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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 23, 2013
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
2008 Acura TSX 2.4L engine VIN: JH4CL96958
Customer brought vehicle back for same issue. The symptom reminded her of a battery getting ready to go out. The engine sound reminds me of an engine trying to start with advanced timing. As if the engine is working against itself. Have seen other Honda vehicl...
2005 BMW Z4 3.0i 3.0L Convertible VIN: 4USBT535X5
Greetings fellow techs! This one's eating my lunch. After pump replacement (submerged in water and rusted out because of blocked drain tube) the scuttle latch on top of windshield will not lock automatically. The red led on the convertible switch is flashing ...
2006 BMW X3 3.0i 3.0L Hesitation, Surge VIN: WBXPA93436
This x3 has a stutter/hesitation under mild to heavy load at 3k rpm and higher. Feels almost like at misfire but plugs and coils have been changed and problem still occurs. No codes in Engine or Trans. Does have oil wear in transfer case module. Fluid looks ne...
1991 Cadillac DeVille 4.9L relay VIN: 1G6CD53B8M
We have an intermittent no crank and I want to check the crank enable relay but we can not find it. Mitchell shows it on both sides under dash and I havent found it on either side. need a Caddy guru! Thanks in advance
2005 Chevrolet Silverado 2500 HD 6.0L power steering VIN: 1GCHK29U55
Greetings fellow techs! I already know which way I'm leaning with this particular vehicle, but thought I cast a line out just to see what kind of nibbles I'll get. So here goes... Customer dropped off his truck compaining of a whining noise, which I confirmed ...
2006 Chevrolet Silverado 2500 HD LT 6.6L Tcm VIN: 1GCHK23D66
Truck came in from ford dealer to have tcm replaced and programed, replace the module with a new module and went to program and there is no communications...had some used modules and tried them,still no communications. Replace glow plug control module then ecm...
2007 Chevrolet Tahoe LTZ 5.3L Co300 Rear Drive Shaft Speed Sensor VIN: 1GNFK13067
Thanks in advance, this tahoe is setting co300 code. Using tech2 monitor spd signal-rpm spd signal is very erratic, 1657 then 634 then 32 rpm etc. Replaced speed sensor, still erratic rpm. Just wondering if anyone has come across this code, and if there is a p...
2007 Chevrolet Suburban 1500 LTZ 5.3L 4 4 wheel drive, stabilitrac VIN: 1GNFK16307
Fist episode was about 3 months ago cust states that vehicle lost power on highway and stalled out, after which became hard to turn steering wheel. Nothing found with stalling but four wheel drive was turned on. Vehicle was fine until now cust went over large ...
2001 Chrysler 300M 3.5L No Start VIN: 2C3HE66G21
This 300M die when the customer is driving on the high way. It will try to start and die. I already replace the cam and crank sensor, no fix. Compression is about 150 PSI on all cylinder. According to the scan tool, none of the Monitor is ready. But, there is ... Trouble codes: P0605 (Internal control module ROM read only memory error)
2000 Dodge Dakota 4.7L current draw VIN: 1B7GG22N2Y
Has anyone seen this before, the customer says she has to get a jump start a couple of times a month(common for it to sit a week). I would lean towards the tcm being at fault, but would like to not just through a part at it without some kind of confirmation fr...
2004 Dodge Durango Limited 5.7L a/c VIN: 1D8HD58D04
not to familiar with this system.i did a evacuate and recharge,system has no leaks..so cold air comes out the rear vents...cool/warm air out the front vents.it has rear a?c..had no trouble codes.a/c has a full charge.low side reading is 35 psi, high side is 17...
2000 Ford F-550 Super Duty Lariat 6.8L Misfire, No spark bank 1 VIN: 1FCNF53S8Y
Ford motor home chassis. 6.8 v10. Ran good when last used, now it has no power. Low manifold vacuum at idle/2500rpm, 15-17 in. Even compression banks 1 and 2. Injectors are firing. Bank 1 o2 stuck low, (200mv. Bank 2 switching good. Adding propane to throttle ...
