× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for May 22, 2012
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for All Makes and Models
Help Request Answers
1993 BMW 525i 2.5L Engine
The car came in the workshop making big knock sound when driven. The car was driven over the hump at speed then the knock/thump was heard. 2 knock sensor error were retrieved. Opened the sump, goldish/ brass like metals found in the sump/oil pan and in oil pum...
1994 Chevrolet S10 LS 4.3L Hesitation, Cuts out, Misfire VIN: 1GCDT19W0R
Vehicle has poor driveability when cold. At cold idle, there is a slight misfire. When accelerating from a stop, there is almost no reponse from the accelerator pedal until the vehicle speed increases. Engine cuts out and stumbles continuously until cruising s...
1997 Chevrolet K1500 4.3L No Start, Poor Idle Quality, Stall, Misfire
hello fellow techs This one was towed in from another shop. They replaced fuel pump and tank for a no start. truck would only run with accelerator pedal depressed half way and stall. checked for codes p0108 map sensor code. i had 5 volt reference. good groun... Trouble codes: P0108
1999 Chevrolet Astro 4.3L oil consumption VIN: 1GNDM19W2X
I have a 1999 Astro van with the 4.3L that is buring 2-3 quarts of oil between oil changes. There are no leaks(thats amazing I know) and I replaced the PCV valve last time it was in for an oil change just as a cheap guess to start with. The customer will be ...
2001 Chevrolet Corvette 5.7L speedometer VIN: 1G1YY22G21
I would like to thank all who reply in advance... I have a vehicle here which has had the speedometer recalibrated for larger wheels. The customer has reinstalled the factory wheels on this vehicle. Now... I need to recalibrate the speedometer back to factory...
2008 Chevrolet Aveo LS 1.6L Cuts out, Lacks Accleleration VIN: KL1TD566X8
Thanks in advance for any help you can throw my way. Customer stated car sputters and runs poor at times and has no acceleration when stepping on gas pedal . She shuts vehicle off & restarts then it works okay . Transmission light comes on on dash. We performe... Trouble codes: P0705
2003 Chrysler PT Cruiser GT 2.4L driveability VIN: 3C8FY78GX3
Customer complaint on this vehicle was that at times it surges and gets to the point it almost not driveable. Never completely stalls out. It had p0300, p0201, p0202, p0203, p0204, p0300 and p0344 in it initially. I cleared them and had them drive for a few da...
2001 Dodge Grand Caravan Sport 3.3L Compressor VIN: 1B4GP44301
Hey IATN, This van has been keeping me up at night for awhile now! Originally, the van came in with a blown A/C fuse. We replaced the fuse and told them to drive it a bit and see what happened. The van then came back again with a blown fuse. The van then came ...
2005 Dodge Magnum SXT 3.5L Hesitation, Stall, MIL Lamp on, Hard Start Cold VIN: 2D4FV48V55
Magnum came in with slight hesistation and an egr code and b1 lean. We replaced egr, upper intake gaskets and egr tube gasket. Car came back with just lean code p0171. Changed O2's (lazy). P0171 and P0174 showed up. Changed map sensor because map and barometri... Trouble codes: P0171, P0174
2009 Dodge Journey SXT 3.5L tpms light on VIN: 3D4GG57V39
Well, I have looked in Mitchell and AllData annd can not find this info anywhere. I have a code C1503 and C1504 both for tpms internal fault. Code description calls these sensor 3 annd 4. Nowhere,that I can find,does it say what positions are where. Does anybo...
1994 Ford E-250 Econoline 5.8L Cuts out
Hello fellow techs, Customer just purchased this van with a few problems. brought in for transmission repairs as it was slamming into reverse, check engine light was on and running poorly. original owner claimed ignition distributor was replaced but needed t...
1994 Ford E-250 Econoline XL 4.9L Unknown VIN: 1FTFE24YXR
We acquired this one from a trans shop, it is a no shift.default is third gear. Pcm does not command a shift. anyway, I forget what voltage I should see on the signal return wire for tps, map, trans range sensor etc with respect to engine or battery ground. Th...
