Automotive Technicians Technical Discussion and Fixes for Aug 29, 2013

Join Now

Prev	Professional Automotive Repair Technical Discussions for August 29, 2013 International Automotive Technicians' Network (iATN) - Members Only	Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for All Makes and Models

	Help Request	Answers
	2002 Acura RSX 2.0L compressor and a/c fans VIN: JH4DC548X2 This is a real head scratcher.. I have an A/C compressor and Condensor fans that are inop. My genisus shows A/C temp at -40F. I have tested all of the temp sensors (Evaporater sensor replaced, Outside temp sensor, sunlight sensor, and inside temp sensor all ha...	View
	2004 Acura MDX Touring 3.5L Vehicle vibrate at high speed VIN: 2HNYD18884 Customer state when driving at 50/60 MPH entire vehicle body vibrates Codes pulled from vehicle 43-1 R/R wheel lock PO700 A/T system failure P1710 Low hold switch failure 120-1 TPM-4 CTRL unit failure Any advice would be appreciated	View
	2009 Acura MDX 3.7L battery VIN: 2HNYD28269 The car came back with a draw, I disconnect the handsfreelink unit and the draw when away. I did more research after half hour of the unit been disconnect draw came back. We then pulled fuse #5 and the draw temporarily went away. So we started pulling more fus...	View
	1996 Audi A6 2.8L oil pressue light VIN: WAUFA84A8T car came in with intermittent oil light on, checked oil pressure w/gauge over 25 psi hot at idle, replaced sender. light still coming on, pulled dash and checked wire from sender to dash.. good readings, sent dash out for repair and told they couldn't find a p...	View
	2003 BMW 745Li 4.4L MIL Lamp on VIN: WBAGN63473 Problem car data: Vanos position inlet bank 2 120 degrees Vanos position exhaust bank 2 120 degrees Vanos adaption inlet bank2 132.6 degrees Vanos adaptation exh bank2 72.50 Same readings on bank 1 Valvetronic mode limp home Same readings from a simi... Trouble codes: 27B6, 27BE, 27BF, 27C0	View
	2010 BMW 528i xDrive 3.0L Extended crank VIN: WBANV1C58A Customer's concern: extended crank, intermittent. Was finally able to duplicate after hot soak. Found tsb for reflash of computer. Has anyone done that and have success in solving probelm?	View
	1988 Chevrolet C1500 Silverado 5.7L 1-2 shift VIN: 1GCDC14K6J This is my vehicle and I recently rebuilt the trans in this thing. It's a 700R4 without the aux. valve body and what occurs is it will shift to 2nd and under light throttle it make a weird grinding type noise which I assume is clutch chatter. If you are under ...	View
	1990 Chevrolet V1500 Suburban Scottsdale 5.7L Poor Idle Quality, Stall New customer explained motor has 15,000 on it, recentily had another shop trying to correct idle, Main problem is I have forgotten any thing I most everything I knew about these systems and need you guys to refesh my memory so I can diagnose it properly and no...	View
	1998 Chevrolet S10 LS 2.2L Cuts out, Stall, Misfire VIN: 1GCCS1944W when we start up and step on the brake enjine dies, when we take the brake lite fuse out and step on the brake and put gear slector in reverse enjine dies. Any help? Trouble codes: P0355	View
	2007 Chevrolet Express 2500 4.8L Poor Idle Quality, Misfire VIN: 1GCGG25V57 Vehicle in shop for Check Engine light on, scanned computer and code P0300 stored. Scanned misfire counters and only cylinders 7 and 8 show misfires, cylinder 8 has 100x more misfires counts. The idle speed is normal but slightly rough, the motor will smooth o... Trouble codes: P0300 (Random misfire)	View
	2008 Dodge Ram 3500 Laramie 6.7L engine VIN: 3D7MX38A28 This diesel truck has a ticking noise coming from the engine when warm- sounds kinda tinny- when on the ground- sounds like its coming from the drivers side- but when in the air is coming from the right side- disconnected torque convertor bolts- definately com...	View
	1996 Ford F-350 XL 7.5L poor cluctch pedal/shifting VIN: 2FDKF37G1T Truck came in for hard sifting, one of the springs had broken from the clutch disc. release pressure at the pedal was great and at about half way(normal range). after installing new clutch kit the pedal is soft and the clucth engages/disengages almost at the f...	View
	2002 Ford Taurus SE 3.0L No Start, Stall VIN: 1FAFP53U72 Hi all, The vehicle came in originally with in intermittant no start and stall. Found fuel rail pressure at 25psi, replaced fuel pump. After fuel pump replacement found fuel rail pressure would usually hold around 40psi, intermittantly would read at 15psi (ha... Trouble codes: P0191 (Fuel rail pressure sensor A cicuit range performance)	View