2002 Ford F-250 Super Duty Lariat 7.3L Icp VIN: 1FTNW21FX2
This truck came in on a hook with no start condition.during cranking icp would only reach about 350psi.after testing i determined it needed hpop.i replaced hpop and regulator after a few cranks it cranked right up.it idled for about 20 minutes everything seeme...
2005 Ford Focus ZX4 2.0L Excessive Emissions, Poor Idle Quality, Stall, MIL Lamp on, Battery light on VIN: 1FAFP34N15
Customer complained car lost engine power but still ran but wouldn't idle. Vehicle towed in. Started car ran fine for about 5 minutes, battery lite came on engine died. Restarted car, has to keep foot on car to keep running and noticed high exhaust emissions. ... Trouble codes: P1397
2009 Ford Escape XLT 3.0L AC system VIN: 1FMCU03G59
Hello all, and thank you for in advance for an guidance. Working on a Ford escape, 3.0 duratec. Having odd AC issues. This car came in originally with the pressures thru the roof: high side about 370psi and low side had our gauge pegged (120 psi). Wouldnt turn...
2009 Ford Expedition EL XLT 5.4L automatic VIN: 1FMFK15589
ok guys this expedition came in with the drivers front window regulator broken.I replaced the regulator and reinstalled the factory motor.The window works fine up and down but in automatic mode it stops an inch before completely closed.I read on mitchell about...
2008 GMC Yukon Denali 6.2L Hesitation, Surge VIN: 1GKFK63858
Hey all. This truck is getting to me a little bit. truck came intop shop with a hesitation or surge. checked codes have code P0230 Fuel pump Control Circuit. Tested for power and at Fuel pump control module pin 13 it has power when i turn the fuel pump on and ... Trouble codes: P0230
2001 Honda Civic LX 1.7L instument cluster VIN: 1HGES16551
I have a 2001 civic with a dead instrument cluster. Customer bought this car 1 week ago so no repair history. Warning lights, signal indicators work but nothing else. All gauges, odometer, back lighting not working at all. Customer told me the guy he bought it...
2001 Honda Civic EX 1.7L all gears VIN: 1HGEM22941
Hi fellow techs. Thanks for any help that may be offered. This Honda belongs to my son, I'm trying to help him out, I might add that he lives about 300 miles away from my shop, all work that has been done has been done at his home, in his garage, on the ground...
2007 Honda Accord Special Edition 2.4L MIL Lamp on VIN: 1HGCM56357
The P0139 freeze frame data is as follows: RPM = 2213 ABSOLUTE THROTTLE = 23.1 RELATIVE THROTTLE = 14.5 CLOSED LOOP IAT = 69 F ECT = 194 F AIR FLOW RATE = 22.8 g/s INTAKE MAP = 20.6 IGN TIMING ADVANCE = 21.5 STFT = 0.8 LTFT = -1.5 SPEED = 46 MPH CALCULATED LOA... Trouble codes: P0139 (B1S2 Oxygen sensor slow response)
2005 Jeep Grand Cherokee Laredo 4.7L Stall VIN: 1J4HR48N15
stalls restart no promblem only with customer driving of course,no codes.can not duplicaye conceren.tapped on pcm stalls no codes.replaced pcm.had dealer reflash.test drove good .customer picked up came back same concern.tapped on pcm same situation.is tap tes...
2003 Mercedes-Benz CLK430 4.3L Convertible top VIN: WDBLK70G33
Hello every one thanks for reading this help. I have a customer with convertible top not opening, I synchronize all windows after replacing window regulator. when I twist open front top handle all windows goes down but when I push open top button nothing happe...
2001 Mercury Villager 3.3L Wiper Washer Light VIN: 4M2ZV11TX1
Hello and thanks for the help on this one. The vehicle is in for the washer light being illuminated on the dash with the reservoir full or not. I disconnected the connector on the sensor and the light is out...so I thought it must just be the sensor. I replace...
