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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 2, 2012
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for All Makes and Models
Help Request Answers
2000 Audi A6 Quattro 2.7L No Start, Cuts out, Stall VIN: WAUED24B3Y
need some advise on where to start on this one please, customer concern is that engine will just shut off while driving and will start after sitting for a few minutes. at first i could not duplicate problem so i scaned ecu to see if any codes were present, fou... Trouble codes: P1557, P1602
2007 Audi A4 Cabriolet 2.0L Cylinder Head VIN: WAUAF48H27
This one is for all the AUDI techs out there. I have this 2007 2.0L Turbo. I took the valve cover off, but it looks like there's another sub-frame that is part of the Camshaft Caps that is leaking as well. It has an oil leak coming from the back of the cylinde...
1996 BMW 740iL 4.4L Alarm VIN: WBAGJ8329T
Alarm keeps going off, no codes other than the "Continuous Voltage" code. Checked hood sensor, fuse(s), and OK there. Re-coded/programmed the ZKE module and still the alarm is going off. Checked power/ground connections and all are good (unless I missed somet...
1986 Cadillac DeVille Touring 4.1L electronic climate control VIN: 1G6CD6987G
this car is a friend of ours and the fuel display screen and climate control screen is inop the only thing that shows up is the letter D on both screen and no heater control any of you cadi guys ever come across this before let me know or any ideas i havent wo...
2009 Cadillac Escalade 6.2L front suspension VIN: 1GYFK23289
Truck rides as if front suspension has no shocks/springs, like body is fastened directly to front differential. Scanned suspension system, no codes (OTC scanner). Ran test on compressor test, compressor will pump up rear suspension, air will exhaust at complet...
1996 Chevrolet K1500 Cheyenne 5.7L power steering VIN: 2GCEK19R1T
I have a simple system that is turning out to be a headache. I have power steering that works fine when driving, but in the parking lot it goes away. If you sit still and turn the wheel back and forth a few times the power steering quits and the fluid gets aer...
1999 Chevrolet K1500 Suburban 5.7L 2nd gear VIN: 3GNFK16R0X
Hello there I have this Suburban and I got it from cust with second gear missing. I don't get into fixing transmissions so I took it to a very reputable transmission shop and they looked at it and said second gear band is bad. With that i quoted out a price to...
2001 Chevrolet Impala LS 3.8L Mechanical VIN: 2G1WH55K21
At 40 and 50mph the vehicle will buck let off the thottle all is well when this happens if you touch the brakes also will go away no codes no ses light looks like on the scanner tcc if not sure where to be any ideas
2007 Chevrolet Malibu LT 3.5L flex plate VIN: 1G1ZT58N57
costumer said that motor had internal damage by another shop.i check it and i found an exhaust leak and a loud noise at above 2000 rpm.sound like scrapping noise only,not like a knock.i pulled the stater off to confirm my susspision that the fly wheel was scra...
2009 Chevrolet Tahoe LS 5.3L MIL Lamp on, P1174 VIN: 1GNFK03069
Hi all, this is one of our ems trucks for moving people and supplies around. P1174 came on about 200 miles ago and i looked it over and didnt see anything wrong. Made note of code and date in door jam and cleared codes. Less then 100 miles code is back. Ordere... Trouble codes: P1174 (fuel trim cylinder balance bank 2)
1997 Dodge B2500 5.2L Unknown VIN: 2B6HB21Y8V
Morning All, I have this van with a high idle issue. I manually ran the the idle motor down to just about a stall, but when I try to run it down with the scan tool- the lowest I can get it is about 1100 rpm's ? Checked the wire harness from the PCM to the idle...
2002 Dodge Intrepid SE 2.7L p1776 VIN: 2B3HD46R02
Car came to us with p1776 jerk and go into limpin.Diagnoised as valvebody, replaced with oe reman valvebody assembly. checked terminal tightness on solenoid conn. Car came back with p1776, p0841,p0871,. replaced trans with used unit swapped new valvebody into ...
