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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 6, 2014
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models
Help Request Answers
2004 BMW X5 3.0i 3.0L engine VIN: 5UXFA13584
Should have never let this one in the shop. Car came in with a broken valve spring on #2 cylinder. Pulled head, had a reputable machine shop clean the head up and milled .010" off. Used the properly sized gasket kit from BMW and reassembled per procedure. Ca...
2007 Cadillac Escalade 6.2L Unknown VIN: 1GYFK63827
GM techs, need some help please. Have 6L80 transmission setting code p2723 - clutch pressure control solenoid 5 stuck off. Cleared that code, then code p2714 set pressure control solenoid 4 stuck off. Cleared that code and then set code p0756 shift solenoid 2 ...
1998 Chevrolet Tahoe LS 5.7L ABS Module VIN: 1GNEK13RXW
Hi; another mystery similar to 95 Buick LaSabre data link connector. Customer had ABS light on solid. Scanned for and found codes C0281, C0237, Co223 and C0 222, pulled rf wheel and wss. Ohmed sensor and found resistance was out of specs. Replaced wss with new...
2002 Chevrolet Tahoe LS 5.3L Poor Idle Quality, Cuts out, Stall, Misfire VIN: 1GNEK13Z52
this is a truck that im trying help a good freind out on i had to hv shoulder surgery so cant actually look at it. the truck missfires on cyl 3 and 5 and is hard to start wont idle. he removed the exsahust and runns good but the cats dont seem be stopped up so...
2007 Chevrolet Aveo LS 1.6L MIL Lamp on VIN: KL1TD56687
Hi all in IATN land. Thanks for taking time to read this post. Have code #P0131 that turns the MIL on intermittently. Fuel pressure and volume are spot on. have checked for vacuum leak hot and cold. Freeze frame data shows 17* air temp and engine at idle but a... Trouble codes: P0131
2007 Chevrolet Malibu LT 3.5L Mil Lamp VIN: 1G1ZT58N27
Hello iATN techs, Tested per repair information by powering a test light and observing MIL commanded on with scan tool; test light would illuminate as it should (also confirmed that the LED for the MIL was functional). Confirmed PCM ground circuit brn/wht wir...
2001 Chrysler Town & Country LX 3.3L fuel gauge VIN: 2C4GP44311
Customer complaint was that the van runs out of gas before gauge says empty. Scanned it and gauge was reading 3/8 of a tank, BCM data showed fuel level of 8.0 gal and fuel level sensor voltage of 5.40V. PCM data showed a fuel level of 4% and fuel level sensor ...
2004 Chrysler Town & Country LX 3.3L Wiper VIN: 2C4GP44R54
Greetings fellow technicians, This town and country has an intermittent wiper operation. I have narrowed it down to no ground being applied to the coil of the front wiper on off relay. I can see the switch is reporting correctly to the BCM which in turn commu...
1993 Dodge W150 5.2L No Start VIN: 1B7HM16Y5P
This truck is flooded.My problem is that after the key is released from the cranking position the injectors and coil will light up continuesly.With two noid lights it looks like a Christmas tree but only while the key is released,while cranking spark and injec...
2001 Dodge Ram 3500 5.9L Clatter & slight sag VIN: 3B6MC36751
When driving in any gear or any speed,a loud clatter(like a very cold diesel on start-up) is heard on light throttle pressure.A slight sagging sensation/power loss is noticed at the same time.Getting firmer into throttle will cause noise to stop.Boost pressure...
2005 Dodge Sprinter 2500 2.7L E flasher/turn signals VIN: WDYPD64495
Have repaired quite a few of these units. It may malfunction once every few days. I know when it is about to act up by the way the E-flasher acts. If I engage it AND it starts to short cycle or the relays simplies "buzzes" the flasher will not light up or func...
