Automotive Technicians Technical Discussion and Fixes for May 24, 2013

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	Help Request	Answers
	2005 Audi A4 Quattro Cabriolet 3.0L Misfire, MIL Lamp on VIN: WAUET48H15 I have an audi a4 that came to me after audi diagnosed as a catalyst problem. fast forward bank 1 catalyst installed same problem. will not miss at idle.driving down highway cel flashes until u hit a steady speed then goes out. snap on verus expert mode says 1... Trouble codes: P0301, P0302, P0303	View
	1999 BMW 540i 4.4L Speedo Fuel Gauge VIN: WBADN5337X So i have this bmw with a gauge issue. The speedometer does not work and the fuel gauge does not work. I did test number two for the dash cluster and the speedo needle does sweep like it should. The fuel gauge only moves to the 1/8 th mark during this test. No...	View
	2007 BMW M5 5.0L oil level sensor VIN: WBSNB93537 We installed a used replacement engine after an engine failure. After filling the engine with the correct quantity of oil, and running the engine, we have an engine oil overfilled message. We replaced the oil level sensor with a new OEM part due to the unknown...	View
	2008 Buick Enclave CXL 3.6L Power Steering VIN: 5GAEV23718 I inherited this job from another shop. I am told the original problem was no power assist. This vehicle is equipped with variable assist power steering. The previous shop replace the pump and installed a used upper column. When it came to me there was no powe...	View
	1995 Chevrolet Lumina LS 3.1L engine, idle VIN: 2G1WN52M1S Hi. Big problem. Vehicule runs for 2-3 minutes, starts a rough idle, and then stalls. fuel pressure 40 psi, raise to 45 when rough idle, seems like no injector pulse. Unable to retreive dtcs. OBD connector with 2 pins. Jumped 2 pins and no flash from engine li...	View
	2004 Chevrolet Silverado 1500 4.3L No Start VIN: 1GCEC19X44 vechile has 60psi fuel pressure,new wires,cap,rotor,plugs.will not start unless you spray ether in tbody,after vechile will start all day.if you put plug gap to .40gap vechile will start but runs badly.set plugs back to .60gap now no start.im suspecting clogge...	View
	2006 Chevrolet Silverado 3500 LT 6.6L MIL Lamp on VIN: 1GCJK33D36 Hi guys I am having some trouble with this truck. What happened after doing headgaskets and the customer took for two weeks he called and said the check engine light came on and the engine was shaking badly. When the truck was towed in the truck ran fine and h... Trouble codes: P0205 (Cylinder 5 injector circuit malfunction)	View
	2007 Chevrolet Tahoe LTZ 5.3L Misfire, MIL Lamp on VIN: 1GNFK13007 Hi all, This one has me scratching my head a bit. Car came in with the dash lit up and a p0300 stored. Data showed number 2 cyl counting up at idle only. Swapped plugs and coil and miss stayed with 2. Fuel pressure is good Injectors ohm out ok and flow iden... Trouble codes: P0300 (Random cylinder misfire)	View
	2009 Chevrolet Malibu LT 2.4L Seals VIN: 1G1ZH57B79 Water leaking from drain tubes on sun roof ,problem located but drain tube must have shrunk,i cant pull it up into the gromment of the rain gutter	View
	2009 Chevrolet HHR LT 2.2L MIL Lamp on VIN: 3GNCA23B59 this started out as a engine and trans job because dealer said it needed them and wanted us to change them which we did he supplied motor and trans not knowing what the problem was originally but he came back a week later with a SES on and p0171 and he said th... Trouble codes: P0171 (Lean b1)	View
	2003 Dodge Grand Caravan Sport 3.3L Speedometer VIN: 2D4GP44333 Customer complaint was that speedometer would intermittantly spike on startup and van would run rough.I found a Tranny output speed sensor code set.I noticed that when I shifted from reverse to drive the speedometer would jump slightly and vehicle speed on the...	View
