Automotive Technicians Technical Discussion and Fixes for Aug 12, 2014

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	Help Request	Answers
	2002 Audi A4 Quattro 3.0L Poor Idle Quality VIN: WAULT58E82 Hello Everyone. This car came in with a check engine light. All three cylinders in bank 1 are misfiring. We looked at group 15 on the VAS 5052a and saw all three cylinders miss firing in bank 1 at idle. We looked at group 16 and there are no missfires in bank ... Trouble codes: PP030, P0301 (miss fire cylinder 1), P0302 (miss fir Cylinder 2), P0303 (miss fir cylinder 3), 16805 (Bank 1 warm up cat), 18010 (power supply voltage)	View
	2002 BMW 525i 2.5L Oil seperator VIN: WBADT43482 I have this BMW that is sucking a lot of vacuum through the hose that goes to the front of the valve cover. I believe this goes to the oil separator??? DOES ANYONE HAVE A TRICK TO REPLACING THESE??? Also, how do I reset the memory when repair is finished??? We...	View
	2007 BMW 328xi 3.0L Mechanical I Replaced the engine in this BMW 6 weeks ago due to the front crankshaft pulley center bolt loosening, this resulted throwing off of the serpentine belt, and more importantly, loss of cam timing. I removed valve cover, set up AST timing tool, re-set engine ti...	View
	1999 Buick Park Avenue 3.8L compressor VIN: 1G4CW52K8X hello techs. i just put an ac compressor and acumulator orifice tube in this car the old compresor was leaking,but still working.now with one pound of fre-on in the compressor,it wont come on and the security light is on ,and the traction light,air bag light ,...	View
	2002 Buick Rendezvous CX 3.4L temp guage VIN: 3G5DA03E22 Thank in advance for you help. When this car idles without the ac on the temperature guage will go up to 2/3. Customer said that the guage never went above 1/2 before. I have block tested this engine several time because I know they have head gasket problems. ...	View
	2005 Cadillac SRX 4.6L oil pressure VIN: 1GYEE63A05 Hello everyone, need some help. I purchased this Cadillac when we were slow knowing we were needing to repair a dropped valve seat and that's all the history I have on the vehicle. Repaired cylinder head and installed all new timing chains and guides. Vehicle ...	View
	2007 Cadillac Escalade 6.2L No Start, Stall VIN: 1GYFK63807 no codes all sensors seemed O K durring problem. Towed back to shop and vehicle started of course. We did notice a max of 6 psi oil pressure hot at crank speed and very weak noid light. after cool down crank speed oil 47 psi at crank speed. Possible crank angl...	View
	1999 Chevrolet Silverado 1500 4.8L Mechanical VIN: 2GCEK19V4X Got another GM K series truck that needs to have all the brake lines replaced. I normally fabricate the lines with Surrauto brake line and fittings. I will spend the better part of a day completing the repair. Anyone used the line kits that are now available? ...	View
	2006 Chevrolet Cobalt SS 2.4L Ignition VIN: 1G1AM18B56 Battling with this 2006 Cobalt SS. Customer came in a few months back with complaint of intermittent no-crank. After starting it numerous times, we did get the event to occur once. When the event occurred, there was no power at the purple starter trigger wire ...	View
	2007 Chevrolet Silverado 1500 LTZ 6.0L oil pressure VIN: 2GCFK13Y17 low oil pressure will not go over 44psi it will drop to 38psi at 5500rpm	View
	2008 Chevrolet Suburban 2500 LT 6.0L MIL Lamp on, limp mode VIN: 3GNGK26K98 Thanks in advance for any help with this. I'm this posting for my Technician and can supply additional information if requested. This vehicle is one of our News trucks that we service and there is no prior history regarding this problem. This vehicle was towed... Trouble codes: P0700 (Transmission control Module), U0121 (lost communication with abs system), P0575 (cruse control switch signal circuit), U0102 (lost communication with Transfer case control module), U0100 (lost communication with ECM/PCM), U0140 (Lost communication with Body Control System Erratic)	View