2003 Ford F-550 Super Duty Lariat 6.0L Misfire VIN: 1FDAF56P73
obvious miss on cyl #6 with IDS power balance. relative compression test shows no concerns. cannot get code to reset unless engine is running. it will pass the injector electrical self test everytime. inspected injector and ficm connectors, all looks ok. check... Trouble codes: P0277, P0278
2006 Ford F650 7.2L No Start VIN: 3FRNF65F76
will no start work done to get it started again. (this truck has two tank on both side) left side tank no pump but it has a fuel sender unit found the suction pump located on top of the fuel tank on the right side (right side is the primary tank and left side ...
1997 Geo Prizm 1.6L Brakes VIN: 1Y1SK5260V
Customer states that car loses power and won't go over 30 mph. I test drove car over a period of 3 days and finally the problem reared its ugly head. Turns out the car was losing power due to the All Four Brakes Being applied. Both front brake pads lining wh...
1999 GMC C2500 Sierra SLE 5.7L Poor Idle Quality, Misfire VIN: 1GTGC24R7X
I have instsalled a new updated injection from central SFI to MFI on this vortec and this truck isnt running on #5 #7 #6 #8 it is still reading full rich and at about 2500 to 3000 rpm it clears up fuel trim reads -30 on both banks and o2s read full rich at idl...
1997 Honda Accord LX 2.2L Poor Idle Quality, Stall VIN: 1HGCD5539V
This accord will idle low & stall often when warmed up. we pulled the iac off and found it a little carboned up but didn't see anything wrong. Throttle body passages are wide open. Applying vacuum to the egr kills engine. I had another iac that was known fault...
2006 Honda CR-V EX 2.4L Drive Line VIN: JHLRD77876
Hello all. We have this CR-V that exhibits a moderate vibration during acceleration in all gears.When at cruise or slowing no vibration is felt.Vibration occurs ONLY on acceleration.I removed the rear drive shaft and vibration remained.Rear differential dual p...
2003 Infiniti G35 3.5L overdrive
Hello everyone . I have a transmission that shifts normally thru all gears until overdrive ,then engine revs, no overdrive engagement. Trying to fing out if anyone has seen this before, Is this normally a valve body /soloniod prblem. or a mechanical failure in...
2004 Isuzu Axiom S 3.5L misfire VIN: 4S2DF58Y94
Hi guys, have one here that I cant figure out. This vehicle starts and runs fine, however for unknown reason when I put it in gear (sometimes) the entire left bank of cylinders goes dead cylinders 2,4, and 6 drop out. It will not do it all the time but when th...
2007 Jeep Grand Cherokee Laredo 3.7L performance VIN: 1J8GS48K27
this vehicle hesitated to start as if engine was flooding. took out spark plugs to check for exessive fuel in cilinder,but plugs were dry.checked fuel pressure,was as specified in the fsm. when i tried to start the check engine started blinking,i think due to ...
2010 Lexus IS250 2.5L power windows VIN: JTHBF5C23A
Hi all, I have this lexus that is kicking my but over here. Maybe someone can help me. The right front window is inop with the master window switch. It works ok with the right front switch. So i know the right front switch and motor are good. I am not sure abo...
2002 Lincoln LS 3.0L Cat monitor VIN: 1LNHM86S62
This car came in with multiple codes.customer told me to fix everything relating to codes.does not want to see the check engine light again!made repairs as mentioned previously.have driven many miles since reassembling.i don't like to give a vehicle back unles...
2006 Mazda 3 S 2.3L at light flash VIN: JM1BK34436
hi guys hope you can help, this mazda has only one complaint,intermittent thump while driving is what customer stated,i road test for @ 20 miles then finally felt a bucking a/t light flashed once, gear indicator droped from 5 down to 3 and trans followed [down...
1988 Mercedes-Benz 420SEL 4.2L Cruise Control VIN: WDBCA35D9J
Looking for any good ideas as to where to go next on this car. I have the MB special tool for testing all of the cruise control inputs to the amplifier and all signal inputs test good (Cruise switch inputs, power, ground, throttle motor operation, good ground ...