	2005 Ford F-250 Super Duty XL 6.0L No Start VIN: 1FTSW21P95 I took this job over from an employee of mine. He did an EGR delete and oil cooler replacement as a preventative measure. Truck was running and starting fine. After doing the work, truck started and ran for about a minute. It then died and would not restart. C...	View
	2006 Ford F-250 Super Duty XLT 5.4L steering control VIN: 1FTSX21536 Hello.Have this Ford F-250 5.4l in the shop for a wandering issue.Customer just purchased the truck and is complaining that its near impossible to keep the truck going straight.Especially if he is towing his camper.Rode with him to verify issue.Definetly wande...	View
	2006 Ford Fusion SE 3.0L Poor Idle Quality, Hesitation, Surge, Misfire VIN: 3FAFP07116 Went the car was cold look fine. Went the car come hot, a noise from the intake come. The noise lock like a small explosion in the intake. The idle was not good. The car have no power. The engine stall some time, and the rpm dont go over 2000 at the idle. Fir...	View
	2006 Ford E-250 4.6L oil pressure, temp gauge, digital odometer VIN: 1FTNE24W26 vehicle arrived, owner complaint , no oil or coolant temp gauges, odometer not operating, intermitent chime sound while driving, confirmed both gauges pinned needles below normal,digital odometer not operating or intermitent bizarre numeric values.cluster modu...	View
	2007 Ford Expedition Limited 5.4L Battery Drain VIN: 1FMFK20547 Vehicle has a parastic drain. The kicker is that the draw comes and goes. After giving the vehicle enough time for modules to power down, the drain will go from .980amps to .30 amps or less. It has no time schedule as to how long the drain last or goes away. W...	View
	2002 GMC Envoy SLE 4.2L Air Duct Flow VIN: 1GKDT13S12 Drivers side air is coming out of vents as requested. Pass side only comes out hot. Don't know where to start. Don't really want to out source the job. Need help. Has dual temp controls. Thanks al	View
	2002 Hyundai Sonata 2.4L Stall VIN: KMHWF25S32 this car came in and it stalled only in drive ... it will not stall in park , neutral and reverse . as soon as you put it in drive it stalls . the od ,2nd , and ud trans solenoids read at [...] while the other are at zero . the transmission internal wirin... Trouble codes: P0335, P0102	View
	2003 Jeep Wrangler Rubicon 4.0L engine VIN: 1J4FA69S53 This vehicle came in with a bad engine tick in the valve train and oil pressure gauge at 0 and check gauges light on.The light would be out and gauge would read when cold but would drop off when warm but seems to be some what eratic sometimes when warm it is o...	View
	2003 Lexus ES300 3.0L timing belt VIN: JTHBF30G73 car came in for coolant leaks. water pump was leaking.(other shop did tbelt service a few months ago)found bracket from eng mount to alt pivot bolt missing,belt guard at crank pulley missing. cam gears rubbing rear cover( 6 bolts used were too long)rt cam gear...	View
	1972 Mercedes-Benz 350SL 4.5L location VIN: 1070441200 normally I change expansion vale with compressor and dryer, but don't have much infor on this car. does anyone no where expansion valve is and how to change it. i'm assuming this is my problem. I did compressor and dryer with retrofit and it was really cold. c...	View
	2004 Mercury Sable LS Premium 3.0L HVAC system VIN: 1MEFM55S04 Help! We are really pulling what is left of our hair on this one! This vehicle loses its charge within a half a day. We have repeatedly checked for leaks, both with dye and a halogen detector and come up empty on results. The system passes the vacuum leak-down...	View
	2001 Nissan Frontier SE 3.3L a/c VIN: 1N6ED27Y51 I had this truck posted awhile back because the compressor intermittantly doesn't come on, but it would not act up in the shop then. At that time I replace the pressure switch at the condenser. Today it came in not working so I did some diagnosis. Here are the...	View
	2003 Nissan Altima 2.5L MIL Lamp on VIN: 1N4AL11D73 this one has me pulling my hair. speedometer quits working and car wont shift.but if I hook up scan tool to look at trans data everything starts working fine. speedometer works and car shifts with no problems.any help would be appreciated. Trouble codes: P1574	View
	1994 Oldsmobile 88 Royale 3.8L Misfire VIN: 1G3HN52L3R This problem started about a few days ago.the car was quitting when it got hot.i changed the crank sensor and all seemed ok.a few days later it started to missfireon number 5.i changed plug and wire .car drove and ran good. Went to town about 5 miles seemed fi...	View
