Automotive Technicians Technical Discussion and Fixes for Sep 10, 2012

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	Help Request	Answers
	2003 Audi A4 1.8L fuel pump noise VIN: WAUVC68E73 Hey guys. This is the non return system. I replaced the fuel pump because of noise, I noticed he already had the updated pump in there. The noise returned shortly after. The buzzing was acutally coming from the left side which is where the level sender is. I p...	View
	2007 Audi A4 2.0L MIL Lamp on VIN: WAUAF78E07 This car came to me with codes P0442 and P0455. I checked the system and found the purge solenoid was defective. Replaced it and 3 days later code P0455 returned. Smoke tested and no leaks found. Replaced the leak detection pump as per the flow chart on Mitche... Trouble codes: P0455 (Evap large leak detected)	View
	2002 Buick Rendezvous CXL 3.4L ac compressor VIN: 3G5DB03E02 this rendezvous came in with ac inop originally after we replaced the battery. searched and found issues with the bcm getting stuck in a logic lock so we disconnected the battery shorted the cables together and then it worked fine. came back a week later same ...	View
	1988 Chevrolet P30 Step-Van 7.4L Charging VIN: 1GBKP37W3J My own rv [of course] the electrical system isn't charging the coach batteries. After much tracing of cables, I found that the small solenoid located in the electrical box under the hood is not being told to come on. There are 3 solenoids in this box, one for ...	View
	1997 Chevrolet Blazer 4.3L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 1GNDT13W8V 1997 chevy blazer P0300 missfire counter reads miss on 5 and 4 real bad barley runs replaced cap rotor plugs wires checked compression and fuel pressure customer said it ran fine and thought she bought some bad gas replace fuel filter and drained tank filled w... Trouble codes: P0300	View
	1997 Chevrolet Cavalier 2.2L Engine VIN: 1G1JC1241V After replacing head gasket (performed elsewhere) the car will fire and sometimes idle but very rough and if you try to push the accelerator it will die totally flooding the engine. If you try and fire it up again it will hydro lock the engine. I replaced the ...	View
	1998 Chevrolet C2500 Cheyenne 6.5L Stall VIN: 1GCGC29F3W Thanks for any help in advance. Im changing a fuel solonid driver on a 6.5 and i pull the old one off and there isnt a chip in the plug in on the old driver. Ive only done a few of these and all the previous ones have had this chip in the plug in. Is this some...	View
	2000 Chevrolet Blazer LS 4.3L transfercase VIN: 1GNDT13W5Y The problem I have with this particular vehicle is that all of the lights on the 4WD selector switch stay on. So the vehicle is stuck on 4WD all the time. After doing some electrical testing and follwing procedures from mitchell I was unable to pinpoint the ex...	View
	2003 Chevrolet Silverado 2500 HD 6.6L fuel line VIN: 1GCHK29193 Working on a 2003 K2500 pickup with diesel engine. Usually don't work on diesels but this truck was dropped off with fuel leak. Lines severely rusted and leaking at connection from fuel tank to frame lines. Impossible to remove steel line from quick fittings d...	View
	2006 Chevrolet Tahoe Z71 5.3L Hesitation, MIL Lamp on, Reduced Power, Locks VIN: 1GNEK13T56 Hi everyone, and thanks in advance for your help and for taking the time to read this. We've got a bit of a situation with this Tahoe that has us stumped so far... We are a used car dealer/repair shop that specializes in Volvo, but we took this Tahoe in trade... Trouble codes: U0107 (Lost communication with Throttle Actuator Control TAC Module), U1000 (Class 2 Datalink fault), C0244 (EBCM control valve/PWM delay torque fault), C0240 (EBCM fault/PCM indicates TCS fault), C0196 (Yaw rate circuit fault), C0455 (Steering wheel position sensor fault)	View