1999 Mercedes-Benz CL600 6.0L code light is off VIN: WDBGA76G9X
Hello Mercedes Techs We keep getting the PO 100 code, cleared the code test drove car and code returns, we replaced the right air mass sensor with a factory rebuilt unit, cleared the code and test drove again and after driving about 20 miles code has returned,... Trouble codes: P00, 100 (right air mass sensor), C1025 (can signal abs not available)
2000 Mercedes-Benz ML430 4.3L MIL Lamp on VIN: 4JGAB72E2Y
Hi Guys, I got this 2000 Mercedes ML430 with engine light is on reads code P0100 Mass air Flow Circuit, install new mass air flow sensor from mercedes & the code still comes back on after 10 miles of driving, No vacuum leak found, check the circuit from the se...
2005 Mercedes-Benz S500 4Matic 5.0L Cuts out, Stall, MIL Lamp on VIN: WDBNG84J35
Hello everyone, This vehicle has an intermittant drivability problem.Sometimes it will run slight rough & stalls in idle speed. as well as will hasitates between 0 to 1o miles per hours speed. The MIL light comes on with code # p0104 & stays on when it happen... Trouble codes: P0104 (Maf sensor signal)
2000 Pontiac Grand Prix SE 3.8L No Start VIN: 1G2WJ52K4Y
Hey guys need some help on this one does this this pontiac have a bcm and vtd module alldata is not giving a good description on a 2000 model! need to get this pon figured out! it starts and runs for about 5 seconds and dyes with the the theft light flashing t... Trouble codes: P1629
2004 Pontiac Grand Prix GT2 3.8L Theft System VIN: 2G2WS54284
This car had an issue with mph not reading correct so i replaced the cluster with a used on . The prob. Was the miles on the new used one was too much more so without starting the car i put the original one back , but when i tried to start it the theft indicat...
2006 Pontiac G6 GT 3.5L engine VIN: 1G2ZH55816
Engine has been replaced due to broken piston ring. on occasion it will stall turn the key warning light will come on but car will not crank. after sitting for 1 or 2 minutes will crank and start fine Only has done this 3 times. No warning, might go for a week...
2001 Saab 9-5 SE 3.0L Mechanical VIN: YS3EF58Z91
Owner brought in for smoking oil problem-accessed turbo and found turbo rotor is loose-bearing shot-my question is this-turbo did not appear to be "boosting" on test drive before we opened it up-owner just uses as a second car and hasn't noticed the lack of tu...
2002 Saab 9-3 SE 2.0L Radio VIN: YS3DF58K22
Hey all thanks in advance for the input! we have this saab in that had an incorrect alternator (improper amperage output on the low side) and ever since then the radio has not worked. The display lights up and seems to work fine. It suns through the syatem che...
2006 Toyota Corolla S 1.8L MIL Lamp on VIN: 1NXBR32E06
customer is trying to get his car smogged, (california)... vehicle came in with p0420, (cat system efficiency below threshold bank 1). found an exaust leak between manifold to cat donut gskt, replaced it. replaced downstream HO2 sensor but code returns. exaust... Trouble codes: P0420
2005 Volkswagen Jetta GLS TDI 1.9L No Start, Cuts out VIN: WVWSR21J45
Greetings to all. This vehicle has used far too much of my time and is causing hair loss. Customer drove through a flooded roadway, I beleive the water was at approx 1 ft. deep, after going through the car stalled, restarted drove a few feet stalled again and... Trouble codes: P0321, P0322, P0674, P2564
2005 Volkswagen Beetle GLS 1.8L Convertible top VIN: 3VWCD31Y25
This is informative only I have fixed this vehicle.. This bug does not have the flaps for the convertible top , Vw discontinued use of them in 2004 they were A HUGE PROBLEM... I checked component locator and wiring diagrams and it shows the position sensors i...
2006 Volkswagen Jetta TDI 1.9L oil leak VIN: 3VWDT81K26
There is a pretty good oil leak looks like from front crank seal area, there is also wetness and oil at hose to turbo, i removed oil cap with engine running and there is some pressure if i leave cap loose it kinda just bounces around from pressure if that is a...