	2001 Toyota 4Runner Limited 3.4L MIL Lamp on VIN: JT3GN87R51 Hey all I have this toyota that has a code p0440 Evap system failure. I smoked tested system and found that the vent solenoid on the canister will not close. I have confirmed operation of the purge solenoid. the 3 way switching valve on the fender also is ope... Trouble codes: P0440 (Evap System)	View
	2005 Volvo XC90 V8 4.4L Hesitation, Surge, Stall, MIL Lamp on VIN: YV1CZ85255 Customer stated engine stall at traffic light after stopping for couple second. Check engine light on with the codes stated above. This vehicle last oil change was 26497 miles ago. Got in the car, put in drive and transmission slam into gear. Symptom get worst... Trouble codes: P0193 (Fuel rail pressure sensor high - input no sub type information), P0506 (Idle air control system rpm lower than expected), P0175 (System too rich Bank 2), P0172 (System too rich Bank 1), P0089 (Fuel pressure regulator performance), P61A6	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2007 Audi Q7 Premium 4.2L drivers window VIN: WA1BV94L57 Thanks to all who replied, especially Cheng. His reply was right on the money. I tried it first so I'm not sure if the others would work also. This is it-lower window, hold switch 3 seconds after window is down, release switch, hold switch in down position aga...	4
	1992 Chevrolet C1500 Cheyenne 5.7L Converter VIN: 1GCEC14K6N Thanks for the replies. Some guys are still blowing thru the help request without reading it thoroughly and then giving a response that doesn't apply. Big thanks to the ones that understand the request and take the time to give input. After replacing pump i...	8
	1999 Chevrolet K2500 5.7L MIL Lamp on I would like to extend a heartfelt thank you to all who took the time to offer their input. I was concerned with the fuel pressure readings taken and not having a similar vehicle to test, I reached out to my fellow techs. The majority concluded that the runnin... Trouble codes: P0171 (lean bank 1), P0174 (lean bank2).	45
	2006 Chevrolet Colorado LT 3.5L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 1GCCS19636 this one is not fixed yet i have added more techs to the problem and we will still be working to find the problem and hopefully i will be able to share the info i learn it has got to be some thing simple that i overlooking but still in reduced power mode and n... Trouble codes: P0122, P0222.	10
	2005 Chrysler PT Cruiser Classic 2.4L mil VIN: 3C4FY48B65 Well I cleared the code and it took a while for it to return, then it came back with two tps codes. Inspected the wire harness ,removed the loom where it goes across the trans (Thanks Butch !)just above cat.I found many of the wires melted together. No obvious...	5
	1999 Dodge Durango SLT 5.2L Poor Idle Quality VIN: 1B4HS28Y0X Before I removed the intake manifold I noticed a cracked vacuum line at the throttle body. When I previously smoked this for vacuum leaks I saw smoke coming from this area but dismissed it as coming from the snorkle tube fitting on the throttle body. I repla... Trouble codes: P0645.	15
	1999 Dodge Ram 1500 Sport 5.9L Heads VIN: 3B7HF13Z9X Thank you to everyone who replied. I bit the bullet and went with both heads, got a newer / thicker casting, lapped the valves and cleaned the seats and put it all back together, runs like a champ. Thanks again!! It sucks doing your own vehicle but you all...	22
	2001 Dodge Ram 1500 WS 3.9L MIL Lamp on VIN: 1B7HC16X01 Customer came back but did not want to replace cat, he said that he drove it through weekend and the monitors all set so he got it through emissions testing so for the time being he is happy. Don't know when we will see the truck again I will update when we ge... Trouble codes: P0420 (Cat Efficiency low bank 1), P0463 (Fuel Level sending unit volts to high).	14
	2003 Ford F-250 Super Duty XLT 6.0L Cuts out VIN: 1FTNW21P03 hello and thank you for your help. we did do some of the checking you suggested even the air in the fuel check and the dropping of voltages. all checked out good. we got to the point of unplugging modules to see if we had one interrupting the pcm. then I re...	9
	2005 Ford Focus ZX3 2.0L Clutch VIN: 3FAFP31N45 Thanks for all the help. upon investigation i found some cracking in the clutch rubber line. got a line from the stealership bled and shipped the car. 5 days no call	21
	2006 Ford F-150 XLT 5.4L MIL Lamp on VIN: 1FTPW14V76 Thank you for all your help and backing me up. Also it was a typo and the truck has 140.xxx on it. I believe the manifold fixed it and if it does set at least I can now put a cat in it with out fear of the leak taking out the new cat. Trouble codes: P0420 (Cat eff bank 1).	22
