× 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 October 10, 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
2005 BMW 645Ci 4.4L No Start VIN: WBAEH73465
Disconnected battery and replaced valve cover gaskets. once battery was reconnected turned key on to clear faults and loud clicking was heard in engine compartment. Inspected and found clicking was coming from the throttle body. I have a Launch X431 and Snap O...
2006 BMW X5 3.0i 3.0L MIL Lamp on VIN: 5UXFA13506
need to know sensor range ie 0-5volts for this sensor i assume works like standard maf but very tiny if signal is like regular maf then it is bad. Pro Demand and other give no sensor or data info on component. just dont want to replace a bad part air pump work... Trouble codes: P1419 (Seconday mass air flow meter)
2006 BMW 750i 4.8L Dynamic Drive VIN: WBAHL83516
Good afternoon all, We have a 06 750i E65 initialy came in with complaints of Transmission,Dynamic Drive, ABS lights on with hard steering, no steering position adj. or horn. Scanned and had the following codes. We are using an Autologic and WDS wiring diagra...
2008 BMW X5 4.8i 4.8L I/P-Cluster and AWD & DCS VIN: 5UXFE83518
Hello, we are having issues with this BMW after a battery replacment. We installed a Exide Battery for this vehicle. I researched some before I removed the old battery (if there was any special procedures on Mitchell, I wanted to know). There was not much info...
2000 Buick LeSabre Limited 3.8L coolant flow through heater core VIN: 1G4HR54K1Y
Calling out for suggestion with an unusual case of trouble. This 2000 Buick LeSabre is a very nice, low mileage, well maintained car. It came to us with no heat from the heater. After considerable testing, working, parts changing the bottom line problem is p...
2002 Buick Rendezvous CX 3.4L Drive Shaft VIN: 3G5DB03E32
Hello all here at iATN. This is my first time ever writing and asking for help here on iatn. Customer brought this car in and complain there's a clunking noise when she back up the car and or shift from park to drive and from drive to reverse. I had the car up...
1968 Chevrolet Chevelle Malibu 5.3L Wiper Motor VIN: 11327W4568
Trying to hook up wiper motor on this car. Has a 3 prong switch. No factory conectors. I am sure I got the wires routed right but I cant get to work. Does anyone know how to replace motor? New motor comes with two wires not hooked up. I am having hard time on ...
1977 Chevrolet Camaro 5.7L Gear Selection
The TH350 tranmsssion can not be pulled using the car's shifter into 2nd or low. It can be moved into those gears by using a wrench under the car on the selector shaft from the transmission. Also, the transmission fails to go into park. You can hear the park p...
1997 Chevrolet K1500 Cheyenne 5.7L Misfire VIN: 2GCEK19R5V
Vehicle came back yesterday with multiple cyl. misfire code and had a feeling the (reman)injector unit went bad and used a bore scope to confirm the fuel pressure regulator was leaking bad.Replaced with a Delco unit and all was well except a cyl. 3 misfire on ... Trouble codes: P0300 (Multiple misfire)
1997 Chevrolet C1500 5.0L abs VIN: 1GCEC14V7V
Can the abs unit be bled with out using the tech 2, maybe jumping the abs pump motor.
2000 Chevrolet Suburban 1500 LT 5.3L rattle noise on rail VIN: 3GNFK16T5Y
Good afternoon group, this Suburban has a buzzing or rattle type noise coming from the fuel rail at the fuel pressure regulator on the return line only at idle. I remove the vacuum supply line to the fuel press. reg. and the noise goes away and while driving, ...
2003 Chevrolet Express 2500 6.0L Cuts out, Stall VIN: 1GCGG25U63
The customer has complained that the engine cuts out at idle upon stopping in traffic. It restarts immediately and can cut out before the traffic light turns green but not always. It can cut out this way several times in a trip. I finally got it to act up on m... Trouble codes: P0171 (System too lean bank 1), P0174 (System too lean bank 2)
2004 Chevrolet W3500 Tiltmaster W3S042 4.8L Engine VIN: J8BB4B1454
Tring to avoid exploratory surgery, this engine has a hard tapping noise intermittant, does not sound like lower engine knock, can start and let idle for 30 minutes with no noise but within 20 seconds of raising rpm noise begins and stays until returns to idle...