	2001 Chrysler Sebring LX 2.7L Starter VIN: 1C3EL45U91 Customer complaint of no crank no start intermittenly. I was able to have it happen and confirmed no power to starter soleniod. Good power coming from ignition switch yellow wire during no start. Found no ground through PCM testing at starter relay and at PCM ...	View
	2003 Chrysler Sebring LX 2.4L Hesitation VIN: 1C3EL46X53 Car has hesitatoin sometimes .no codes--scan tool data reads cam in sinc .crank out of sink. Cam crank differance 1 degrees.	View
	2004 Chrysler Pacifica 3.5L Stall, Misfire, MIL Lamp on VIN: 2C8GM68444 I stuck to the ign coil diagnostics because the #5 cyl was not firing and like I said after replacement it ran good untill it was dropped into gear and driven maybe something is getting pulled apart Trouble codes: P0355, P0354, P0206, P0404	View
	2006 Chrysler 300 C 5.7L MIL Lamp on VIN: 2C3KK63H36 Ck eng lite on p1128 closed loop not achieved [...] new engine from jasper no driveabilty concers no misfires readings on wi tech scanner Trouble codes: P1128 (Closed loop not achieved bank 1)	View
	2006 Chrysler Town & Country 3.3L Air Bag Light VIN: 1A4GP45R06 Got one that I could use a little direction on. 2006 Chrysler TC van with an air bag light on all the time. Van came in a couple weeks ago with the light on and we were not able to get any trouble codes from the system even though the air bag light comes on ri...	View
	2002 Dodge Intrepid SE 2.7L shift solenoid pack VIN: 2B3HD46R82 This car was in a year & 15,000 ago with shifting issue's and P1776 code L-R switch valve stuck. I replace the valve body assembly. Customer brought the car back last week the transmission is not shifting,(in limp-in mode). This time the code is a P0846 code 2...	View
	2003 Dodge Ram 1500 SLT 4.7L Mechanical VIN: 1D7HU18NX3 came in with number 8 exhaust rocker laying in head possible bad head gasket is there a way to hold tensioner in place to pull head or what might else we look for thanks	View
	2004 Dodge Ram 1500 ST 4.7L Misfire, MIL Lamp on VIN: 1D7HA18N24 Truck came in with Po306,300. We found a bad injector on #6 & 306 went away. However other problem is that at approx 4400rpm while driving, & heavy accel, the truck starts losing power(like the fuel cut-out is kicking in)The check eng light starts flashing whe... Trouble codes: P0300	View
	1994 Ford Explorer Eddie Bauer 4.0L Alternator VIN: 1FMDU34X8R New battery old one was cooked by over charge. Replaced alternator with numerous NEW NAPA Alternators all tested good off vehicle. When hooked up on vehicle output is between 15 and 17.4 volts never higher than 17.4v. I have inspected all wires to and from alt...	View
	1998 Ford Mustang 3.8L od light flashing VIN: 1FAFP4048W i did a transmission flush.its still the same.i have no codes.if i shut the engine of the light does not flash when i started back up at idler,when i start moving again it starts flashing,also all the gears are shifting fine even the overdrive works,but when o...	View
	2002 Ford Windstar SE 3.8L rear HVAC controls VIN: 2FMZA524X2 This Winstar van with front and rear a/c & heat. If you control the rear unit from the front controls it works perfectly. When we switch it to rear passenger control it defaults to heat coming from the bottom and blower speed max. No passenger control at all. ...	View
	2002 Ford Focus SE 2.0L Cuts out VIN: 1FAFP34342 hi all,i am in need of some help with moms car.the car will be driving fine then all of a sudden the "powertrain warning lamp"will come on and the car will stall.she will put it in nuteral,recrank the car and it will restart and be fine"for a while".i scanned ...	View
	2004 Ford F-350 Super Duty XL 6.0L broken part VIN: 1FTSW31P34 The crank sensor has broken off in the block, this one is broken off inside the motor, we got all of the sensor shell except for what sticks through the inside of the block (there is a gap between the reluctor and the block, what is left of the sensor shell is...	View