2006 Ford Ranger XLT 3.0L Poor Idle Quality VIN: 1FTYR14U16
I hope someone can help me with this thing so I can leave for my fishing trip on time. OK this thing has a rough idle some times worse than other times but definately not smooth if you watch fuel trims they are a little higher on the left bank 11 and rt bank 0...
2008 Ford Explorer XLT 4.6L injectors VIN: 1FMEU73818
Customer complaint is loud tapping noise in eng. The Injectors are very noisey 4 of witch louder than others. Just wondered if anybody is replacing injectors due to noisy condition.I have never done so, but they are loud enough it would bug me.Vec drives out g...
1999 GMC K1500 Suburban SLE 5.7L Transfer Case VIN: 3GKFK16R6X
When driving different speeds, but between 1200 and 2200 rpms typically, a roaring noise may occur. If the throttle is worked up and down, the roaring noise goes up and down. The roaring noise reacts very quickly to the throttle. The engine or vehicle speed do...
2003 GMC Envoy SLT 4.2L not cooling VIN: 1GKDS13S53
Help, this one has me stumped. when the vehicle is started in the morning the a/c works and cools. 25 low, 150 high. when you accelerate the pressures go haywire. first the pressures go to 45 low, 300 high. let off the gas and the car wants to stall and often ...
2004 GMC Sierra 1500 Denali 6.0L vent VIN: 2GTFK69U64
good morning everyone, customer came in complaint with it not blowing at all in the center vents, it will work fine on floor and defrost. is there a blend door or motor that have a problem . it is all digtal controls thanks
2005 GMC Envoy XL SLE 4.2L Poor Idle Quality VIN: 1GKET16S65
This vehicle came in about a week ago (Customer just purchased from a private party about a month ago it did not have this code then) with a P0017 cam and crank correlation error. We replaced the actuator and it came back with the same code. Went threw Mitchel... Trouble codes: P0017 (Cam and Crank correlation error)
2000 Honda Accord EX 2.3L Cuts out, MIL Lamp on VIN: 1HGCG6672Y
The customer complaint was mil on, long crank time for start up, engine runs rough. When i went to test drive it i immediately turned around and came back. It was like the fuel shut-off started at 2200 rpm. I went to check codes and had no communication with t...
2002 Honda Passport EX 3.2L Excessive Emissions, Misfire, MIL Lamp on VIN: 4S6CK58W92
This ones got me,when warm in closed loop above 2000 rpm cel comes a flashing and bank one shuts down.O2 readings bank 1 sensor 1 over 930 mv,fuel trims at -25% to -35% TOO RICH.I have read all the fixes in the archives and have checked o2s too make sure there... Trouble codes: P0300, P0132
2005 Honda Civic EX 1.7L compressor VIN: 2HGES26705
The compressor will not turn on, I am positive it's because the ecm thinks it's -40 degrees, the ac temp shows -40 on my data-stream, and 32 degrees on the ac switch. My question is where is this data coming from? What sensor is telling the ecm this? I checke...
2008 Jeep Wrangler Sahara 3.8L ABS Module VIN: 1J8FA54188
Jeep came in with soft pedal and no leaks. Replaced Master cylinder with OEM. Bench bled and bled on veh. and bled all 4 wheels. Still have soft pedal. No better than on arrival. Main tech out with shoulder surgery, shop owner in a bind. Can OTC genysis bleed ...
2002 Lexus ES300 3.0L Cuts out, Stall VIN: JTHBF30GX2
Car runs great no misfire after few min. Car makes a noise that sound just like the AC. Engaging paying close attention I was able to hear it coming from intake manifold..and the car cuts out not every time that I hear the sound car dies I install vac.gauge an...