2008 Chevrolet Cobalt LS 2.2L Mechanical VIN: 1G1AK18F48
Just need to know if this engine is a free spinner. Timing jumped and no compression. Don't know if it's worth changing timing chain etc.
2001 Chrysler Sebring LX 2.7L MIL Lamp on VIN: 1C3EL45U01
Thanks in advance for any help you can give me. . Car came in with 2 trouble codes, p0172, p0175 bank 1 & bank 2 rich. (my scanner defines them as system lean for some reason) customer had replaced both post-cat o2 sensors after a "diagnostic" at autozone. We ... Trouble codes: P0175 (Bank 1 system rich), P0172 (Bank 2 system rich)
2008 Chrysler Sebring Touring 2.7L Power seat VIN: 1C3LC55R68
Car came to shop with seats not operating. Replaced fuse 9 in engine compartment fuse box. Could not locate reason for fuse blowing. Returned car to customer. 3 days later presented again with blown fuse. Replaced fuse and could not find cause. Wiring diagram ...
1995 Dodge Ram 2500 5.9L Poor Accleration VIN: 1B7KF26C7S
Dodge Diesel techs: Please help if you can! Customer brought us this truck complaining of a sticking throttle pedal at times, causing this truck to rev to red line, despite key off, or trying to play with acclerator pedal. Linkage and cable was all in excelle...
1998 Dodge Ram 1500 Laramie 5.9L Ignition VIN: 1B7HF1621W
This truck has no spark. checked basic tune-up. No spark from coil. Tested coil and ok. Getting signal from cam and crank sensors. Question PCM. How does one check coil driver from PCM? Injectors are pulsing, fuel ok. Thanks. Randy.
2001 Dodge Dakota 3.9L Hesitation, Surge, Cuts out VIN: 1B7GG22X61
this truck got a hesitation when we accelerate the customer tell me that he crank the engine and it check the oil pressure and when the pressure goes higher then always the truck will hesitate when i will go with it.i am not able to duplicate the trouble , the... Trouble codes: P0442
2003 Dodge Ram 2500 5.7L Surge, Rich VIN: 1D7KU28DX3
This truck is running very rich and black smoke out the tail pipe.When it is first started it runs smooth with 20 in of vaccume,it will start running rough and surging.the vaccume will start fluctuating and go to about 14 in,and it will start running rich.I sc...
2006 Dodge Ram 1500 ST 4.7L Cruise Control VIN: 1D7HA16N76
The cruise control light will come on when you push the cruise button, but when you try to set cruise it will shut down, cruise light goes out and will not come on until key is cycled. Everytime this happens it stes a code P0582- speed control vacuum control c...
2009 Dodge Ram 3500 SLT 5.7L No Start VIN: 3D6WH48T69
Good morning Iatn. I have one I need help with. I have done little on these new Chrysler SKREEM systems. A little history: truck had a salvage engine installed before we got it by an unknown location. We got this truck and the battery was stone cold dead. Char...
1999 Ford Windstar SEL 3.8L Windows, Dome Lights, Headlights, Wipers VIN: 2FMDA5348X
Vehicle came in with Concerns of intermittent no start condition. Solenoid would click but no crank. Second concern was the headlights, wipers, door locks and windows, would decide they wouldnt work or work on their own in the case of the wipers. Headlights as...
2001 Ford F-250 Super Duty XL 5.4L Hesitation VIN: 1FTNF21L21
Hello everyone i have a 2001 f250 5.4 that i have replaced all cop and plugs with motorcraft parts and the truck idles great as you accelerate around 1400 rpms the engine stumbles but come out of it around 2000 rpms and has good power the rest of the way also ...