	2007 Dodge Caliber SXT 2.0L Driveability VIN: 1B3HB48B17 Ok, this is my daughters car. Getting ready to head off to college. She has owned this car for about 4 months. In that time i have replaced ALL of the suspension components.When she first started driving the car all was well, then one day on take off she could...	View
	1984 Ford F-150 XL 5.8L Hesitation, Cuts out, Stall VIN: 1FTEF14H2E Hi Evevry body and thanks in advance. first of all I dont have much experiance in carburetos systems, anyway this truck when you put it in gear and press the gas will bugg down and dies, we did a tune-up, then took it to a test drive and it did fine that was y...	View
	1994 Ford F-250 XL 7.5L Excessive Emissions VIN: 1FTHX26G4R vehicle is failing smog test due to high nox levels With scanner hooked up and viewing pids egr solenoid is commanded on only under a very hard accell and not commanded on while under light load also noticed vehicle seems to go in and out of closed loop at 200...	View
	1997 Ford F-250 XL 7.3L Mechanical VIN: 1FTHX25F2V Hi guys, Im not a Ford diesel tech so Im completely at a loss here. When cold the truck starts fine, but when it gets to WOT, if you switch engine off the truck will not start until it cools down. Opened and cleaned IPR, there was heavy gunk inside, replaced o...	View
	2006 Ford F-250 Super Duty XLT 6.0L No Start VIN: 1FTSW21P76 I Have fixed many 6.0s but this one has me stumped. truck will start cold and run all day. BUT if you tow or get it real hot just foot to the floor driving it will not restart hot. first thing I done was pressure check high pressure oil system. I replaced inje... Trouble codes: P2290 (Icp too low)	View
	2008 Ford F-250 Super Duty XLT 5.4L Mechanical VIN: 1FTSX21508 Vehicle came in with bad misfire-Ford dealer in New Mexico diagnosed as bad VCT Solenoids & Cam Phasers-actually #2 exhaust valve rocker came off & damaged cam\valve etc so it needs a right side head-my question is shop manual step 1 is to remove the engine bu...	View
	2004 GMC Envoy SLE 4.2L MIL Lamp on VIN: 1GKDT13S74 thanks for any help - this envoy came in with po171 lean condition - & air pump codes - replace siezed air pump & divertor valve on side of block,replaced spark plugs due to milage . smoke tested intake system hot & cold - found no leaks - disconnected brake b... Trouble codes: P0171	View
	2003 Honda Accord EX 3.0L Lighting VIN: 1HGCM66503 The car runs and drives start normal on the dash the DRL light blinks when the lights flash and the Red Circle flashes near the right lower corner of the IC. We had some codes for the CAN B1150, B1155, B1156, B1157, B1158, B1159, B1160 Clearing them they ha...	View
	2001 Isuzu Trooper Limited 3.5L Converter VIN: JACDJ58X31 Replaced pump with reman on dyno transmission has great lu pressure cold after it gets hot lu pressure drops too zero on pressure gauge in lockup.i know these are notorious for low pressure in lockup am i comparing apples to oranges between vehicle and dyno wh...	View
	2000 Jeep Grand Cherokee Laredo 4.0L No Start VIN: 1J4G248S7Y I've got a problem vehicle here. It's mostly a problem because I wasn't the one to originally work on it and I have no idea what happened to it before it got here. Customer said vehicle was sitting for 2 years, he tried to put a battery in it, hooked it up b...	View
	2006 Jeep Liberty Sport 3.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4GL48KX6 this car came in with a lack of power and and idle problem,we did a smoke test,a compression test,fuel pressure check,a crank and cam signal sync check,a coil switch cyl #1 and 2,found nothing conclusive,we then remove the fuel rail and drain and inspect the f... Trouble codes: P0300	View
	2007 Kia Sportage LX 2.7L MIL Lamp on VIN: KNDJE72317 thankyou for any help. Car came in with a po420 code so I replaced the bank 1 cat and both o2 sensors. car came back with a p0139 o2 sensor b1s2 slow response so I replaced the downstream o2 again the sensor has full range 0 to 1 volt and hangs steady at aroun... Trouble codes: P0139	View