2008 Dodge Avenger SXT 2.4L Power Window VIN: 1B3LC56K68
driver front window not working
1988 Ford E-350 Econoline Custom 7.5L Excessive Emissions, Poor Idle Quality, Cuts out VIN: 1FDKE30GXJ
I am a new employee here and was thrown this on my first day. Another tech has worked on it for about six months and cant figure it out either. We have collectively replaced and or tested every available part and system related to engine performance and the on...
1995 Ford Taurus SHO 3.2L Poor Idle Quality, Surge, Stall, lack of power VIN: 1FALP54P2S
We got this low mileage SHO in for stalling at stops after about 10 minutes of driving. After a short test drive we found that it would lack power and surge when trying to accelerate and also had pinging like a car with run on after shut off while trying to ac... Trouble codes: 124 (tps volts higher than expected), 212 (loss of ignition diag monitor input to pcm), 215 (coil 1 primary circuit fault), 216 (coil 2 primary circuit fault), 217 (coil 3 primary circuit fault), 645 (incorrect 1st gear ratio)
2004 Ford Mustang GT 4.6L Rack and pinion VIN: 1FAFP45X04
car came in for gringing ft brakes ferformed above svc. when done car had no power assist and no power steering (hydroboost brakes) fluid low added low again same problem raised car to ck for leaks found both i.t.r.e. bellows obout to burst. Car had no issues ...
2010 Ford E-150 4.6L frame VIN: 1FTNE1EW2A
Good day folks I have a 2010 E150 delivery van here that has a very pronouced rattle going over bumps. When it first came in, I found that the exhaust had been bent up and hitting the bottom of the cargo box. I inspected the shocks and found the rear shocks...
2014 Ford Explorer 3.5L Key fob VIN: 1FM5K8AR7E
QUESTION,, Police Exployers fleet vehicles did not come with remote key fobs, According to Ford these vehicles did not come with a receiver, can one be added & remote key fob programed. thank you Joe A
2007 GMC Acadia SLT 3.6L Misfire, Shutter VIN: 1GKER33787
Hello every one hope your day is going well, the problem seems simple but we all know that is not so in this business, the vehicle symptoms are as such low speed low load misfire/shudder no codes present no misfire displayed on data, any help or previous exper...
2004 Honda Accord EX 2.4L Mechanical VIN: 1HGCM56864
The customer came in with a check engine light on and the code came up P2647 ( Rocker Arm Actuator Stuck on Bank 1 Variable Valve Timing Electronic Control With Single Oil Pressure Circuit ) When we have replaced the parts and drove the car right away after ...
2004 Isuzu Rodeo S 3.5L No Start VIN: 4S2DM58YX4
Vehicle towed in, diagnostics performed for no start/ no spark. Computer deemed to be at fault. Procured a new/used unit and was unable to locate a TechII with an Isuzu card so that the replacement unit could be mated to the Immobilizer in the vehicle. Sent th...
2008 Jeep Wrangler Unlimited Sahara 3.8L everything VIN: 1J8GA59198
Ok here's the story, I will try to keep it short. Vehicle was on a hunting trip and heater and pwr locks quit. It was cold out so vehicle was then parked. When they came back to it, the battery was toast, and a new one was installed. The only things electrical...
2001 Kia Optima SE 2.4L belt, charging VIN: KNAGD12671
Vehicle came in with a failed alternator tested out bad so we replaced it. two days later vehicle returned with alternator belt on passenger seat and a failed alternator, replace under warranty with new belt. Vehicle is back 2 months later same issue. Checked ...
2009 Kia Rondo EX 2.4L MIL Lamp on VIN: KNAFG52809
Hoping someone has run into this situation before. Vehicle came in for headlight bulb, replaced bulb. while in shop, 10 minutes with light on, battery went low and had to jump, P0107, map sensor issue, MIL on. cleared code. Sold battery to customer as battery ... Trouble codes: P0107 (MAP sensor voltage below threshold)
2004 Land Rover Range Rover HSE 4.4L Transportation Mode VIN: SALMF11404
Thus vehicle came to us with inoperative wipers and various othe electrical faulures. I seemed to remember something about a "transportation mode" on these vehicles. It does give info to my Autel MaxiSys that the vehicle is in transportation mode. The scanner ...