2001 Ford Taurus SE 2-Valve 3.0L MIL Lamp on VIN: 1FAFP552X1
Vehicle came back in yesterday with CEL on, was idling very weird. Up and down and sometimes almost dying. No problem when cruising at speed, only at idle. Had codes P1132 and P1152(both indicates rich). Replaced the IAC motor and cleaned the throttle body(bad... Trouble codes: P1138, P1158, P1132, P1152
2002 Ford Explorer XLS 4.0L right and left cassette VIN: 1FMZU72K32
any way to put in the cassettes without pulling the engine?
2003 Ford Focus SE 2.0L Unknown VIN: 1FAFP34P63
veichle came in with a vibration in compartment when idling and in all gears when you toqure the car the vibration stays the same. i checked the three mounts and none of them have much play to where i would say replace it any ideas??
2005 Ford Escape Limited 3.0L No Start, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMYU94145
First time it came it found bad coil drivers in pcm sent out to have it repaired and replace all 6 coils with (aftermarket) Second time it came in same thing PCM zapped and #3/4 coil shorted this time replace coil#3/4 and got all 6 spark plugs from Ford and ha... Trouble codes: P0353 (p0354-), P0354 (testing and results)
2005 Ford F-250 Super Duty FX4 5.4L No Start VIN: 1FTNF21505
NO spark with NO Trouble codes... We have injector pulse and good compression and fuel pressure rail at 45 psi. When cranking we have the RPM pid show 152 rpm.s...Crank sensor is difficult to get at with removal of the A/C compressor to gain access to use scop...
2006 Ford Explorer Eddie Bauer 4.0L r/side cam chain guide VIN: 1FMEU74E26
right side cam chain guide. the outer guide appears to be held in place by only a wedge action between casting and chain. is this correct?? the inner guide (towards engine center) has a bolt. outer guide (away from engine center) does not.
2006 Ford F-350 Super Duty XLT 6.0L Misfire VIN: 1FTWW31P76
I hope someone can point me in the right direction with this problem. Truck was towed in with the customer complaining about a severe misfire at 2500 RPM. He states that the engine has been replaced with a new unit purchased from a Ford Dealer. He states that ...
1998 Honda Passport EX 3.2L Poor Idle Quality VIN: 4S6CM58W6W
We have a Passport that came to us from another shop for high idling issues, came in idling at approx 2800rpm. We tested IAC motor & performed Standard PCM tes light test for IAC control, works well. Cleaned ground by Cruise control module. Tested TPS sensor, ...
2003 Honda Accord EX 3.0L No Start, Cuts out, Stall VIN: 1HGCM66573
Hi guys, and thanks in advance for any input. This Honda will start and stall 2 or 3 times in a row then start normally for any number of times. I suspected the ignition switch but it passes the continuity test given by Honda, and jumpering it has no affect. T...
2006 Honda Accord LX 2.4L Unknown
hi all, ive got this accord thats using lots of oil.regular customer,she has not missed an oil change or a service since new.but recently it started using a ton of oil.i replaced the pcv with dealer unit,same thing.anyone else had this problem with this 2.4l ?...
2011 Hyundai Sonata GLS 2.4L Very touchy throttle VIN: 5NPEB4AC8B
Greetings IATN members. This Sonata came in with a request for us to see if there was any way to decrease the throttle sensitivity. The complaint was that even a small amount of foot movement on the TPS resulted in a sudden enough lurch forward that if the veh...
2007 Infiniti G35 X 3.5L Poor Idle Quality VIN: JNKBV61F67
OK i have read the archives and have found some posts on idle air volume relearn on this vehicle. Here is what we did. We wiped the throttle bodys out with a rag and cleaner after that the vehicle has a rolling idle. Using a modis, the manual relearn procedure... Trouble codes: P0507
1995 Jeep Grand Cherokee Laredo 4.0L Fuel System / PCM VIN: 1J4GZ58S2S
You Chrysler guys are going to come up with this right away I Hope. Initial problem Key on / no check engine light / ASD rattling in engine compartment. Does this for a few seconds then rattling slowly stops and check engine light comes on - After Check engine...
2005 Jeep Liberty Limited 3.7L Comp, Cond. VIN: 1J4GK58KX5
On recommendation, I replaced the A/C compressor, condenser, accumulator and liquid line with orifice tube inside. May have added to much oil but I HAVE drained that back out. The condition is I can NOT even get 6oz of freon into the system with the high side ...