	2004 Lexus GX470 4.7L nav, pw, vst trac lights VIN: JTJBT20X84 vehicle has come in with blown ecm b2 fuse numerous times. in shop amp draw is only 1.6 amps. it has gone 4 monthes without blowing. but has blown twice in one day. cust has not noticed using anything when fuse blows.	View
	2010 Lexus RX350 3.5L Codes dont clear VIN: JTJZK1BA8A Vehicle arrived at shop with obvious misfire and MIL on. Retrieved the listed codes. Live data showed misfire for #6 only. Visual inspection found rodent damage to cyl #6 coil wires. Three of four wires severed with copper showing. No other wiring damage found... Trouble codes: P0020 (Camshaft timing control b2 intake), P0343 (Camshaft position sensor a), P0352 (Ignition coil 2), P0356 (Ignition coil 6)	View
	2005 Mazda RX-8 1.3L no start VIN: JM1FE17N55 car came into us with water pouring out of radiator. bottom of radiator was busted out and engine was sezed up. replaced engine with new engine. now here the problem. when car is cold it starts right up. when car is hott like if u drive to store and come out i...	View
	1986 Mercedes-Benz 190E 2.3-16 2.3L Air Condit VIN: WDBDA34D8G We have no A/C compresor engagement and found that the ground side of the presure sensor is not available, we have removed most of the area surounding the HVAC controler but have not been able to figure out how to remove the control head for testing of the var...	View
	2005 Nissan Xterra Off-Road 4.0L a/f sensor VIN: 5N1AN08W55 vehical came in with code p0430 ( cat bank 2 ) so we checked for air leaks ect and then replaced the cat with direct fit bolt up. returened to customer then he brought it back a coulpe of days later with code p1283 a/f sensor bank 2 so we replaced it. now we a...	View
	2005 Nissan Murano S 3.5L nav,radio.temp controls VIN: JN8AZ08W75 ok the entire navagation, temperature controls and radio system are dead...nothing. Fuses were checked and are good. Maybe this is something for the dealer unless somebody has run across this as a common issue. The only thing I can think is the unified meter a...	View
	1999 Porsche Boxster 2.5L Hesitation, MIL Lamp on, Slow to respond VIN: WP0CA2987X I have a 99 boxter 2.5 auto. Im getting the following codes permanently stored in the ecu. By permanent I mean will return asap as soon as engine is turned on. p0341 cam sensor bank 1 short to b+ p1397 cam sensor bank 2 short to ground Both sensors are new i... Trouble codes: P0341, P1397	View
	2002 Saab 9-5 Aero 2.3L Electronic VIN: YS3EH45G22 This a dual situation with the A/C system, at times we have all A/C systems working, but other times we have no interior fan but the compressor working, we have faults as follows 08 01 11 13 07 the other issue is that sometime when the compressor clutch is eng...	View
	2005 Toyota Corolla CE 1.8L Poor Idle Quality, MIL Lamp on VIN: 2T1BR32E15 hi everybody car came in with check engine on and no response from the throttle there was a code p2103 (throttle actuator circuit high)I did check the resistance on terminal 1-2 and there was no continuity so I replace the throttle body assembly with a used on... Trouble codes: P2103	View
	2005 Volkswagen Touareg 3.2L front diff bearing VIN: WVGLG77L65 have removed front diff and found metal debris in oil,i am trying to find rebuilding specs have found bearing part # carrier pin seems maybe held in with roll pin cannot find rear exit hole, special tool?? ,procedure ??any help would be great thanks	View
	2005 Volkswagen Passat GL TDI 2.0L No Start VIN: WVWAE63B55 Head gasket was done along with having it surfaced at ran good after this repair. Came back on hook about 2 months later and acted like it had run out of fuel. Long crank time then started ran good and started all day no problem. Check fuel out filter got 11 p...	View
