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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 18, 2014
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Open Help Requests for All Makes and Models
Help Request Answers
2003 Buick LeSabre Limited 3.8L Unknown VIN: 1G4HR54K63
Has shudder at 1000-1500 rpms in 4th and 3rd gear under mild acceleration. Feels like possible misfire. Replaced plugs and ignition wires as they were O.E. did not fix. Replaced all coils and ignition module did not fix. Found TSB on TPS replaced it did not fi...
2004 Buick Rendezvous CX 3.4L po300 mifire VIN: 3G5DA03E04
my cusutomer brought it in for check engine light no driveability concerns. po300 code stored. when drivin or off idle it doesnt show any misifres when at idle every few minutes it will miss heavy for about 30 seconds on #5 and a few randoms on the other cylin...
1996 Chevrolet C1500 5.0L Cuts out, Stall, Hard Start VIN: 1GCEC14M6T
Working on a worn out 1996 C1500. Hard start almost always, runs for 10-15 seconds, stalls. When it does run longer, it cuts out with quick throttle input and backfires. It starts easier on carb clean. Fuel pump was leaking back pressure, so we replaced it a... Trouble codes: P0135 (O2 Sensor Heater Circuit Bank 1 Sensor 1), P0154 (O2 Low Activity B2S1)
1997 Chevrolet K3500 5.7L No Start, Hard start VIN: 1GBHK33R1V
Vehicle came in with a long crank/hard start cold. put fuel pressure gauge on first thing in the morning and pressure was good. did drop to about 5o psi when first cranking.its not weather related. truck has starting problem regaurdless of temp. cam retard was... Trouble codes: P0154 (B2/s1 no activity), P0131 (B1/s1 low voltage), P0140 (B1/s2 no activity), P0151 (B2/s1 low voltage)
1998 Chevrolet Express 3500 LS 5.7L No Comm. to scantool VIN: 1GBJG31R6W
98 Chevy Box Truck will not start, no communication to scan tool and check engine light gets no bulb check, no spark or fuel, repaired conn. to VCM and replaced comp., however dealer can not program, disconnected Brake mod. but did not restore Comm to scan too...
2004 Chevrolet Suburban 1500 LS 5.3L guages VIN: 1GNFK16T94
original complaint = dash acting up, shift indicater slow. found loose battery terminal. clean and tighten .check battery little weak ,charged and tested ok. overnight dead. charge again test for draw ,n.p.f. install new battery now ok. road test,hit large bum...
2006 Chevrolet Cobalt LS 2.2L Poor Idle Quality VIN: 1G1AK15F56
thanks in advance guys this colbalt has me stumped it came in for low cat efficancy code checked back pressure 1.5 psi ay 2500 rpm downstream o2 about 550mv scanner data not changed o2 mv lower sent customer home next day shes back code back freeze frame said ... Trouble codes: P0420
2000 Chrysler Cirrus LX 2.4L Misfire, MIL Lamp on VIN: 1C3EJ46X7Y
Vehicles fuel trims will be fine then around 1500 rpm under a load feels like the vehicle misfires and LTFT goes immediately to -25. Fuel trims will not go to -25 until that misfire is felt. There is no counts for misfires all at 0 and doing a cylinder balance... Trouble codes: P0172
2001 Dodge Ram 2500 5.9L Cuts out, no power VIN: 3B7KF23741
This car was towed in , not starting. No fuel at all from the transfer pump, and both batteries dead. we replaced both batteries and installed a fss fuel pump kit, and new injection pump. There were no codes when we got the car because the batteries were stone...
2007 Dodge Ram 1500 SLT 5.7L L/R solenoid VIN: 3D7KS19D87
Codes still coming back
2001 Ford Focus ZTS 2.0L Gets Hot VIN: 1FAFP38351
this focus cam in with thermostat housing leaking replace it with new thermostat and the hoses then water pump leaked still enging gets hot when driving yes the fans come on and cycle from what I see in the wiring daig this car uses a cylinder head temp switch...
2003 Ford F-250 Super Duty Lariat 5.4L Poor Idle Quality, Stall VIN: 1FTNX21L13
Customer brought me this truck, runs and drives down the road great, no codes. The problem its having is it will stumble and stall when put into reverse with foot on brake at times almost like the converter clutch is engaged, doesnt happene every time but seem...
2006 Ford Freestyle SEL 3.0L Transmission VIN: 1FMZK02106
This CVT trans knock in park and neutral but goes away when you pull it in gear and comes back when the axles rotate. I am certain the input shaft is bad. My question is what else needs to be replaced and do i need to replace the drive pulley also. Do i need a...