2008 Lexus RX350 3.5L Cuts out, VIN: 2T2HK31U98
Bit of a strange one here. Over last couple weeks customer has complained that about 3-4 times now the vehicle has been doing what i believe is a throttle body issue I'm just hoping some of you have experienced this. He called me from the road, he was travelli...
2008 Lexus LS460 4.6L Automatic AC control VIN: JTHBL46F48
Customer sets AC on Auto. Intermittently on restart system seems to default to a manual mode and a setting of 70 deg. It may do it for us once a day after roughly 10 key cycles. Currently watching powers and grounds with lab scope. Recirculation air door opera...
2000 Mazda 626 LX 2.0L ?trans clutch VIN: 1YVCF22E1Y
new customer to shop brings car in,and has a loud clicking noise/stripped gear sound. from left front when applying torque to driveline. speed is not a factor only torque, can hold brake and acclerate to make noise i suspected the junkyard replacement knuckle ...
1981 Mercedes-Benz 380SL 3.8L Blower amd Temp control VIN: WDBBA45A88
This car has two main problems. The first is the blower motor. It works on defrost and the temperature goes to hot like it is supposed to, but when you put it on Auto lo or Auto Hi the blower does not come on. It will come on if you turn the ac switch to on an...
1993 Mercedes-Benz 190E 2.6 2.6L No Start VIN: WDBDA29D2P
Here is a 1993 Mercedes 190E. I don't work on too many of these. The vehicle has good spark. There is no fuel pressure. I tested the voltage at the fuel pumps and there is battery voltage for 2 seconds when key is turned on and when cranking. This is on both f...
2003 Mercedes-Benz SL55 AMG Kompressor 5.5L ABS/BRAKE light illuminated VIN: WDBSK74F53
Hey guys, Any help would be greatly appreciated. Have Verus with all software. Shopkey/carquest etc but no info on this vehicle for this specific code. ABS computer is setting a c294c (test cable stop lamp output to n10/3 SAM control module). This code does ...
2009 Mercedes-Benz E350 4Matic 3.5L compressor VIN: WDBUF87X59
I 'm pretty sure I know my answer already,but I'd like to throw it out there anyway.With the pressures being equal and as I've read,that there is no clutch for this compressor,I have to believe that I have a faulty compressor.I have checked for codes in both e...
2011 Mercedes-Benz SPRINTER 3.0L Fuel drain Fitting At Sensor On Filter
During a routine service, our technician broke a plastic clip on the fuel drain tube that goes into the sensor mounted on top of the fuel filter at the top the engine valley. This clip is 2 stage and will come loose now that it is beoken. This part is not avai...
1999 Mercury Cougar 2.5L No Start, Stall, No Communication VIN: 1ZWFT61L4X
Customer complaining of the car stalling while driving. He has to sit for a few minutes before it will restart. After is stalls, there is still full power, all lights on dash come on, but it will not crank. I cannot seem to find a security lamp. I was finally ... Trouble codes: B2157, B2156, B2154, B2153, P0750, P7565
2001 Nissan Altima GLE 2.4L Cooling System VIN: 1N4DL01A21
Hi, to all nissan and other tech. This car came in with over heating problem , temp. Gauge read less than half ! but temperature is about 205 degree. Cooling fan wasn`t working at this tem. Noticed when we touch the relay fan start working , so we changed the ...
2009 Nissan Altima S 2.5L Head Gasket? VIN: 1N4AL21E29
Hello everyone and thanks for the help on this altima. I have this 2.5 liter 2009 Altima in for losing coolant and overheating. We filled it up, took over a gallon, and pressure checked it. We cannot find any external leakage on this car. I do not have any mis...
1999 Pontiac Montana 3.4L Mechanical VIN: 1GMDX03EXX
hey guys, i need some help with this one. Customer came in on a hook, no forward or reverse gears, car won't move at all. I dropped the trans pan to see if there were any signs of mechanical failure, but it was relatively clean, except for dirty fluid. So we d...