	2007 Ford Focus S 2.0L No Start, Stall VIN: 1FAHP37N37 Hey guys, got a focus giving me some problems here. It originally came in with a no start condition after driving through water (don't know how deep it was)-no power was getting to the fuel pump. I had powers and grounds at the driver module under the back sea... Trouble codes: P0191	View
	1977 GMC C15 Sierra Classic 5.7L Cuts out, backfire/exaust VIN: TCL447Z515 hey people, this is a head scratcher... we dropped in a new 350 crate eng.,with new edelbrock 600 cfm 4bbl,(EGR blocked), performer edelbrock manifold,full tune up, ie... cap,rotor,plugs,wires,fuel,air,LOF. customer brought truck back with complaint it wasn't ...	View
	2002 GMC Sonoma SLS 4.3L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GTDT13W12 misfires only on left bank, no misfires on right happes through rpm range only has one cat for vehicle, short term fuel trim +35 lg term -8 injector pulse width running for right bank4.7 for left bank 8.9 at idle. Why the difference and why oly one bank misfir... Trouble codes: P0300, P0440	View
	2002 GMC Sierra 2500 HD SL 6.6L Mechanical VIN: 4X4FCAE202 Thanks in advance for all the help. Truck came in running bad no power miss firing. Scand found code po202 and p1249 Check injector wiring harness but did not find any thing. Truck has lots of miles. From what i can tell i need to replace the injector wiring h...	View
	2008 GMC Sierra 1500 WT 5.3L Mechanical VIN: 1GTEK19J38 I have an oil leak, which appears to be engine oil, coming from the area under the battery on the inner fender on this truck. The engine and trans themselves are dry, but this is pushing enough oil out to stick to the tailgate after a highway trip. A/C drier i...	View
	1993 Honda Accord LX 2.2L Balance shaft VIN: JHMCB7656P Looking for some input on a car we have in the shop. Timing belt was done 6 months ago by a shop. It was towed to us making a terrible noise. Pulled the timing covers to find the balance shaft pulley just fell out on the ground. The tip of the balance shaft ...	View
	2008 Honda Accord EX 2.4L MIL Lamp on VIN: 1HGCP36808 Customer states after long drive cars green eco light wont come on any longer and vehicle begins using greater fuel amounts. Service engine soon light comes on and vehicles performance changes and at lower speeds seems to misfire. After keying car off and then...	View
	2004 Mazda 6 S 3.0L Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1YVHP80D84 Vehicle came in with s.e.s. Light on and flashing. Before i road test, oil was all over engine, check oil dipstick, no oil regestering. Add 4 quarts of oil, customer said oil cap was left off after oil change was done at a quick place. Started engine and heard... Trouble codes: P0300 (Random missfire), P0171 (Lean bank 1), P0174 (Lean bank 2), P0022 (Cmp timing over retarded lh), P0345	View
	2010 Mazda 3 i 2.0L no communication VIN: JM1BL1SF6A Hello, this car is from an auto auction. It came in with abs light/brake light on and a squeak complaint, but it ran. We tried to hook up our Solus and it powers up but will not communicate with any module, not even global. We noticed the battery was weak, so ...	View
	2002 Mercedes-Benz C240 2.6L No Start VIN: WDBRF61JX2 Car was towed in,cranks no start. I have 50psi fuel pressure,no spark,and no injector pulse. I put my Modis on the CKP and CMP. CMP and CKP both looked good. I also put my low amp probe on a couple different injector wires and got no signal. I get a crank rp... Trouble codes: B1036	View
	2004 Mercedes-Benz C230 Kompressor 1.8L A/C off on panel VIN: WDBRF40J74 Help me on this Mercedes. On the control panel the A/C off button stays lit all the time. I take it that button is not lying because A/C does not blow cold. From other posts, it appears that this system has a continuous Compressor "Clutch" operation or engagem...	View
	2008 Mercedes-Benz S63 AMG 6.3L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: WDDNG77X38 This car was ran without oil because the oil cooler hose was out of place and the radiator fan wore a hole in it. All 9.5 qts of synthetic oil sprayed out before customer knew what happened. Car was driven until it shut off. The customer said he restarted it b... Trouble codes: P0300, P0348, P0305, P0306, P0308, P0368	View