2006 Land Rover Range Rover Sport HSE 4.4L abs module VIN: SALSF25426
This car came in for normal service the customer said that randomly he would get a message air suspension inactive.We found a code in the ABS ECU C1A96-64 brake light switch circuit-signal plausibility failure I should mention he was also complaining that it w...
1988 Mazda B2200 2.2L Cooling Systems VIN: JM2UF1130J
i have this mazda giving me trouble with warming up. it wont warm up even after the thermostat causing low heat. the highest temperature reading is on the inlet hose to the heater core at 153 deg f the outlet hose has 147. the inlet hose to the radiator is at ...
2001 Mazda Protege ES 2.0L pedal VIN: JM1BJ22631
The left rear caliper was replaced for a leaking condition. All the fluid had been depleted. Pressure bleeding has been performed twice since the reapir. The pedal still goes to the floor. The brake apply, but the pedal is soft. Our Verus does not list an ABS ...
1992 Mercedes-Benz 500SEL 5.0L Poor Idle Quality, Cuts out, Stall VIN: WDBGA51E2N
Greetings fellow Technicians, This Mercedes will run rough and stall out intermittently. The complaint has been present for more than a year.Each time the car comes in on the hook it starts up and runs fine.The customer states if he waits 1/2 hour the car will...
2003 Mercedes-Benz S55 AMG Kompressor 5.5L long cranking VIN: WDBNG74J83
Hi to all.I have this car 2003 Mercedes S55 V8 5.5L customer complain intermittent die, restart no problem . With TDC PO335 crank sensor. Try all day no problem .Recommend crank sensor and Updates ECU.After replace new sensor, car took a long times , long cran... Trouble codes: P0335
2001 Nissan Frontier SE 3.3L p1491 VIN: 1N6ED26T21
I feel lost. got a p1491(vacuum cut valve bypass valve) code. watched the evap system psi voltage on scan tool. 3.4v. Started engine, stayed at 3.4v. An article on underhoodservice.com ( san_frontier_or...
2004 Nissan Frontier XE 3.3L Vss VIN: 1N6ED27T64
Hi iatn techs, I am working in a 2004 Nissan frontier, this truck has dtc po 500, vss signal. customer took the truck to a mechanic shop for diagnosis, so the tech. there ran a wire from the cluster to pcm, I don't know why, two days later the check engine lig...
2009 Nissan Altima Hybrid 2.5L Startering VIN: 1N4CL21E59
This hv car came in a towing truck customer states that the car won't starts when starts botton is pressed the ready sing comes on for about 2 seconds e goes off ,i was able to get it running once for about 2 minutes after that it shot off by it self . I did t...
1997 Toyota Camry CE 2.2L Unknown VIN: 4T1BG22KXV
When stepping on gas pedal this car will try to change lanes. The same as when I let off on the gas. The rack is new along with lower control arm bushings and tie rods. The position of the steering wheel will change by a quarter turn.Have also checked subframe...
1999 Toyota Camry LE 3.0L all accessories VIN: 4T1BF28K6X
Customer states cannot turn car off.Turn off ign key,engine stops but accessories stay on(windows,a/c,radio,dash warning lights).All this stays on with ign switch unplugged.Removing the integrated power relay cuts of most accessories but a/c and dash warning l...
2000 Toyota Avalon XL 3.0L Poor Idle Quality, Hesitation VIN: 4T1BF28B4Y
Car came in and hooked up scanner and took for test drive. Car wont rpm. On test drive I had foot too floor and couldnt get over 20 mph. BOG CITY. This one is confusing. Checked for codes NONE. Fuel pressure if fine, timing belt appears to be in perfect time b...