2006 Saab 9-5 2.3t 2.3L shift knob VIN: YS3ED49G06
I'm replacing the shift indicater plate on this car which simply pops off but will not come over the knob. The knob has a soft plastic front which appears to be removable but I cant get it off and dont want to break something. Mitchells and alldata no help. Ca...
2001 Suzuki Grand Vitara XL-7 2.7L High pressure VIN: JS3TX92VX1
Performed A/C service and found high side rising to 330 PSI and low side at 30 PSI As based on ambient temperature high side should have only been about 170 PSI It seems the A/C system has a clog but im not sure where to start, or what is common with these sys...
1996 Toyota Corolla DX 1.8L Stall, MIL Lamp on VIN: 1NXBB02EXT
Engine had code p0340 , scoped engine to find cam pattern reversed with ghost signal (cylinder firing pattern both above and below ground line)between cam signals. Engine runs but won't idle. Clear cam code and with coil & injectors disconnected you can crank ... Trouble codes: P0340 (Cam sensor code)
2001 Volkswagen Cabrio GLS 2.0L Cruise Control VIN: 3VWCC21V71
I broke down and installed another cruise control module. Again, used per shop owner and customer request. No change. I retested everything...again. Pin 1: "Vent valve". Nothing occurs on this ckt on its own. Pin 2: Vacuum Pump control. Nothing occurs on th...
2008 Volkswagen Eos lux 2.0L passenger rear window VIN: WVWFA71F08
I have searched across the internet and iatn and I have not found anything that could help with this problem. This Eos convertible top works fine but the right rear window instead of going down goes up when the roof tries to operate. It also works opposite if ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 Audi A4 1.8L Radio VIN: WAUWZZZ8D1
I was hoping to try some of the tips that I recived from you but, the customer decided that he will install a new radio. Thanks to all.
1998 BMW Z3 Roadster 2.8L knock sensor VIN: 4USCJ3324W
I sent the ecm out to have it checked and see if it was broken. And the answer is yes. Beyond repair. A used ecm fix the knock sensor issue. Thanks for all your help. This one kicked my butt a little bit. Mike [...].
1998 BMW 740iL 4.4L steering wheel controls VIN: WBAGJ8320W
as was suggested it was clcokspring that was bad, the annoying thing is that according to alldata diagrams it shows the steering wheel module is not part of the steering wheel and was before the clock spring and not one mention that its part of the steering wh...
2001 BMW X5 3.0i 3.0L Poor Idle Quality VIN: WBAFA53581
Rechecked all vacuum connections and throttle body hose as well as oil separator with no problems found. Tried to remove DISA valve, would not come out of intake easily, upon further inspection found flap of valve broken, causing valve to be stuck in manifold,... Trouble codes: P0171 (System too lean bank1), P0174 (System too lean bank 2), P1349 (Man. Spec. Code Misfire cyl. 4 with fuel cut off), P1351 (Man. Spec. Code Misfire cyl. 5 with fuel cut off), P0135 (O2 Sensor Heater Circuit Bank 1 Sensor 1).
1999 Chevrolet Astro 4.3L power steering VIN: 1GNEL19W3X
New P/S box took care the problem. Thanks to all.
1997 Dodge Caravan SE 3.3L power steering pump / rackinpinion VIN: 1B4GP45R4V
We flushed out the system and replaced the rack which fixed the problem. We really appreciate all the help. Thanks to all.
1999 Dodge Durango SLT 5.9L No Start VIN: 1B4HS28Z9X
Gentlemen Did no know rather to close this under fix or no fix. We did verify the problem is the computer. However because of the age, milage and several other underlying problems he chose not to fix it. He came and got the car and has made some deal with a...
2001 Dodge Ram 2500 5.9L Surge, Cuts out, Misfire VIN: 1B7KF23621
Sorry for the late close wanted to be sure the truck was fixed. The day after I posted the help request the insturment cluster packed it in taking down the network. I unplugged the insturment cluster and the diveability issue went away. For a little bit. S...