	2007 Dodge Charger 2.7L o2 sensor VIN: 2B3KA43R87 i have a 2007 dodge charger keeps setting o2 bank 2/1 slow response. has a new factory o2 sensor. every thing looks good at idle but put in gear and load it up and o2 reads rich but the computer does not try to compensate with the fuel trim. repaired exhaust l...	View
	1995 Ford F-350 XLT 7.3L No Start VIN: 1FTJX35F35 Hello to all, we have something i am just not seeing here. To start this nightmare began with hard start and loss of power then no start. When truck would not start the icp was below 200 psi, during testing i found that the ipr command was at 50% but no signal...	View
	1997 Ford F-150 4.2L intake VIN: 1FTDF1724V so the car has this code p1537 (IMRC stuck open B1), i took the intake off and found the runners open , the plastic piece that hold the lever is good. so should i just replace the actuator or is there something i can test to make sure .. car had no driving pro...	View
	2000 Ford E-350 Econoline 5.4L No Start, Poor Idle Quality, Misfire VIN: 1FDWE35LXY Vehicle will not start will just crank and sputter for a second it will run barely on starting fluid. I Thought maybe i had the timing wrong so i reset it and still same problem. Changed fuelpump and filter truck had been sitting for three years apart Trouble codes: P0320, P0340	View
	2003 Ford Windstar SE 3.8L Speedometer VIN: 2FMZA52483 I was wondering how this system works. I see wires according to 2 different wiring diagrams going from the OSS, which I assume is what tells how fast the vehicle is going, to the transmission control module. Then it must go across the data bus to the Ecm, Inst...	View
	2005 Ford F-350 Super Duty King Ranch 6.0L Hpop VIN: 1FTWW32P55 For you 6.0 guys: First of all thank you for taking the time to take a look. This vehicle just came from a fleet service department. According to them and I do tend to believe them this vehicle has had to be gone into twice for HPOP STC fitting problems. All i...	View
	2009 Ford F-150 STX 4.6L Poor Idle Quality, Limp mode VIN: 1FTRX12W49 Got the ticket and it reads: No throttle Ck engine light is on Just installed radio I started it up. The engine idles terrible. Runs as if it has a very bad vacuum leak. There is no throttle response at all. After idling into the shop, I checked codes. Got co... Trouble codes: P060A, U0300 (Internal Control Module Software Incompatibility)	View
	2003 GMC Envoy XL SLT 4.2L Starting VIN: 1GKET16S93 Hello again. Very intermittent no crank problem on this GMC Envoy. Code U1000 and Body code B2960 "key code incorrect but valid". Closely inspected Pass key voltage and replaced igntion switch approx 5 months back with genuine GM replacement in hope of corre...	View
	2007 GMC Savana 3500 6.0L No Start, Stall VIN: 1GTHG35U67 Hi Folks, I don't ask for help much but this one has me going nuts. truck came in with a stalls but restarts complaint. Go out to check the truck and its a no start. PERFECT!! Plug my scanner in "no comm". Has MIL light. all of a sudden some lights on the dash...	View
	2008 GMC Sierra 2500 HD WT 6.0L ABS light VIN: 1GTHC24K28 Hello, I have here a truck with DTC p0055 rear wheel speed sensor malfunction. There are no sensors on the rear wheels. Does the ABS control unit use the transmission sensor? The speedometer works fine. I have no Mitchell or Alldata in this shop. I don't know ...	View
	2011 GMC Sierra 3500 HD SLE 6.0L Data Bus VIN: 1GT423CG6B This 2011 Sierra came in as a no-start, it will not crank. I have no communication with any of the modules on the low speed bus (dark green wire). All of the high speed modules communicate, including the BCM, which as I understand is on both networks. There ...	View
	2008 Hummer H3 3.7L crank no start VIN: 5GTDN13968 hello everyone vehicle towed in crank-no start.secutity light was flashing so we performed relearn.vehicle started. we retried starting the next day-crank no start.checked signals at ign switch and bcm-all within spec's.performed relearn again and it starts ag...	View