	2007 Volvo S40 2.4i 2.4L oil consumption VIN: YV1MS39047 Hello Volvo Techs and others. I have a 2007 Volvo S40 non Turbo, The Head Gasket was replaced in the beginning of 2014 due to gasket leaking on timing belt side. Repair went off with out any trouble. Customer was involved in front end collision and states 2 m...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2001 Audi A8 Quattro L 4.2L Reverse drum VIN: WAUML54D71 I found a transmission shop that could rebuild the trans for a reasonable price and will send it out. Thanks to those who to time to respond. Steve	3
	2006 Audi A4 2.0L MIL Lamp on VIN: WAUAF78E26 Customer has been out of town with the car and iatn wants this closed, I will report fix when it occurs Trouble codes: 01255, P0089.	6
	2006 Audi A4 Quattro 3.2L 3-4 gear VIN: WAUDG74F96 The vehicle needed a new transmission. Checked trans oil and found a substantial amount of metal shavings. Trouble codes: P0783, P0068, P307A.	5
	2001 Cadillac DeVille 4.6L No Start VIN: 1G6KD54YX1 Thanks a million to all that replied. After reading your posts I started from scratch and what I found was a aftermarket alarm system. For some reason I couldn't remember a GM car making 10 horn beeps so back at the battery I found a large amount of wiring not... Trouble codes: P0300, P0335, P0340, P0385, P0410.	6
	1998 Chevrolet K3500 Cheyenne 6.5L Forward gear VIN: 1GCHK34FXW Thank you for the insight everyone. We are going to order a remanufactured transmission with a warranty and see how that goes.	8
	2003 Chevrolet Silverado 1500 4.3L abs VIN: 1GCEK14XX3 A LOT OF YOU WERE RIGHT. I REMOVED THE CHINESE FRONT HUB ASSY.AND REPLACED THEM WITH PREMIUM US BILT BEARINGS AND REPAIRED THE ABS PROBLEM. I WON'T BUY CHINESE BEARINGS AGAIN AND WILL CHECK ALL OTHER ITEM. THANK YOU ALL. CHARLES	23
	2007 Dodge Sprinter 2500 3.0L Excessive Emissions, Hesitation, Surge, MIL Lamp on, no power buck VIN: WD0PE845X7 thanks for the responses. i eneded up recalibrating the injector quantaty adjustment and that repaired it Trouble codes: 2359 (charge air pressure control too low).	6
	1999 Ford Ranger XL 3.0L Excessive Emissions, No Start, Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1FTZR15V8X well we keep working on this in our free time and we were real concerned about the timing I thought I would check the balancer one more time it was new I grabbed the balancer from under the truck and it moved it did not have the washer on it and it had wore a... Trouble codes: P1761.	11
	2001 Ford F-350 Super Duty Lariat 7.3L No Start, Stall VIN: 1FTSW31F41 Thank you guys for the great help with this one. It turned out to be the O-rings. It starts and runs great. Owner was happy with everything including the price. I got some great info from the replies and it gave me great info for the future.	10
	2005 Ford F-150 King Ranch 5.4L options work VIN: 1FTPW12575 Thanks to all who replied, power and grounds to the PCM were all fine and vref signals were all good. for some reason we had no ground signal from the PCM to the starter,and PCM relays so we replaced the computer, downloaded the program and the truck started u...	4
	2005 Ford F-250 Super Duty XL 5.4L cap VIN: 1FTSF20P65 Need to close this post. Appreciate the messages sent. Has new chains, guides, tensioners, phasers, oil pump, pickup tube, control solenoids, oil filter, 5w20 oil and then 10w30 oil and cam position sensors. Cam bearing good. All Ford parts. Oil pressure 50-60...	11
	2006 Ford Five Hundred Limited 3.0L abs VIN: 1FAHP28116 Turns out it was a bad rear differential pump & sensor. Not sure how all this ties into the RSS, heated seats etc, but after the rear diff pump and sensor were replaced, all the other stuff started working also. Thanks everyone for all your time and tips. See ...	3
	2013 GMC Terrain SLT 2.4L 5-6 shift VIN: 2GKALMEK90 The serious replies I recieved suggested taking the vehicle out with a scan tool to see what is going on. Customer raised a big stink with dealer since they failed to fix it on multiple visits so they bought it back. I still haven't found out where the shift...	11