2000 Ford F-550 Super Duty XL 7.3L Hard start VIN: 1FDAW57F9Y
Thanks everyone for your help . Tested all I could possibly test and finally decided to just pull the LPOP and inspect . Found Pump worn beyond recomended spec and scoring in gear hounsing . Replaced LPOP , ran and bled HPOP system . Now Starts everytime withi... Trouble codes: P1211, P1212, P1316.
2005 Ford F-350 Super Duty King Ranch 6.0L No Start, Poor Idle Quality VIN: 1FTWW31P05
Well I hate to close this help request this way but first off the vehicle failed to act up while I periodically pulled it in and out over the past week and a half. As far as the replies go, every thing suggested checked out fine. I was leaning towards the EGR ... Trouble codes: P0299 (TC/SC Underboost).
2008 Ford Explorer XLT 4.0L no light on VIN: 1FMEU73E58
Thank you for the replies. Code P1233 flags when the fuel pump driver is off line according to the PCM. The vehicle starts and runs with no CEL. The PCM will not set the monitors to perform a emissions test in Missouri. What we found was high resistance in ci... Trouble codes: P1233.
1995 GMC G2500 Vandura 5.0L No Start, Cuts out, Stall VIN: 1GTEG25H7S
ok its fixed. turns out it was only a half broken or corroded wire from the 'ecm b' fuse to the pcm. how embarassing. what i DID do- measured voltage at pcm from fuse with lab scope. what i SHOULD have done- tested same circut with test light. why? .test... Trouble codes: 12 (testing and results).
2006 GMC Savana 2500 6.6L MIL Lamp on VIN: 1GTGG25236
We found the instument cluster in the vehicle was for a gas engine and did not have any diesel circuits for the wait to start light. A new cluster with the RIGHT part number fixed it. (we had swapped out the cluster for the same part number) The customer mad... Trouble codes: P0381 (Wait to start light control circuit).
2011 Hyundai Accent GLS 1.6L engine VIN: KMHCN4ACXB
Sorry for the long delay in the fix. It was a fill job. I replaced all the lifters and that seemed to take care of it, as you guys stated it is crutial to use OE filters and the right grade oil on this car. Through research and your guys help, these cars have ...
2002 Isuzu Rodeo Sport S V6 3.2L Engine/Trans VIN: 4S2CK57W42
Thanks to the advise from you guys, some said pull engine and trans, others said pull engine with torque converter, I decided to pull engine and trans together, then pulled trans off on the floor. I jacked up engine on a crane and removed pan to find a rod cap...
2004 Jeep Wrangler Rubicon 4.0L Speedometer VIN: 1J4FA69S74
First off, thank you to all that that took the time to reply. It was suggested to check/disconnect the alternator to see if there was any AC voltages riding over the DC signals causing the pcm to interpret these as "pulses" from the VSS. The signal from the s...
2005 Kia Sedona EX 3.5L Poor Idle Quality, Hesitation, Stall, Poor Fuel Economy VIN: KNDUP13165
I've checked everything I can think of,and I've installed 3 different MAF sensors but I cannot get this thing to quit running so rich.I'm gonna advise the customer that it MAY be the PCM,but I recommend we send this vehicle to a KIA dealership for further diag...
2010 Kia Forte SX 2.4L transmission VIN: KNAFW6A3XA
Well, everyone, it appears that this is a problem with the vehicle that only Kia can solve. After researching similar problems online, I found several instances of customers complaining of the same issue. A few have had nearly every component, including the tr...
2000 Land Rover Discovery Series II 4.0L No Start VIN: SALTY124XY
I'm closing this post right now as customer has not decided to send to dealer as of yet. I have checked with many local shops and no one locally has an Autologic or t4.Some repies say that pairing BCM with ECM can't be done ,while others say it can be done.Cus...