	1999 Lexus GS300 3.0L engine VIN: JT8BD68S1X I am working on a 1999 Lexus es300. The rear main oil seal is leaking. We removed transmission and replace seal, re-installed transmission. We observed car on vehicle lift for two hours, engine running in neutral and engine off. No leaks. Started car put into ...	View
	2007 Mazda CX-7 Grand Touring 2.3L compressor VIN: JH3ER29317 thanks for your help. This Mazda has me a little stumped. 3months ago this SUV came in with the a/c comp blown up belt broken and the crank pulley broken. another tech in the shop did the work and all was good now it is back not cooling at idle. The system has...	View
	2008 Subaru Legacy 2.5i 2.5L Ecm VIN: 4S4BP60C28 New Egi, no spark. does the immobilizer system need to be "paired" with the new ECM/Egi? there is a security light constantly on when the key is on. I hear the fuel pump running. the new ecm is brand new from subaru.. We are making a call to them to find ou...	View
	2003 Suzuki Aerio SX 2.0L No Start VIN: JS2RC41H63 Could use some help on a suzuki.Vehicle towed in for no start.Computer had codes 340 and 610.Cleared codes and tried to start.340 resets while cranking.Checked for spark,none,checked for injector pulse,one blink when first start cranking,then none.Followed cha... Trouble codes: P0340 (CMP position circuit), P0601	View
	2005 Volkswagen Jetta GLI 1.8L Traction Control VIN: 3VWSE69M75 Hi everyone, and thanks in advance for your help. We are a used car dealer/repair shop that has specialized in Volvo and SAAB for many years, and have recently started branching out into other European cars. We have this '05 VW Jetta GLI (9M2) that we bought ...	View
	2005 Volkswagen Passat GLS 1.8L engine VIN: WVWBD63B15 Ok guys could use a little guidance here before I tear the head back off. This car had been a problem child of mine for awhile now. Long story short, timing let go and wiped out the head, replaced with new head, new MLS gasket etc. After repair had low oil pre...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2006 Audi A8 Quattro 4.2L dash display VIN: WAULL44E46 I did order a new video cassette from Audi. After further examination I decided not to do the job. Told the customer we may damage the wood trim. He was Ok with my answer and decided to take the car to Audi. Sometimes you need to know when to say when. T...	3
	1999 BMW 540i 4.4L Mechanical VIN: WBADN6341X to qoute Gomer Pyle "surprise, surprise, surprise" i did not know that the pcv plate i had recieved was aftermarket, replaced with OEM and all is well. thanks to all that replied, i did not know that plate was not a dealer item, found it out after i called my ...	4
	1978 Chevrolet K10 Cheyenne 5.7L Cuts out, Stall VIN: CCZ1481165 I fixed it. Went out with my meter and checked wiring to the alternator as was stated. I found the sense wire shorted to ground who knows were. installed a new sense voltage added a small light bulb (4.6)watt to simulate the "charge" light and fired the truck....	45
	1998 Chevrolet K1500 Suburban 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GNFK16R1W We proved that it has a vacuum leak in the inside of intake manifold. Customer declined repair because he couldn't afford repairs. Thank you all for your help. IATN is still the best. Trouble codes: P0102, P0300, P0404, P0405, P0463, P1404.	18
	2003 Chevrolet Silverado 3500 6.6L fuel in crankcase VIN: 1GCJK39133 Thank you all for your help on this truck. I replaced all the injectors as well as the 2 return lines. Truck has been gone for a week now with no fuel in the crankcase! Trouble codes: P0522, P1093, P1094.	14
	2006 Chevrolet Equinox LT 3.4L No Start VIN: 2CNDL73F96 Thank you everyone for the help on this car. Even thou I had 12v at the fuse I found some corrosion under it. So I pulled it apart and found that the circuit board was shot. Put a new one in and fixed the problem.	10