	1997 Nissan Altima GLE 2.4L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 1N4BU31D3V Hello techs. There is only one way to start this request. HELP!!! I have a nissan eating me alive. It started out as a simple oil leak repair. Found the timing cover leaking so we sold a timing chain and cover job. I got it all back together and the car ran te...	View
	1999 Nissan Maxima GLE 3.0L No Start VIN: JN1CA21A8X When starting a warm or hot engine at times will crank forever before actually starting. Most of the time it starts just fine,other times it acts as it is flooded or the timing is not right. This car runs purrrrrfect down the road. Jeep & Chrysler retired tech...	View
	2002 Renault Megane 1.4L No Start VIN: VF1LA0W052 The car was sometimes misfiring mostly when changing gears. Then cleaned plugs and coils. The car started and continued to show same problems. The car was stopped then afterwards could not start. No spark and no fuel. Checked the Crankshaft sensor with scope s...	View
	2004 Saab 9-3 Linear 2.0L Tdc VIN: YS3FB49SX4 Can anyone tell me if the TDC mark on the crank pulley is really tdc or is it offset. Cant seem to get it timed correctly. This motor has been apart before i got it. I don't know if it was ever put together right before i got it..	View
	2005 Scion xA 1.5L transmission VIN: JTKKT624X5 transmission wont shift into overdrive all the time.sometimes it will and sometimes it won't	View
	2005 Subaru Legacy GT Limited 2.5L clutch/flywheel VIN: 4S3BL67685 Hi, I have this Subaru here and am in need of some information on the correcrt procedure when replacing these clutches. The Subaru dealer said that you're not supposed to re-surface these dual-mass flywheels and what problems, if any, it will cause. They said...	View
	2003 Toyota 4Runner SR5 4.7L skid control ecu VIN: JTEZT14R03 The 140 amp fusible link was blown.Replaced link,vehicle starts,runs and charges fine.Abs,vsc,vtc,and e-brake lights are on.Tech stream shows codes c1223 and c1254.Re-check connections in fuse box,checked all relays.Diagnostic tree has you check pressure switc...	View
	1997 Volkswagen Jetta GL 2.0L Window VIN: 3VWXA81H4V Customer called for an estimate on a window repair. Of course she wanted to know how much ! driver side power window operates erracticly, makes a slapping noise when it goes up. Sometimes stops half up. Has anyone had experience with these. Window regulator, w...	View
	2000 Volkswagen Beetle GLS 1.8L Poor Idle Quality, Hesitation VIN: 3VWCD21C0Y Hello all, This Beetle came in with what we thought was a classic case of a bad throttle. 17953 and 17950 codes were set. The old throttle would not adapt, it would give a status of ERROR. So, I got a new throttle from VW and replaced it. Adapted it, workes fi... Trouble codes: 17953 (Throttle Valve Controller), 17950 (Angle Sensor 1 for Throttle Actuator G187)	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1999 Audi A6 Quattro 2.8L right brake assmbly VIN: WAUBA24BXX Hello,we had the car's pedal sink low 1 time so I replaced the master cylinder.It still had high temperature on the right front.The right front was 210 degrees and the rest were 140 degrees after a drive.I checked the wheel bearing temp. and both sides were 95...	10
	2007 Chevrolet Equinox LT 3.4L stabiltrak VIN: 2CNDL63F77 WELL GUYS I HATE TO SAY IT BUT I HAVE NOT YET COME TO AN ANSWER ON THIS ONE. UNFORTUNATELY THE CUSTOMER CALLED AND SAID IT HAS NOT HAPPENED AGAIN SINCE WE SCANNED IT AND SHE DOES NOT WANT TO GO ANY FURTHER ON IT. SHE IS A GOOD CUSTOMER SO IM SURE IF IT DOES RE...	4
	2008 Chevrolet Express 3500 6.0L Hesitation, MIL Lamp on, No Power VIN: 1GAHG39K58 After rechecking all the wires and eliminating them as a cause it pretty much had to be the ECM as a few of you suggested. Dealer had more than one in stock which is always a good sign. Installed the new ECM programmed it and the truck runs great! I couldn't s... Trouble codes: P0325.	10