	2008 Ford E-350 Super Duty 5.4L Running rich VIN: 1FDWE35L38 Sent PCM in to have rebuilt and processor was bad. Installed new computer and programmed, runs great. Other weird thing, this was a Ryder truck. When programming Pats system we found that they hide a key in truck and use regular cut key. So if keys are lost... Trouble codes: P2196 (O2s11 not switching correctly), P2198 (O2 sensor stuck rich bank 2 sensor 1).	13
	1992 GMC C2500 Sierra SLE 5.7L Poor Idle Quality, Stall VIN: 2GTGC29K7N thanks everybody who suggested fuel pump the was the culprit, even though alldata info on fuel pressure was 9-13, which i had 11 and flow was good. new pump and vehicle is happy.	16
	2003 GMC Sierra 1500 HD SLE 6.0L Drive-axles VIN: 1GTGK13U13 FIRST THANKS TO ALL THAT REPLIED TO MY REQUEST. MANY OF YOU SUGGESTED A DIFFERENCE IN TIRE CIRCUMFRENCE. SINCE I PUT NEW TIRES ON THE TRUCK A YEAR AND A HALF AGO I DIDNT CONSIDER THAT POSSIBILITY. I MARKED ALL THE TIRES AND ROLLED THE TRUCK FORWARD ABOUT 40 FE...	11
	2003 GMC Yukon SLE 5.3L cruise control VIN: 1GKEK13Z43 lots of good replies to this concern, nick hit the nail on the head, I should have known better, vehicle has aftermarket taillight housings and only the brake light bulbs were LED. install OE bulbs and cruise working fine. the 5 volt reference coming out of th...	10
	2003 GMC Savana 3500 6.0L power lock VIN: 1GTHG39U83 Sorry I forgot to close this earlier. I did find the problem - there was a radio mounted under the passenger seat. it was fastened to the floor with sheet metal screws - one went right through a harness under the mat. Someone had pulled the seat and radio out ...	3
	2005 Honda Civic LX 1.7L Compressor VIN: 2HGES165X5 Took out pressure switch to test, showed no continuity. So, it looked like i was going to have to head elsewhere. However, compressor started cycling when system was recharged. So, it looks like old pressure switch was stuck. Replacing switch with new one ...	24
	2002 Jeep Liberty Sport 3.7L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall, Poor Fuel Economy VIN: 1J8GL48K32 AFTER FUEL PUMP REPLACEMENT STILL HAD 80 PSI USED 2ND FUEL PRESSURE GAUGE PSI WAS CORRECT BAD SNAP ON GAUGE ALSO FOUND #2 CYLINDER ROCKER OFF PUT BORE SCOPE IN HOLE VALVE SEAT OUT OF HEAD CUSTOMER WAS TO GET USED ENGINE BUT DECIDED TO TRADE IT IN VECHILE R...	10
	2007 Kia Sportage LX 2.0L Abs Module VIN: KNDJF72477 THANKS GUYS. SOMETIMES YOU FIX SO MANY "TECHNICAL" PROBLEMS YOU FORGET ABOUT THE BASICS. TIRE SIZES WERE DIFFERENT FRONT TO BACK. ORDERED 4 NEW TIRES OF THE CORRECT SIZE AND PROBLEM SOLVED.	5
	2005 Land Rover LR3 SE 4.4L transfer case VIN: SALAA25495 Charlie and a few of the other responders were correct about the transfer case module being bad. After removing the battery and box, we removed the module and found evidence of battery acid damaging the unit. We checked the connectors and they were clean. We a...	9
	2003 Pontiac Grand Am GT 3.4L Misfire VIN: 1G2NW52E03 We tried swapping coils which did not change anything. The fuel pressure regulator had been previously changed. I sold this car to my mechanic and it looks like he is going to drive it for awhile until it gets worse. At this point it uses a little coolant a...	16
	2005 Saab 9-7x Linear 4.2L Differential VIN: 5S3ET13S75 We installed a new OE encoder motor and shipped it. The customer is satisfied. I wish I understood why the repair works. Special thanks to Mark, Mike, & Alex who were familiar with the problem and cure. The very slight posi action was confirmed normal by A...	7
	2008 Subaru Outback 2.5i 2.5L Engine VIN: 4S4BP61C78 We isolated the noise near the flex plate. We could not verify anything wrong but we knew it had to be something near there. I was able to dublicate the noise whilt turning the engine over by hand. It was faint but it was there. I marked the flexplate when it ...	9
	2005 Volkswagen Passat GLS 1.8L Mechanical VIN: WVWCD63BX5 everyone was right. it was the right front axle. dealer part not aftermarket	10
	2004 Volvo V40 LSE 1.9L MIL Lamp on VIN: YV1VW275X4 Thanks to all that replied. The cam solenoid & cam gear were replaced as I said & the customer went through emissions. Several months later the code came back. I am waiting for vehicle to return so I can check oil pressure. Oil has been changed regularly with ... Trouble codes: P0015 (Cam shaft position), ECM60, ECM61.	7

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