2008 Land Rover LR2 HSE 3.2L Drivers Seat VIN: SALFR24N98
After checking the wiring diagram carefully and ensuring all powers and grounds were present we ordered the seat memory module. I installed the module today, programmed it and initialized it all functions are perfect now. Thanks for the replies. Tristan
1999 Lexus LX470 4.7L Cuts out, Stall VIN: JT6HT00W0X
well could not duplicate the problem. changed the brake sw and cleaned the throttlebody as sugested by the replies. monitored all sensors for any abnormalities but nothing showed up. gave vehicle back to customer and it stalled agian a few days later. custome... Trouble codes: P0715, P1520, C1241.
1992 Mercedes-Benz 300E 3.0L Cooling Systems VIN: WDBEA30E0N
Thanks for all the replies guys. Most of the replies were pointing at things I've already checked which were thermostats, fan clutch, aux fans, and so on. This is what I found; there was no pressure in the cooling system no matter how long I've ran it, and m...
2000 Mercedes-Benz SLK230 Kompressor 2.3L No Start, Stall VIN: WDBKK47F4Y
Yep, right on again. Heated up sensor and up over 2kohms. Not expecting this one to come back again. Thanks for the help as always.
2000 Mitsubishi Galant ES 2.4L Poor Idle Quality, Cuts out, Stall, Misfire VIN: 4A3AA46G5Y
This thing was really something. Used a infrared temp gun and noticed that the misfire was on cylinders 3&4. One and two were firing normally. So I to dropped the PCM. It was in a terrible location. It is in the cabin on the right side sandwiched in between th... Trouble codes: P0340, P0300.
1996 Saab 900 S 2.3L first gear VIN: YS3DD78B3T
after countell hours calling it bad names , there was a bad contact at the control module so there was no 5v referance signal going to the gearbox computer , once the cotact was was fixed lights went out
2002 Subaru Outback Limited 2.5L engine VIN: 4S3BH68672
Thank you to all who responded. After doing all the suggested tests, we ended up replacing the radiator, which wound up being plugged, and the vehicle was repaired. Thank you again IATN
2008 Subaru Legacy 2.5i Special Edition 2.5L Tpms system VIN: 4S3BL61668
2008 Subaru Outback 2.5i 2.5L MIL Lamp on VIN: 4S4BP61C98
well this vehicle has been on the road for two weeks with no concern.i suspect that the throttle module was the issue because no amount of wiggling could get problem to reoccur.i called suburu and to this day they havent sold a single one.sorry there was no re... Trouble codes: P0037, P0031.
1996 Toyota T100 SR5 3.4L No down shift to 1st VIN: KZN1850004
This one is believed to be fix. After removing solenoids a second time and cleaning them, reinstalled and flushed transmission. Also installed Lubegard additive which has worked well in the past as a friction modifier. Why post wasn't closed, it failed on us o...
2006 Toyota RAV4 Limited 3.5L Misfire, MIL Lamp on VIN: JTMBK31V06
well i swapped injectors around, checked compression manually traced each circut and tested for opens. i ended up scopeing the coils. the coil firing circuts looked good as well as the coil recieving circuts(igf, igt) that lead me to condem the ecm. we shippe... Trouble codes: P0352.
2001 Volkswagen Cabrio GLS 2.0L Cruise Control VIN: 3VWCC21V71
I broke down and installed another cruise control module. Again, used per shop owner and customer request. No change. I retested everything...again. Pin 1: "Vent valve". Nothing occurs on this ckt on its own. Pin 2: Vacuum Pump control. Nothing occu...
2003 Volkswagen Passat GL 1.8L MIL Lamp on
Thanks to everyone for your help, unfortunatly the problem wasn't resolved. The customer took it to the dealer but I haven't heard if they found the problem? So after my last update I installed an OE tensioner from VW like most of you suggested. Still the sam... Trouble codes: P0011.
1997 Volvo 960 2.9L ignition VIN: YV1KS9604V
It really does come back to basics sometimes... Using the power and ground distribution charts (which are poorly labeled and outlined to an amazing degree) For example: Reading the terminal position chart it seems that pin 50 is non-essential in the "run" posi...
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next