2007 Ford F-150 XLT 5.4L alternator VIN: 1FTPW14V87
This truck came in last week with battery light on and lights flickering and only charging 12.8 volts. I replaced the alternator with a reman Ultima alternator. Truck was fine for four days then started acting up again with the same symptoms. Do I have a bad a...
2009 Ford Flex SEL 3.5L Poor Fuel Economy, MIL Lamp on VIN: 2FMDK52CX9
I have checked for power at solenoid- good. Trigger wire from ECM has good continuity, neither wires have shorts to each other or ground. No corrosion or bent/pushed back pins in ECM or harness. VCT solenoid resistance is within specs, no shorts between either... Trouble codes: P0020 (VCT Bank 2 Cam actuator solenoid open circuit)
2005 GMC Yukon XL 1500 SLT 5.3L Airbag
Internal short in BCM was blowing fuse for dome lights and reverse lights. I replaced the BCM and programmed it using flasher pro and laptop thru Acdelco techconnect SPS. The BCM programmed like normal but I couldn't program the anti theft module with my lapto... Trouble codes: B1001 (Airbag signal configuration)
2007 GMC Sierra 3500 HD SLE 6.6L MIL Lamp on, reduced power VIN: 1GTJK33647
Need advice from diesel guys as I don't do very much other than mait. on diesel. Truck goes into reduced power mode, says exhaust filter needs cleaning. Wont do forced regen due to P02E7 re-setting immediately once vehicle is in motion. My question is where is... Trouble codes: P02E7
2006 Hummer H3 3.5L Surge, Misfire, MIL Lamp on VIN: 5GTDN13696
Replaced coils and plugs on customer request, still has multiple misfires on all cylinders. Seems to be more apparent when cold, still misfires but not as bad after warming up. Misfires are high on cylinder 4 with cylinders 1 and 5 not as high, misfires on 2 a... Trouble codes: P0300
2008 Kia Spectra SX 2.0L Shift Solenoid B VIN: KNAFE12168
Please help, car on take off bangs and shifts hard then gets stuck in 2nd possible safety mode, scanned car and got solenoid b underdrive malfuncion p0755 removed valve body and changed solenoid b but looking at wiring diagram it say that solenoid c is underdr...
2003 Land Rover Range Rover HSE 4.4L transfer case VIN: SALME11413
While driving at any speed transfer case goes to a neutral condition, engine revs up and vehicle stops moving and will not hold in park. You hear a slight whining sound and the 4x4 low indicator light that is located in the instrument cluster next to the trans...
2006 Lexus GS300 3.0L low beams VIN: JTHBH96S46
The customer arrived complaining of an intermittent low beam on the driver side. He also complained of both headlights being aimed as far down as possible. This is an HID system, and Toyota describes its operation as follows: "The adaptive front-lighting syst...
2006 Lexus IS250 2.5L Starting VIN: JTHBK26226
Car was towed in with a no start condition, I thought the starter was the problem like ive seen on many of these before or your typical battery.. I get in the car and the first thing I notice is the dash doesn't light up, the fuel pump stays constantly running...
2005 Mazda 6 S 3.0L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1YVHP80D15
any help would be nice I have tried walking away but it keeps sucking me back in and I feel it is something simple just at a lost as to a direction. mass air flow thing sent me here for help kinda pushed me over egde Trouble codes: P0134, P2195
1994 Mercedes-Benz E320 3.2L no throttle response VIN: WDBEA32E8R
Hello all, thanks for taking time to help us here...The maim question is: does anyone know how to get codes out of this car using a Baum Scan Tool DS2021. Baum no longer supports this tool, and the company they referred me to wasn't able to help. The instructi...
2005 Nissan Xterra Off-Road 4.0L Engine VIN: 5N1AN08U85
Hi to all tech, and tank you for the time to read my post, this is my brother in law girlfriend Xterra. After she got out off work it won't start, they used jumper wires start and just moved and die, she have been say in cold water always have problems to star...
2005 Porsche Cayenne Turbo 4.5L Level Control VIN: WP1AC29P35
Vehicle came in VERY low. Sitting on bump stops. Found four codes stored for level sensor failure at all four corners (774, [...]). Verified connections, verified wiring intact (5v, gnd, sig), calibration not possible due to sensor codes. Checked actu...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2004 Audi A4 3.0L Downshifting VIN: WAUJT68E34
2005 Audi A4 2.0L Engine VIN: WAUAF68E55
Hello and many thanks to all who replied. We took a break on this car because yours truly ran away to Florida for a week, but yesterday we brought it in and started to run the basic tests suggested. Kenneth and Seth were right, the engine is junk. We did a ...