2007 Volkswagen Passat 2.0T 2.0L Compressor VIN: WVWXK93C87
Hello everyone! First and foremost, thank you all for taking the time to read this and giving me some input. This little VW is giving me fits. So it originally came in with some noise and intermittent operation. Checked for power and ground, everything looked ...
2002 Volvo V70 X/C 2.4L MIL Lamp on VIN: YV1S758D42
We installed a used engine with 70k on it. We did not clean the block to transmission surfaces. I have installed redundant ground cables. engine to trans, trans to body, and body to engine. Voltage drop tests good on all grounds. modis lab scope looks good exc... Trouble codes: 5200 (engine rpm signal)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2005 Acura MDX 3.5L 5th gear
Sorry for the delays I r&r the trans again and installed a new rear trans case and it fixed the problem thanks for the help
2003 Audi Allroad Quattro 2.7L ride control VIN: WALYD64B63
Thanks to all who replied to my request on repairing or replacing the air suspension line. I had to purchase the complete line from the Audi dealer but I only used about two feet of it.I found a small coupler that worked in connecting a new piece. Thanks muchk...
2006 BMW 325xi 3.0L No Start VIN: WBAVD13536
I want to say thanks for all the help on this fix. The car ended up needing a steering column.I did not see any info on alldata for this but a tech at bmw told me the column causes this problem. I replaced column. The column is fairly easy to do. Sent car to b...
1994 Chevrolet S10 LS 4.3L Poor Idle Quality, Misfire, Low Power VIN: 1GCDT19W0R
Very low running compression. With an adjustable spark tester (air gap mimics plug gap in running engine) on the ignition wire and the compression gauge installed, there is little more than 25 PSI on all cylinders. Raising RPMs brings this to about 50 - 75 PSI...
1994 Chevrolet Lumina APV 3.8L Fires, then dies
Well it works...after many replies it did turn out to be a passlock problem of sorts. Many suggestions were related to this system even though the van was not so equipped. after eliminating other options suggested such as ignition switch, cam and crank sensors...
1998 Chevrolet Tahoe LS 5.7L Unknown VIN: 1GNEK13R6W
Turned out to be a bad exhaust Valve on cylinder #3, Seems to be a poorly rebuilt engine, customer declined any further repair , will update if i get to tear it apart, thanks for all the help
2006 Chevrolet Silverado 2500 HD LT 6.6L fuel prime VIN: 1GCHK23D86
Tthe filter housing seems to have done the trick but then the water pump was leaking and that was a fun one HAHAHAH not to bad if you had done one before and the flywheel holder helped a lot too.
2003 Dodge Ram 1500 SLT 4.7L Mechanical VIN: 1D7HU18NX3
Got some good replies this engine is a nightmare did have to pull timing cover to access tensioner rocker went in no problem alla is well
2005 Dodge Ram 3500 SLT 5.9L Poor Idle Quality, Surge, Stall VIN: 3D7MR48C25
Well, it turned out to be loose high pressure connector nuts. Went through and tightened them on all of the injectors, then repeated the volume check of the return line. It now flows 190 ml in 60 seconds at an idle where we had almost 300 ml in 20 seconds befo... Trouble codes: P0251 (CP3 Pump Regulator Control).
2005 Dodge Ram 3500 SLT 5.9L Cuts out VIN: 3D7MS48C65
The customer has not come back. I bleve he is getting the Tran repaired at this time. Thanks for all your help
2007 Dodge Sprinter 2500 3.0L Engine VIN: WD8PE74517
Well the problem is not fixed but I concur with all 3 replies that the engine has severe blowby. A request to our own technical center as well as to our engineers could not produce what the pressure would be if too high. Basing that the engine has over 500,000...
2008 Dodge Sprinter 2500 3.0L engine block area VIN: WD0PE84548
Thank you for the help. We used our borescope to find oil pooling under turbo area. We priced the oil cooler and labor to replace. The client declined repairs today as they needed the vehicle. Hopefully to reschedule the repair in a few weeks.