	2006 Chevrolet HHR LT 2.2L Steering VIN: 3GNDA23D96 well car is going to Chevy so it is out of my hair. Come to find out it is a used car from a dealer and there has been some things done that may cause a lot more problems so off to the dealer it goes . Thanks for the replies.	4
	2006 Chevrolet Trailblazer LT 4.2L rear ac blower VIN: 1GNES16S76 Well it is fixed. My new snap on solus ultra scanner I just bought 2 months ago does not have software to access the rear ac. Since I could not find it I assumed it was not there after looking in every single module listed for codes and data. After reviewing r...	3
	2006 Chevrolet Colorado LT 2.8L Timing Chain Tensioner VIN: 1GCCS14816 I had mixed responses. Some said just do tensioner, some said do the whole timing kit. I decided to replace the chain, guides, tensioner and tensioner shoe. The deciding factor is how far out the tensioner has to go to tighten the chain. Obviously the more...	5
	2006 Chevrolet Silverado 3500 LT 6.6L Unknown VIN: 1GCJK33D36 Thanks Guys for all the help. All I had to do is jump the low side pressure switch to get the compressor to run and once it was full it would run as normal. Thanks again.	12
	2008 Chrysler Town & Country LX 3.3L Hesitation, Surge, Misfire VIN: 2A8HR44H48 Well this Chrysler product is a fix! Bulletin: The original bulletin has been revised to bulletin 18-040-10. We did try the shim and it made it harder to start, the flex plate was taken out and replaced but had no affect on our problem. The cam and crank w... Trouble codes: P0339 (Crankshaft Position Sensor Intermittent), P1128 (Closed loop Fueling Not Achieved Bank1), P0300 (Random Misfire).	22
	1987 Dodge Aries 2.5L Poor Idle Quality VIN: 1B3BD36K0H Thanks for all the input on this old Dodge.When I had the idle control valve out to check it,I manually moved the pintle to where the car would idle ok.I thought we would be getting car back in at a later time for further testing but customer has been driving... Trouble codes: 25 (Automatic Idle speed circuit).	8
	1996 Ford Explorer Eddie Bauer 4.0L compressor VIN: 1FMDU32X0T THANK YOU ALL FOR THE GREAT HELPFUL HINTS WHICH DID HELP ME FIX THE ISSUE.I OPENED UP THE SYSTEM FOUND DEBREE ON THE NEW ORIFICE TUBE.ALSO FOUND THE HIGH SIDE DISCHARGE FLEX HOSE CONNECTED FROM THE ORIFICE TUBE TO THE CONDENSER IT HAD COLLAPSED INSIDE AND HAD ...	14
	2000 Ford F-250 Super Duty Lariat 7.3L banging VIN: 1FTNX20F4Y thanks to all the great techs here. i was suspectng air in the fuel system aswell. pulled the fuel filter and noticed the fuel had lots of bubbles in it after shut down. changed the fuel filter and gasket. FIX!! THANKS AGAIN for the input.	5
	2002 Ford Ranger XL 2.3L Temp guage VIN: 1FTYR10D22 Sadly this rig is not fixed. The customer has not returned for further testing. I thought my post read pretty clearly as far as the OE temp sensor and the 4,000 ohms it and the original one had at room temp. While the guage operates on a 18-300 ohm range wh...	11
	2006 Ford Mustang GT 4.6L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 1ZVHT82H66 After forcing testing the O2 sensors to make sure the Pid values were showing correct voltages i closed all possible was for fuel to enter the combustion chamber except for the injectors and found no change. i removed and metered a vacuum leak in order to get ... Trouble codes: P2198 (p2196-), P2196 (testing and results).	20
	2004 GMC Yukon SLE 4.8L Poor Idle Quality, Surge, Misfire VIN: 1GKEK13V74 I did everything imaginable and possible and finally decided to take to the Dealer. They did a computer update, 6 updates available for this vehicle. Runs a whole lot better but still has a slight miss occasionally due to a aftermarket or worn cam according ... Trouble codes: P0300 (Multiple misfire code).	13