2005 Toyota 4Runner SR5 4.0L Misfire, MIL Lamp on VIN: JTEBU14R85
The Customer brought in her vehicle with the check engine light and other lights with the traction control and engine performance. We scanned the computer and found code P0304 cyl. 4 missfire. We pulled the plugs and noted it needed a tune up. After replacing ... Trouble codes: P0304
2009 Toyota Sienna XLE 3.5L warning lights VIN: 5TDZK22C69
Problem started with a dead battery. After the battery was charged, key on engine off,the Check engine, TPM, Airbag and cruise lights will flash continuously and they continue to flash with the engine running. The only thing that doesn't work while the lights ...
2004 Volkswagen Passat GLX 2.8L Mechanical VIN: WVWWH63B74
hello vw gurus,,,got this passat that came in making alot of rattling noises esp on start up...pulled valve covers..and chain tensioners were missing plastic guides and marks on on one cam was off a tooth...i went ahead and replaced the tensioners,seals,v.cove...
2010 Volkswagen Routan S 3.8L autostick does not activate VIN: 2V4RW4D12A
trying to determine why autostick system does not activate when the lever is moved left/right the trans remains in D no manual shifting allowed/activated

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 BMW 320i 2.2L cooling VIN: WBAAZ27201
it apears that this engine does not have a electric thermostate,M42. as the engine runs ok and eng check light does not come on customer happy to drive as is,thanks all
2003 BMW 530i 3.0L immobilizar
Thanks To everybody who took is time to reply. The fix is perform coding in instrument cluster
2003 BMW 525i 2.5L Radio VIN: WBADT43433
Customer has not returned to have us look at the radio problem. Thanks for all your help, sorry that i dont have any new info.
2005 BMW 745Li 4.4L No Start, Cuts out VIN: WBAGN63565
i am sorry to say, but this car is going to the dealership. I found that the small e box fan in the control unit box on the passenger front under cabin filter was out. Causing the ecm to overheat and shut down the car. Kinda like how a labtop will shut down if... Trouble codes: 2EFE, 2A58, 2D72, 2F71, 2E95, 2F45.
2007 BMW X5 3.0si 3.0L no communication VIN: 5UXFE435X7
used bmw battery also BMW stated you have to use the same type of battery that's in there which was a agm type, you could switch to a lead type battery but it would have to be reprogramed, also I found the fuse which was blown replaced that and all is well Th...
2009 BMW X5 xDrive48i 4.8L no acceleration VIN: 5UXFE83559
Thanks to Gerald, Andy and Vladimir, hit it on the head, there was a harness repair kit for throttle body, when we first called bmw regarding a repair harness they wanted to sell us the whole engine harness, it wasn't till after much questioning that they said... Trouble codes: 11757 (2ded), 11570 (2d32), 2CF8, 2DF9, 2CFA, 5F77.
1998 Chevrolet Camaro Z28 5.7L Clutch Hydralic System VIN: 2G1FP32GXW
I would like to thank everyone for your replies and help on this one. Indeed there was no longer a hydraulic problem or clutch issue with this vehicle. The customer took the vehicle to a third party to get another opinion, and indeed they agreed there was an...
2006 Chevrolet Colorado LT 2.8L MIL Lamp on VIN: 1GCCS19886
After doing a engine oil flush it still throw the code at start up. I replaced the solenoid and it took 10-15 miles for it to fail but it still did fail. After that the owner did not want to invest in the next step and is driving it that way. It runs great ... Trouble codes: P0017 (CKP - CMP Cam - Crank Correlation).
2006 Chevrolet Cobalt LS 2.2L Poor Idle Quality, Misfire VIN: 1G1AJ15F96
Valve timming was off on this car. Customer could not afford to have it fixed at this time. thanks for the help. Trouble codes: P0300.
2002 Chrysler Town & Country LXi 3.3L Pedal VIN: 2C4GP44342
After replacement I decided to open up the HCU as i wanted a difinitive answer on this vehicle. One of the dump valves was physically locked open and would not move even with extreme motivation. I did not take the time to remove the valve, however pretty confi...