2002 Kia Spectra 1.8L MIL Lamp on VIN: KNAFB12182
Any comon problem known with this system? Any help would be appreciated.This check engine light after readiness comes back on. Called Identifix hotline, followed directions but no results. Thank you Trouble codes: P1401 (EVAP Emission Control System Malfunction)
2004 Lincoln LS 3.9L Fans, hydraulic VIN: 1LNHM87A74
Customer stated: hears roaring sound and thought engine was racing. Hydraulic fans on @ high speed is what he hears! Regular customer, car well maintained and clean. Recently replaced all plugs and coils due to P30X codes and had trans rebuilt approx 6-8 month...
2002 Mercedes-Benz C240 2.6L compressor VIN: WDBRF61J72
We could use some help pointing us in the right direction. This car is not cooling compressor is coming on to 70% and that seems to be the max according to autoland scale. Ambient temp is reading 28c interior temp is reading 26c evap temp is reading 24c. cooli...
2000 Mercury Mystique GS 2.0L MIL Lamp on VIN: 1MEFM653XY
This is a new car to us. Customer just purchased it. Brought the car in for a check engine light last week. Found PO131 no O2 sensor activity B1S1. Found faulty O2 sensor and replaced it. All was normal with activity and O2 seemed normal. Customer called a cou... Trouble codes: P0135
2009 Nissan Sentra S 2.0L starter VIN: 3N1AB61E79
Vehicle will not crank. Dash lights come on but no crank when key is engaged. Battery tests fine, no breaks in fusible links, but the interior fuse block has no power to it. You can hear the relays when the ignition is attempted. When key is engaged the lights...
2008 Pontiac Wave 1.6L MIL Lamp on VIN: KL2TD55638
PLEASE,PLEASE,PLEASE HELP ME FIX THIS DAEWOO PIECE OF ---.every 3 or 4 days the check engine light comes on for p2096(post cat fuel trim system lean b1).smoked intake no vacumn leaks found (19-20 on vacumn gauge at idle)terra cleaned fuel system , fuel pressur... Trouble codes: P2096
1993 Saab 9000 CDE Turbo 2.3L No Start, Poor Idle Quality, Stall VIN: YS3CL48M5P
OK SAAB techs: We are a Saab- heavy shop but this one takes the cake! After our initial repair, vehicle began to stall/ no start. Checked PIDS and saw no response on the Throttle when doing koeo sweep test both using pedal and manually moving throttle blade. V... Trouble codes: 675B0, E7590 (Safety system faulty operation)
2006 Saab 9-3 2.0T 2.0L Hesitation, Cuts out, Stall VIN: YS3FD49YX6
Wiring, from what I can see and able to check without tearing apart the car appears ok, nothing swollen or broken, really dont want to wait another 3 months for a warranty pedal from dealer again. Is there a "common" wiring short with these that is anyone awar... Trouble codes: P2135 (Throttle Pedal Position Sensor A/B Voltage Correlation), P0638
2005 Subaru Outback i 2.5L engine vibration VIN: 4S4BP61C65
After replacing Rt front axle, spark plugs, timing belt and related components, an engine vibration can be felt while at idle in Drive or reverse. The timing has been re checked twice. We tried two differend brands of axle. Rechecked spark plugs as well. Engin...
2002 Volkswagen Beetle GLS 2.0L Cat and evap system VIN: 3VWCK21C72
Vehicle came in with check engine light on. Codes were 16840 Evap system very small leak detected; 16804 Catalyst system; P0420 Bank 1 operations below threshold; P0456. We changed upstream and downstream oxygen sensors and replaced the manifold gasket. Car r...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1998 Acura CL 3.0L Lights Fluctuate VIN: 19UYA2257W
Hey Guys, thank you for all of your help. VERY long story made short I narrowed it down to the eld and ecu not responding quickly enough to the load that was being applied. By Joseph's hint I tried disconnecting the signal wire from the eld to the ecu and the ...
