent veichle back to dealer to check alarm etc. dealer said found loose wire.??? has been a couple of weeks and no return.no news is good news,(i guess).thanks again.bill	4
	1989 Mercedes-Benz 560SEL 5.6L aux fan VIN: WDBCA39E7K hello thanks for your replies. with the help of steve we confirmed that the push button control unit was the problem. no signal to control unit but got a signal out of control unit.it would be more helpful if everyone would read entire post before responding a...	8
	2011 Nissan Sentra SR 2.0L No Start VIN: 3N1AB6AP1B intermittent no start fixed... Unbelievable, it was the battery. The battery was just a little low, a new one made all the difference. Hard to believe I know!	4
	2000 Plymouth Neon High Line 2.0L Coller line VIN: 1P3ES46C2Y Bruce form Ontario was spot on with: "The ones that I have seen have corrosion built up under the fitting at the rad that forces the line out of the rad and allows cross contamination of coolant and atf before it blows right out." Thank you Bruce for the cause...	5
	2000 Plymouth Neon High Line 2.0L #1 & #4 cylinders VIN: 1P3ES46C7Y I wish to thank all who have offered me help here. A number of recommendations were to scope the primary side of the ignition along with the cam & crank sensors. I'd sure love to do so, but lack a scope. The only reason this is being closed now is tha...	18
	2004 Porsche Cayenne Turbo 4.5L MIL Lamp on VIN: WP1AC29P04 Thanks guys for steering me in the right direction.There is vacuum t with check valve on the back of the intake right below fuel line connection by fire wall, got disconnected before the check valve that is why smoke machine didn't show a leak,but I didn't see...	5
	2000 Toyota Celica GT 1.8L Cuts out, Stall, MIL Lamp on VIN: JTDDR32T7Y Thank you all for the direction. I was indeed wise to doubt my ECM conclusion because first thing this morning I retested the pin voltage on IGF at the ECM and koeo had 5vdc. I started the engine and had 4.8-5.0 vdc while warming up but as it got hotter the vo... Trouble codes: P1300, P1305, P1310, P1315.	12
	2005 Volkswagen Jetta 2.5 2.5L 2-3 shift VIN: 3VWRG71K05 thanks for the help awesome engine design turn counter clockwise and jumps timing got it fix thanks for the replies guys	9

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