	1996 Dodge Stratus 2.4L Unknown VIN: 1B3EJ46X7T Special Thanks to Marc-Andre from Quebec. He told me what I was forgetting. When fans start operating, there is a peak amperage spike then a lower steady amperage. I was turning on the low fan relay with my scanner then reading constant amperage of both fans a...	18
	1999 Dodge Ram 2500 5.9L No Shift VIN: 1B7KF2364X Thank you everybody. All answers were good. Carl from Colorado, Thanks for your diagnosis tips. Pressure very low in foreward and reverse. 15 lbs. No pieces in pan. No valves popped off. The trans fluid was darker than normal and more than enough shavings on t...	27
	2002 Dodge Ram 1500 SLT 4.7L MIL Lamp on VIN: 1D7HU16N02 thanks to all who replied. The customer has not returned for any further diagnostics. i am interested if his problem will be able to be duplicated better since winter is approaching here. Most people suggested headgasket or valve issues which is what i expect.... Trouble codes: P0302 (Cyl 2 misfire).	14
	2004 Dodge Ram 3500 ST 5.9L Excessive Emissions VIN: 3D7MU48C04 This truck had a Transmission problem...Sent it for a RE-BUILD...Now it's BETTER than new...Customer got a new upgraded converter, upgraded input shaft and Cluthes...He's Happy now	5
	2005 Dodge Grand Caravan SE 3.3L a c VIN: 1D4GP24R05 Thanks for all the help. I replaced the h valve , evac and recharge. That did the trick custmer is happy A/c blowes cold front and rear	8
	2008 Dodge Grand Caravan SXT 3.8L Lights,Horn,Wipers VIN: 1D8HN54P38 The customer was able to leave the car with us for an entire week. Believe it or not it has never acted up again. We pulled the tipm and inspected the wiring an all was ok. No corrosion at all. We are not sure if this van has a chaffed wire or a bad tipm at th...	8
	2008 Dodge Grand Caravan SXT 3.8L Communication VIN: 2D8HN54P78 Hi all. Thank you for all the help. I'm considering this vehicle fixed now. I replaced the TIPM. All is well for the last week. Some things of note from this repair: -to reprogram this module I needed to leave the key KOEO for 12 secs and let it pull info... Trouble codes: U0141 (Loss of communication with TIPM), P0691 (Cooling fan circuit low), P0692 (Cooling fan circuit high), U140E, U1414 (Implausible ecu network config).	8
	2009 Dodge Charger R/T 5.7L key switch Hey guys dave from minn. was right on the money grounding pin 12 at the win did not release the key, replaced the win but had to go to dealer for programing and all is good thank you for all the help and advice.i just dont know what us independents are going ...	3
	1994 Ford Taurus GL 3.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, MIL Lamp on VIN: 1FALP52U6R Hi all.Thanks for all the response-tried everything suggested and then some.nothing seemed to help.The problem seemed to be in wiring harness-tried wiggle tests,cut back harness in a couple places-found nothing.Came to conclusion that harness is bad somewhere....	18
	2000 Ford Excursion XLT 7.3L speed sensor VIN: 1FMSU41F9Y Thanks for all the replies.I ended up finding the output shaft and turbin shaft signal wires at the connecter on inner fenderwell rubbed through and touching each other	6
	2002 Ford Focus SE 2.0L No Start VIN: 1FAFP34P02 well i feel a bit sheepish. I work at a small facility with only 2 lifts and one lift is inop right now. So all the while this car has been sitting outside in parking lot while I have been trying to figure out why it won't start. Finally got it in today and... Trouble codes: P0442 (Evaporative emissions control system small leak detected), P1246 (Alternator load input failed).	20