2001 Cadillac DeVille DTS 4.6L Ride Control VIN: 1G6KF57971
the customer told me he heard the pump running before I couldn't get it to run more then about three seconds he told me to put the 919.29 a piece shocks on the car he would pay so I did it the compressor came on for like three seconds and I got into the back o...
2001 Ford F-250 Super Duty XL 5.4L Valve VIN: 1FTNF21L91
Removing the cab was the easiest,thanks to Bruce,Dave,Nick [...],and Mike. We repaired all the spark plug holes on the right head while we repaired the valve we screwed up.Thanks again!
2005 Ford Explorer XLT 4.0L No Start, Start and die VIN: 1FMZU63E65
Sorry for taken so long,thanks for all the good help,we checked all the connections at the pcm and wirring harness ,cleaned and reconnected still the same ended up replacing pcm and it fixed it.
2005 Ford F-150 FX4 5.4L ticking in first gear even with anti rattle clip VIN: 1FTPW14565
Ok, it is definitely the intermediate sprag clicking (as loud as if you had it in your hand turning it). It will even do it on a rack while rotating the driveshaft forward? It is not a planetary gear and it only does it in first gear with engine running, vehic...
2006 Ford F-350 Super Duty XL 6.0L Hesitation, low power VIN: 1FDWX37P26
Thanks for all the help! The new FICM with the increased voltage does set a code but does not turn on the mil. The oil change with Motorcraft filter helped some also. We stopped at "pretty good." It starts "ok" and has acceptable power now so leaving it at... Trouble codes: P0611.
1997 GMC K3500 Sierra SL 6.5L block VIN: 1GDJK34F3V
well thank goodness for Hal [...]!! you saved me hours of pointless labor. this had an upper radiator hose leaking from the bottom of hose where it attaches to thermostat housing. coolant ran down the valley to a drain hole between engine ...
2004 Honda Pilot EX 3.5L door locks VIN: 2HKYF18684
Well I checked all the grounds that I could find and the wires going into the door. All was good so did what most suggested and replaced the actuator on the drives door and so far so good. Thank U all very much
1997 Lincoln Town Car Signature 4.6L air spring VIN: 1LNLM82W4V
after long debate we decided to do the coil spring kit. still a bit confused why one bag will deflate and not the other there are no leaks in the bags and with the system switch in the off position there is no leak down at any ride highth. thanks for all the r...
2008 Porsche Cayenne 3.6L Misfire VIN: WP1AA29P58
It turns out after removing the intake manifold that we discovered heavy build up on the back of the intake valves. We walnut blasted the intake valves and replaced # 3 injector and changed the oil to get the gas out of the oil. We reinstalled everything and t... Trouble codes: P0303 (Misfire cylider 3), P0300 (Misfire cylinder 6).
2006 Saab 9-5 2.3t 2.3L Auto Leveling VIN: YS3ED49G76
Thanks everyone for your input (some very funny). I learned from this experience that if I am going to diagnose and repair Saab Xenon automatic leveling systems in the future I will need the proper factory test equipment (Tech 2) I sent this vehicle to a fr...
2008 Toyota Tundra 5.7L MIL Lamp on
Looks like this may be caused by a wrong calibration. For more information check this thread Thanks to All who replied. Trouble codes: P0101 (MAF Performance).
2004 Volkswagen Passat GLX 2.8L coolant VIN: WVWWH63B24
I told the customer that more than likely it will be the thermostat housing as most of the replies stated (thank you) however,since our business doesn't have the right tooling nor does it have the training we decided to have the customer take it to someone tha...
2007 Volkswagen Touareg 3.6L Engine VIN: WVGZE77L77
Thanks for the info, we found the VIN split at the salvage yards to be incorrect. A 08 engine worked just fine.
2002 Volvo V70 T5 2.3L module VIN: YV1SW53D62
Had to take the car to the local dealership and have them wake up the climate control module, we do not know if the original problem of intermittently switching to heater on its own is fixed as the weather has gotten colder
2006 Volvo V70 R 2.5L fuel system VIN: YV1SJ527X6
Thanks to all who helped. Everyone agreed that the fuel pump is working overtime - when we went to change it we found the PVC fuel line kinked. I installed a rubber hose and some clamps to hold it straight. 40 km road test confirms the fix.
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