2006 Acura RL 3.5L Draw VIN: JH4KB16536
JACOB from Washington nailed it. There is a sensor on the trunk lid by the license plate for opening the trunk by touching it. Unplugging the sensor made the short disappear. We should of know this from the customers comment that the trunk would open by itself...
2004 Cadillac CTS 3.6L no ecm comm VIN: 1G6DM57714
I finally was able to get back on the Cadillac and did some more voltage drop tests with an inline headlight tester. I discussed the circumstances and we decided on a rebuild GM reman ECM. That fixed it. I knew there was that possibility but resisted till the ...
2005 Chevrolet Impala 3.4L Surge, Misfire, MIL Lamp on VIN: 2G1WF52E85
Noticed while we did have 30K output on #4/1 coil it was a little inconsistent unless we dropped it down below 30K, while the other 2 coils were consistent even at 35K. Problem remained with those two cylinders even when we swapped both other coils in that pos... Trouble codes: P0300.
2006 Chevrolet Trailblazer LT 4.2L Poor Idle Quality, Stall, MIL Lamp on
Well I pulled the valve cover back off installed a dial inductor on number 1 cly to make sure its on tdc ckd my cams and both were on the flats ckd with a straight edge both lay flat I will r&r the cover again and ck for something inside the cam cover right no...
1984 Dodge B250 5.2L no spark VIN: 2B6HB23T2E
Hello everyone i like to thank all for the help with this problem.we install an ECU and that fix the problem van starts and runs good I guess the computer is the one that grounds the coil getting input from the distributor pick coils. Best Regards, The Kar K...
2006 Dodge Ram 2500 SLT 5.9L 2 Separate Problems VIN: 3D7KS28C96
This one was frustrating - Truck has been gone for 2 weeks now, and no reports of lost oil pressure, new turbo working fine, and was able to program the secret PIN Code into the truck via the WCM module. It was suggested to drive the truck for a bit, then do ... Trouble codes: P0633 (Skim Secret Key Not Stored).
1968 Ford Thunderbird 7.0L Surge
I have got the surge out of this vehicle. I replaced the #64 jets with #65s, set the float level on the high side and the idle mixture screws are now a little on the rich side. road tested and it was much better. It would only surge on a slight decline in t...
2002 Ford Explorer XLT 4.0L lift gate ajar switch/CSM module VIN: 1FMZU63E12
well vehicle is fixed now. I tested all grounds with DVOM and everything tested good. I had also noticed that the owner replaced the negative battery terminal with a sub-par aftermarket one. After soldering new ring terminals on with marine clamp style ends I ...
2003 Ford Escape XLT 3.0L Drl VIN: 1FMYU93133
Unfortunately I have not gotten the opportunity to look at this vehicle again. I did receive a few responses and will double check the ground circuit and see if the scanner will give me more info. I will post my findings after I get the vehicle back to the sho...
2004 Ford Freestar Limited 4.2L radiator fan VIN: 2FMDA58204
We were unable to pinpoint the cause of the hi speed fans coming on. I replaced the t-stat with no change in conditions. I also checked for exhaust gases in the cooling system, no exhaust gases found in cooling system. All sensors related to cooling fan operat...
2005 Ford Freestar SE 3.9L Steering Wheel VIN: 2FMZA51695
Thanks to Jeffrey [...] pulled a little more on the rack bolt and the wheel came off. The point about the ratio of 20 to 1 makes sense.Thank you again.
2006 Ford F-350 Super Duty XLT 6.0L Poor Idle Quality, Surge, MIL Lamp on VIN: 1FTWW31P46
Hey Guys, Thanks for those that responded. The IPR was sticking when cold and the pump pressure was going through the roof, only for a very short time, 10 or so seconds. I just had to record it and study the data basically. One big lesson to learn for ... Trouble codes: P2284.
1997 GMC K2500 Sierra SL 5.7L Surge, Cuts out, Misfire, Poor Fuel Economy VIN: 1GTGK24R6V
Thanks everybody for the great replies. Wayne from North Carolina nailed it. We swapped the gear 180' & the correlation code went away. No more engine lights either but the engine had a bad vibration at around 2000-3000 RPM's. I still think the timing chain is... Trouble codes: P1345.