1991 Ford Ranger Custom 2.3L performance VIN: 1FTCR10A2M
thanks to everyone who replied and offered the help, as I noted before the customer had been playing tech and it took us some time but did in fact find the problem.. customer had replaced the fuel pump himself (he neglected to tell us this of course) well when...
1995 Ford Escort LX 1.9L Injector pulse VIN: 1FASP14J0S
Thanks for all the replies! I have not fixed the problem though. After replacing the fuel pump the pressure holds, I scoped the cam and crank signals. The cam signal does not show up for a few seconds while cranking, but then starts as soon as it does. I repla...
2009 Ford F-150 XLT 4.6L Tach Inop VIN: 1FTRX12869
It was the instrument cluster. I was able to get a used one and had to reprogram the security and mileage.
1993 GMC K2500 Suburban SLE 7.4L transmission VIN: 1GKGK26N4P
This was a case of "Don't assume it's all caused by one problem". This truck had at least three. There was a body ground under the hood that had been cut (back in harness 12") and moved to the engine. This caused a potential difference to the computer and su...
2003 Honda Civic EX 1.7L Misfire, MIL Lamp on VIN: 2HGES25743
Hi to All: We adjusted the valves and cleaned EGR passages, 1&3 clogged. Runs great no codes. Thank you to Yannick,Robert,Greg,Bob,Derrick,Jorge,John,Raj,Michael,Scott,Duc,James,Igbal,Brian,Joseph,Jose,Gordon,Richard and Joe for your responses. Trouble codes: P0301.
2006 Honda CR-V LX 2.4L steering VIN: JHLRD68546
Normal for this car. My tech (who opened this request) about tore his hair out trying multiple different things. We had just (well, about two weeks ago) done a bunch of front end work to this vehicle, so we were very motivated to fix it. We had shifted everyth...
2009 Lincoln MKX 3.5L Unknown VIN: 2LMDU88C79
after a few more test drives and a transmission guy we finialy got a code for number 6 misfire replaced coil and plugs no more chatter on hills
2011 Lincoln MKT EcoBoost 3.5L Misfire, MIL Lamp on VIN: 2LMHJ5AT3B
well this one got sent to the dealer. I was told that they replaced the Oxygen sensors on the misfiring bank and that cured it. I'm not so sure about that but thats all i have. Thanks for the many replies. I appreciate it. Trouble codes: P0300, P0301, P0302.
2004 Mercury Sable GS 3.0L No Start, Poor Idle Quality, Stall VIN: 1MEFM50U74
Well we got this one fixed. A lot of you suspected the Mass Air Flow, when we tried starting it with it unplugged it seemed to help, that is why we tried a new one. That didn't solve the problem though. It did seem to help however. We decided to pull the upper...
2006 Nissan Quest SL 3.5L Water Pump VIN: 5N1BV28U56
Well this one is fixed. After finding out that a the car had been running hot more than once,my cust. opted too go with a low mileage used engine and all is well. I would like too thank everybody that took the time to give there input, once again you are all "...
2004 Pontiac Grand Am GT 3.4L Excessive Emissions, Poor Idle Quality VIN: 1G2NW52E74
Thanks to all, the vehicle was taken from the service dept. and sold as is. I assume it will return with a rich code eventually, but its out of my hands for now.
2003 Saab 9-3 Arc 2.0L No Start VIN: YS3FD49YX3
Thanks for all the replies. The fix was a new ignition switch assembly. Once I got it out, I found that something had been spilled on it. New switch solved the no crank problem and the stuck in on position problem. Trouble codes: B3981 (PDM missing on bus or not added.), B3700 (Stalk sw. interval not correct).
2005 Toyota Prius 1.5L starting VIN: JTDKB20U25
thanks guys .the problem was the hv voltage battery with a low voltage 160V.. thanks caroline for the much needed info...funny thing though the ecu never came up with a code for hv battery low voltage.. about the off board charger..which one do u recommend. be...
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