	2004 Ford E-350 Super Duty 5.4L Excessive Emissions, Hesitation, MIL Lamp on VIN: 1FTSE34L14 I finally found it! The fix was the hose going from the replacement fuel pump to the PPRV valve had split. The split was because the replacement pump hose diameter is 5/16 and the PPRV valve is 3/8. When you stretch a 5/16 hos3 to 3/8 the cords inside must ... Trouble codes: P0172, P2196, P2198, P0190, P0175.	8
	2007 Ford E-450 Super Duty 6.8L cel intermitent VIN: 1FDXE45S17 Thanks for the replies got some good help unfortunately soon after I posted this it was taken out of my hands and sent to the dealership so I was not able to try any of them. Scott suggested to watch pressure gauge for fluctuations for possible epc solenoid fa...	3
	2008 Ford F-150 King Ranch 5.4L Elec Fan Clutch VIN: 1FTPW12V38 Gentlemen Thanks to all who replied it of course was a bad fan clutch of course the customer is bucks up but frugal and elected to trade the truck in rather than fix it Thanx Again Dave [...]	6
	2002 GMC Envoy XL SLT 4.2L oil pressure gauge VIN: 1GKES16S72 THANKS FOR EVERYONES RESPONSE!!! WE ENDED UP CHANGING BOTH FUEL PUMP & REGULATOR WITH A THROTTLE BODY CLEANING AGAIN. TOOK CARE OF THE PROBLEM.	8
	2004 Hyundai Elantra GLS 2.0L MIL Lamp on VIN: KMHDN46D24 Thanks for your replies. The Hyundai website has a lot of good info. After driving for a few days the problem cleared up. I think the actuator may have had a piece of something that jammed it. No more code and it runs great. Thanks--Jim Trouble codes: P0341 (Cam sensor).	3
	2007 Jeep Grand Cherokee Limited 3.0L Mechanical VIN: 1J8HR58M27 the leak ended up being the rear main. the oil that came from the top must of been because it was over filled	6
	2004 Mazda MPV ES 3.0L MIL Lamp on YOU WERE ALL CORRECT, IT WAS THAT PCV HOSE BEHIND THE PLENUM. KINDA HARD TO SEE. I FOUND IT WITH A SMOKE MACHINE. THANK YOU ALL VERY VERY MUCH! Trouble codes: P0171 (Right bank lean), P0174 (Left bank lean).	10
	2002 Mercury Sable GS 3.0L Transmission VIN: 1MEFM50UX2 All concerned wanted a replacement pcm installed. After installing and programming replacement I ran a check on all modules. These was no communication with the abs module. No codes listed, module failed ids communication test. This problem was present the fir...	3
	2001 Oldsmobile Silhouette Premiere 3.4L Heater Case VIN: 1GHDX13E11 Custmer dont want to spend money to take the heater case apart and repair. when the weather gets hot he will be back	5
	2002 Oldsmobile Silhouette Premiere 3.4L Surge VIN: 1GHDX03E02 Thanks to all who responded. The EGR scan data was normal, the fuel pressure and volume checked OK, and the PCM has been updated recently (sorry that wasn't in my original post). I'm quite sure the problem is that the engine has some internal noises that I am ...	16
	2004 Porsche Cayenne S 4.5L water pump VIN: NP1ZZZ9PZ4 thanks for everyones reply,i removed the leaking water pump,then lifted the inlet manifold,and what do i find,alloy pipes already fitted,probly done by previous owner,or was original,anyway i didnt fit them,customer bought them from the usa now stuck with them...	10
	2003 Saab 9-5 Linear 2.3L Alternator VIN: YS3EB49E43 1st replacement alternator was defective and DID in fact behave exactly as the original in the vehicle. After rechecking my voltage drops on both Batt pos and neg sides of alternator, I took both alternators to local rebuilding shop to have them bench tested. ...	8
	2004 Toyota Tacoma Pre Runner 3.4L drive-line vibration VIN: 5TEGN92N84 Customer declined further repairs, but I suspect a u-joint problem after viewing replies. Thanks for all of the suggestions, everybody.	7
	2002 Volkswagen Golf GL 1.9L idle fault VIN: WVWZZZ1JZ2 Thanks for all the replies...I had tried them all already then i found this on vag-com message board. the only difference was i had a "-" in the channel reading which i reset to "0"... I reckon the problem was the EGR adaption, but why cleaning the throttle ...	8
	2006 Volkswagen Beetle 2.5 2.5L Air pump VIN: 3VWSF31Y76 relay fixed it. Thanks Daniel [...] for the help!!	9

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