1999 Ford F-550 Super Duty XL 7.3L Surge VIN: 1FDAW57F8X
Well thank you guys for guiding me in the right direction, I was kind of lost, because we did clean the thank and it was really very dirty, but we did no know about those little filters inside the assembly on the fuel thank that some of you guys mention, so we...
2000 Ford F-350 Super Duty Lariat 7.3L No Start VIN: 1FTWW33F6Y
Thanks for the help. Found good youtube video that showes the install of new injector cups (fuel in coolant system)search.. The customer does not want to fix there rig at this time so when i get to it i will up date fix for this problem, but i'll bet that the... Trouble codes: P0303, P0603, P1140, P1391, P1393.
2000 Ford Focus ZTS 2.0L timing belt VIN: 1FAFP3831Y
Thank you so much for all of the replies. I appreciate your time and knowledge. 24 of you said to buy the tools. 15 said you could make marks and not loosen cam bolts. Well, I bought the tool kit at O'reillys for $25. OTC number 6486. The reason that I was hes...
2001 Ford E-350 Econoline Club Wagon XLT 7.3L Hesitation, No Power
Guys we are still working on this but I wanted to thank those that tried to help, We did a contribution test & all injectors check ok, we had replaced lift pump & pressure regulator, I suspect the control module but cant prove it yet Trouble codes: P0731 (incorrect gear ratio 1st gear), P0732 (incorrect gear ratio 2nd gear).
2006 Ford F-350 Super Duty XLT 6.0L low power when cold VIN: 1FTWW31P46
I am going to call this one fixed, even though I have not started the work on it yet. I was pretty sure the truck needed injectors and that is what almost everyone said so we are doing them later this week. Thank you to everyone who took the time to help me ma... Trouble codes: P0671.
2008 Ford Crown Victoria Police Interceptor 4.6L turn signals VIN: 2FAHP71V78
Thanks for all the help, special thanks to ken,tim,william,scott,michael, john hit on the head one of the bolts going to the cage was touching the wire loom going to the rear lighting. THANKS FOR ALL THE HELP William
1996 GMC Sonoma SLE 2.2L battery and alternator VIN: 1GTCS1943T
Replaced the alt ,that took care of that part. Put my 1816 bulb between the - batt post and cable so I could see when the drain went away and started to disconnect wires,got to the junction block on left fender removed big red wire and light went out then re...
1998 GMC K1500 Sierra SL 5.7L Poor Idle Quality VIN: 2GTEK19R8W
I apologize for the delay in posting this fix. After a bit of a hiatus from this vehicle, we were finally able to get back to it with a fresh look at things. Very close monitoring of the engine crankshaft sensor signal during the warmup period revealed the v...
2001 GMC Sierra 2500 HD SL 6.6L tcm VIN: 1GTHK29171
bit the bullet convinced the customer to install reman for a 2001.i will eat the labour cost and refund the cost of the used transmission.thannks guys.
2007 GMC Yukon XL 1500 SLT 5.3L Fuel Filler VIN: 1GKEK16317
2001 Honda Odyssey LX 3.5L transmission VIN: 2HKRL185X1
we replaced the transmission and finish just last monday oct/1 we still waiting to see if code doesn't come back, thanks to every body for their imputs.
1991 Jeep Cherokee Laredo 4.0L clutch VIN: 1J4FJ5856M
Yes pilot bearing was the issue Found out later the clutch assembly was replaced but now the rest of the story.they could not get pilot bearing out so the left it after to pull if with a slide Hammer go figure
2000 Jeep Grand Cherokee Laredo 4.0L Instrument Cluster VIN: 1J4G248S1Y
It was the PCM. Thanks for all the responses! The advice of disconnecting each unit on the network until I found the culprit was valuable. What made this difficult was that I had disconnected the battery. When I did that, the PCM reset and was no longer messin...
2006 Jeep Liberty Sport 3.7L esp VIN: 1J4GL48K76
Thomas was dea on with this, bcm took care of it all. Do not know exactully what was wrong inide of it. Also noticed esp switch was not working and now is, customer says with just a short test drive vehicle is driving much better. Thanks for the help
2005 Kia Spectra EX 2.0L Surge, High Idle VIN: KNAFE12105
The part we replaced was a IAC not a TPS (had to many things on the to do pile I guess) It made no change according to customer... I drove this car for the weekend and did experence their concern... Scanned It and found IAC out of spec... Replaced It and all i...