	1988 Jaguar XJS 5.3L Alternator VIN: SAJNV5848J I checked the physical condition of the alternator and it looked like the original one so I did a ripple test and it came out pretty high. The contacts were kind of blue and corroded but I don't think it was the cause of the undercharge. I found a local rebu...	9
	2004 Kia Amanti 3.5L Stall VIN: KNAL012414 Customer Did not want to spend money to investigate any more. returned vehicle to owner Trouble codes: P0110, P1196, P1172.	3
	1998 Lincoln Town Car 4.6L Oil Pressure Light VIN: 1LNFM81W5W WELL AFTER TIRELESSLY TRYING TO EXPLAIN TO THE CUSTOMER...AND MY BOSS... WHY THESE SWITCHES WERE NOT WORKING I DID MY OWN EXPERIMENT. WITH THE OLD (O.E.) SWITCH THE CIRCUIT IS OPEN WITH NO PRESSURE, WITH ALL THESE NEW SWITCHES THE CIRCUIT IS CLOSED WITH NO PRE...	5
	2005 Lincoln Navigator 5.4L Hesitation VIN: 5LMFU28535 I really appreciate the two replies. Also hope this helps someone in the future. It has a 4 wire connecter. Red Yellow is battery voltage through fuse 32. Black white is ground. Blue yellow is from pin 50 of the PCM and I can't think of the color of the signal... Trouble codes: P2006 (IMRC stuck closed).	2
	2001 Mercedes-Benz S430 4.3L No Start VIN: WDB1070471 Thanks again for all whoe replied. Another crank sensor failure. Continuity through new sensor was only 750 ohms vs the almost infinite resistance of the original. What made it somewhat a problem is lack of info/specs and it did actually generate a small AC...	8
	2002 Mercedes-Benz CLK430 4.3L ABS/BAS/ESP warnings VIN: WDBLK70G82 I DO NOT KNOW WHY COMPONENT TESTING FAILED ME ON THIS!!! It's possible I was looking at the wrong relay assignment on the front SAM, but I was under the impression that the black relay at the back was for the wipers. It was only while testing point to point ...	5
	2007 Mercedes-Benz GL450 4.6L Mechanical VIN: 4JGBF71E87 I want to thank the group. We are still doing testing on the vehicle. Timing is spot on. The only thing i did not do is to reset the adaption, It is extremely important on these car after the sprocket job is perform. We have take the plates so many times t...	5
	1942 Pontiac Streamliner 4.1L Fuel Pump VIN: THERE1SN21 Well it's out and back in it just took some patience and muscle but it poped out and the new one went right it car is finally running maybe we will get to drive her some this summer, just need to find a pinion seal for her. Thank you everyone for the helpful a...	11
	2001 Saturn SC1 1.9L Monitors VIN: 1G8ZP12811 THANKS TO ALL THAT RESPONDED TO MY PROBLEM.REALIZING THAT THE EVAP SYSTEM WOULD TAKE LONGER TO SET "OK",I DECIDED TO FOCUS ON THE SECONDARY AIR INJECTION SYSTEM SO THAT I COULD GET THE CUSTOMER HIS STICKER.I STARTED BY TESTING EACH COMPONENT INDEPENDENTLY.IT W...	7
	2007 Subaru Outback 2.5i Limited 2.5L MIL Lamp on Ok I got good replies on this and it is pretty simple. If an ecu has to be replaced, make sure its new, and with all key in hand the ecu has to be programed with the code that matches the BIU. If the BIU is replaced you must replace the keys also, but you do... Trouble codes: P0076.	5
	2006 Toyota Sienna LE 3.3L 2-3 Shift VIN: 5TDZA23C46 we removed the solenoid valve assembly, and found one of the orifices stuck open by some residue from the transmision oil. we cleaned everything , reassembled with new filter and new oil T'4, and that fixed the problem. thanks for responding to my help re...	4
	2004 Volkswagen Touareg V8 4.2L MIL Lamp on VIN: WVGCM67L74 Replaced cam position sensor on both sides code p0340 gone Thanks for the help Trouble codes: P0340.	5
	1997 Volvo 850 GLT 2.4L vibration VIN: YV1LW5644V replaced r/f axle with canadian reman axle all is good.thanks for help just needed to confirm my suspicions couldn't throw parts at it.	16

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