	2008 Kia Sorento EX 3.8L Pedal VIN: KNDJD73638 I decided to send this one back to Kia because we did not have a scan tool that would work to bleed the system. We installed the original master cylinder and sent them on there way. As many of you suggested the problem was an air trapped in the system. Kia ble...	7
	1993 Mercedes-Benz 190E 2.3 2.3L Unknown VIN: WDBDA28D5P thanx for all the replies. this one was very confusing. although i pinched off both hoses with pinch off pliers. it still blew hot. after blocking the one heater hose near the aux heater pump the unwanted heat went away and the ac blew really cold!!! thanx a...	7
	1999 Mercedes-Benz E300 3.0L dash lights/tag lights VIN: WDBJF25H7X thanks for the help. I received several replies mentioning potential trunk wiring issues at the hinge, faulty headlight switch and possible wiring error on my part during evaporator replacement. we ended up finding a faulty switch that would only short on th...	7
	2000 Mercury Mountaineer 5.0L Stall VIN: 4M2ZU86PXY Well customer didn't want to spend anymore money and the boss was done donating time so this one left still acting up. Too answer some of the replies I did install a Motorcraft iac the first time. Also I scoped the cam,crank,tps,iac. Tune up parts were replace...	14
	2005 Mitsubishi Lancer ES 2.0L power window VIN: JA3AJ26E55 thank you for all the replies, very helpfull and yes the master window switch was shorted to ground, I replaced it and all windows work just as new,,, thank you team of advisors.	4
	2005 Nissan 350Z 35th Anniversary Edition 3.5L engine ping VIN: JN1AZ34D65 Sorry for the long delay in my closing post. I wanted to wait and hear back from the customer. We still have not heard back. I want to thank all of you that helped me. You had very helpful information on possible carbon issues or its just the nature of that pa...	11
	2011 Nissan Titan PRO-4X 5.6L shifter VIN: 1N6AA0EJ7B Thanks for the direction guys, I was on vacation and someone was stuck on this problem... Cringed when I saw it posted, not rocket science... Nissan apparently sells whole shifter with solenoid on it, not separately.. At any rate, quick r/r, still wasn't done ...	4
	1993 Plymouth Grand Voyager SE 3.3L Poor Idle Quality, Hesitation, Stall, Screwy Shifting VIN: 1P4GH44R1P This is truly fixed. I had found that the harness that went over wiper motor had rubbed through a B+ wire. A big grey one. Through heat and sparking, it had burned a small hole into the Orange/blue wire for the TPS feed to the EATX module. And I found that b... Trouble codes: 24 (TPS Voltage High).	5
	2004 Pontiac Grand Am GT 3.4L valve train VIN: 1G2NW12E14 All replies missed the mark. It is the camshaft and lifters. Specifically, the number 2 intake lobe is going flat. It was very badly pitted causing float off idle. The fix will be to replace the cam and lifters. I am waiting for customer approval. Thanks for a...	17
	1993 Subaru Legacy L 2.2L Cuts out VIN: 4S3BJ6337P One reply said they were loosing compression, I determined this was the cause of the problem on another test drive, engine looses compression after going up a [...] hill, crank to restart and has no compression, gains some cylinders after 20-30 seconds and clea...	13
	2003 Subaru Impreza WRX 2.0L drivetrain VIN: JF1GD29683 CUSTOMER OPTED TO WAIT AND REMOVE TRANS THIS WINTER AND HAVE A FULL REBUILD DONE.	5
	2000 Toyota Tundra SR5 4.7L No Start VIN: 5TBBT4416Y I am closing this request with a summary because I am not sure it is fixed. Since the request was opened the vehicle has not acted up. It did have a aftermarket alarm system which we chose to remove. I would give it a 50/50 chance of being fixed. If it acts up...	7
	2008 Volkswagen Passat Komfort 2.0L A/C Blower circuit VIN: WVWAK73C48 I pulled the blower motor and inspected it. Shaft seem tight. Checked amperage pull with remote battery and starts out pulling 42.1 amps and levels off to about 20 amps. Put fuse back in s39 40 amp. And stared engine. Manual AC system. Fuse does not blow w...	5

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