2005 Kia Rio 1.6L Mechanical VIN: KNADC12565
Thank you all for your responses. We switched ignition wires #1 & #4, and drove the vehicle for 20 miles. The P0304 code did not come back. We tried a "beautifully made" aftermarket coil pack, Then the engine thumped, when we did brake torque test? We then che...
1995 Land Rover Discovery 3.9L abs VIN: SALJN128XS
Thank you all very much for your help. .Turns out I shot myself in the foot. My diagnostic connections were ill fitting on the module pins causing the differing signals. The actual malfunction was the abs load relay. It was stuck on. I replaced the relay and a...
2001 Land Rover Range Rover SE 4.6L car cranks by it self VIN: SALPL16491
thanks for all the help it was great the fix was to replace fuse box found it full of coolant and it was badly coroded all electrical issues now gone no head gaskets needed had to replace thermostat and radiator still have to replace o ringd on heater core car...
2007 Lexus LS460 L 4.6L Dual Climate Control VIN: JTHGL46F17
My bad, I thought I did close this request. The uneven cooling output on the center vents was caused by low charge in the system. Valve at low side leaking. The solar sensor fault was disregarded as this appears normal fault code in workshop environment. Than...
1994 Lincoln Town Car Signature 4.6L No Start VIN: 1LNLM82W0R
well i think i fixed this car by replacing the power relay.customer said that he would let us know in a week or two bif it is fixed. thanks for all of the replies.
2002 Mazda 626 ES 2.5L Poor Idle Quality, MIL Lamp on VIN: 1YVGF22D92
well guys it wasn`t a thriller like the singer but my mini scanner sent me to injector as compression n spark plug was good cold r hot,it was a tricky one as it ran so good cold r the first fifteen minutes.but afew of u`all were correct on injector but the tes...
2010 Mercedes-Benz Sprinter 2500 3.0L Poor Idle Quality, Misfire VIN: WDZPE7CC4A
Engine Control module was not at fault in this case. Suspect an internal mechanical failure but client did not want to perform any major repiars at this time. Trouble codes: 10E70, 15A50, 15600.
1989 Nissan Pathfinder SE 3.0L intake/head gasket VIN: JN8HD16Y1K
Sorry it has taken so long to close this one. This has been worked on on the side and just haven't had much time to work on it. I sincerely appreciate all the help and suggestions. Looks like I will be replacing the engine if I can find a good price. More than...
2001 Nissan Pathfinder LE 3.5L Cuts out VIN: JN8DR07Y71
hi guys i replaced mass air flow with after market twice i bought a oem from nissan the vehicle work ok thank to all the help guys have a nice day
2001 Nissan Altima GXE 2.4L starting VIN: 1N4DL01D41
Hi Guys, Thanks for all the help...The general consensus was that my only option was to replace the engine control ECU and then program the keys, I did not have access to any higher level scan tool that might allow the existing ECU to be reprogrammed. Unfortu...
2004 Nissan Quest SL 3.5L nats code VIN: 5N1BV28U54
Thank you David and Andrew for the code,van started right up.Its great to have the help from the techs on IATN.
2005 Nissan 350Z 35th Anniversary Edition 3.5L Clutch pedal VIN: JN1AZ34D25
Thanks for the replies. Decided to order a new clutch, remove the one from the car and compare the two. The new pressure plate diaphragm fingers were 5 mm higher than the one in it. Installed new clutch. Pedal was a lot better but not perfect. Drove it home an...
1991 Oldsmobile Cutlass Ciera S 2.5L Misfire, backfire, hardstart VIN: 2G3AJ14R1M
The final 2 pieces of the puzzle were a bad circuit board in the ecm I was able to solder (hard/no start issue) and a faulty ignition control module (off idle consistant misfire, ocassional backfire). Thanks to everyone for all the ideas and help!
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