1999 Jeep Wrangler Sahara 4.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, o cruise Control VIN: 1J4FY49S1X
Thanks to all that replied. Replacing O2 Sensor fixed all driveability issues. The "no bus" and loosing all info on the dash was fixed by replacing dash connectors with the revised part from Mopar/Jeep.
2002 Jeep Liberty Limited 3.7L Poor Idle Quality, Stall, MIL Lamp on VIN: 1J8GL58K42
THIS CAR IS FIXED. I WANT TO THANK EVERYBODY FOR THEIR INPUT. IT TURNED OUT TO BE THE KEY WAY ON THE NEW CAM SHEARED AND THEN LOCKED IN PLACE. THE DEALER WARRANTIED THE CAM FOR ME. PUT IT IN AND IT RUNS GREAT. I GUESS ALL THE CRAZY CODES SENT ME ON A GOOSE CHA... Trouble codes: P0152 (2/1 o2 short to voltage), P0155 (2/1 o2 heater failure), P0158 (2/2 o2 short to voltage), P0161 (2/2 o2 heater failure), P0175 (2/1 o2 rich), P0500 (No vss detected).
2006 Kia Sorento EX 3.5L Engine and coolant VIN: KNDJD73356
I used the block tester found gasses in the cooling system but customer refused to fix it so I did nothing to it oh well his problem not me
2002 Lexus LS430 4.3L No Start VIN: JTHBN30F32
I thought I closed this request long ago. Sorry. It was just a bad furl pump. I wasn't familiar with the wiring diagram. Thank you for your replies.
2008 Mercedes-Benz R320 CDI 3.0L engine light VIN: 4JGCB22EX8
well thanks all for the advice byt i did install a new twc temp sensor and that fix it
2008 Mini Cooper S 1.6L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: WMWMF73508
Hi all as you guys all suggested I went ahead and put in a new purge solenoid which quickly fixed the unmetered air codes i was having issues with. I updated my AUTO LOGIC and was able to check the evap system all passes now. I found that the old purge was st... Trouble codes: 2783 (random missfire), 277B, 27AC, 2777 (cumbustion missfires), 2B64, 2785 (additional mixture adaptation).
2000 Pontiac Grand Prix SE 3.8L No Start VIN: 1G2WJ52K4Y
well guys i have fixed this car!2 different snappy scanners would not read the bcm but it ended up being a defective pass key module thank you guys for your time and patients greg Trouble codes: P1629.
1977 Porsche 911 S 2.7L injectors VIN: 9117201516
Thank You once again everyone... I am closing this request because it will be a bit before I can finish it. I pulled the tank and even though it was boiled and sealed 4 years ago, it is full of rust. Will be sent off to be cleaned. I did clean the fuel distr...
2004 Saab 9-3 Arc 2.0L Air Bags VIN: YS3FD75Y54
First the scanners were launch 431 master and new launch GDS.With the GDS that I bought after we started this car we found pass seat position sensor open.after sensor replacement all is well,thanks to all who replied this one is fixed and gone!
2006 Saturn Vue 3.5L abs VIN: 5GZCZ53466
The fix was the right rear abs sensor, caught it on road test watching data even though light was on and abs inactive. Snap on does not know the cause of this problem that when scanner connects the abs is shut off, they will call me when they get an answer. Th...
1992 Toyota Camry LE 2.2L Poor Idle Quality, Stall VIN: JT2SK12F0N
Thanks to all for your posts, the problem was an intermittently sticking egr (expensive too), removed the hose to it, and blocked, no more problems. The posts were "clean the throttle body/plate" "a dirty throttle body or iac valve sticking, clean both" "commo...
2005 Volkswagen Golf TDI 1.9L DDICM/PCM operation VIN: 9BWGR21J05
Thanks for the replies. I was not able to obtain a connector-face pin identification/breakout for either the 60 or 92 pin connectors, so I made one based on what I could make from both Mitchell and Current Trac. The engine is operational, with the only codes...
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next