2007 Mini Cooper S 1.6L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire VIN: WMWMF735X7
Start the vehicle cold and it idles ok, slight roll. 30 seconds later it will start to roll up and down 800 rpm to 200 rpm, left for 2+/- minutes and it will stall. Happens when the vehicle is hot or cold. performed pcv test by installing a port in the oil cap... Trouble codes: P1497 (Air iduction leak), P2178 (System to rich off idle)
2001 Mitsubishi Eclipse Spyder GT 3.0L MIL Lamp on VIN: 4A3AE85HX1
Thanks in advance..This car originally had both P0421 and P0431 codes. I performed a cat burnout...Removed 1 plug wire from each bank and ran engine at 3000rpm for 3 minutes. Both cat monitors completed and car went home. A pending P0431 came back. idles norma... Trouble codes: P0431 (Warm up cat below threshold), P0507 (Idle control higher than expected)
2006 Mitsubishi Outlander LS 2.4L 1st gear VIN: JA4LX31F76
Not sure of this one. When first put in drive, you drive 2 mph, the vehicle will feel as if it were to drop into neutral and stay in neutral until You can place it in neutral and back to drive, and drive 2mph more and it will feel as it were to drop into neutr...
2008 Nissan Frontier LE 4.0L anti-slip VIN: 1N6AD07WX8
the SLIP light and the VDC off light are both on. I recently changed the front pads and rotors. During that time the battery went dead. According to the owners manual if both lights are on steady after the battery going dead you need to drive it for 10 minutes...
2002 Saturn SL2 1.9L p0341 VIN: 1G8ZK52732
vehical came in about 3 months ago with code p0341 cmp sensor circuit performance cleared codes and now its back so I ohmed out plug wires ohmed out bad removed and replaced plug wires and put new copper style spark plugs in and also gaped them to specs compre...
1992 Toyota Camry LE 2.2L Engine VIN: JT2SK12F3N
Diagnose for vibration at idle in reverse or drive. Dog bone badly cracked.front eng mount worn. Vibration still persist,loosen mount and settle power plant in bed. Have done this several times,different ways. No go, putting it out for suggestions. Thx to all....
2000 Toyota Camry LE 2.2L Poor Idle Quality, Hesitation, Surge VIN: 4T1BG22K5Y
This car came to us from another shop that could not figure it out. Funny thing was the owner stopped in and talked to me and after I told them how much to do diagnostic on it she took it to this other shop. Sad thing is I cannot figure it out either, yet... ... Trouble codes: P300P, P0105 (MAP/Baro Circuit Fault), P0120 (TPS Circuit Problem), P0133 (O2 Sensor Slow response B1S1), P0440 (EVAP System Fault)
2006 Volkswagen Jetta TDI 1.9L Electronic VIN: 3VWDT81K36
This has a lot of the same codes, Its telling me to look at the computer. Most of the codes on vws are not that many of the same ones. Has anyone had this many codes of the same type. It also has one for the boost , we can look at this, Any help with the possi...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2008 Audi A4 2.0L idle system VIN: WAUAF68E18
the car has not returned to our shop. customer on vacation. when it comes back, will try your replies, since all of them point to the pcv or pressure regulating valve per audi nomenclature. will post the outcome for sure. thanks to all you guys.
2004 BMW X3 2.5i 2.5L Mechanical
Thanks to everybody. I posted waiting for a miracle. Still don't have the answer of why the engine was running well before pulling the head, but the valves were not seating at all, like when is overheated. I pulled the cams and leak down was 80%. Sent the head...
1996 Buick Park Avenue 3.8L A/C Vents VIN: 1G4CW52K2T
Thank You guys for your replies.i culd'nt get any flow from vents any time except when i appied vaccum to blue vac.line with my mighty vac.the used a/c programmer was also faulty. i took the cover off and repaired the original one,it had a bad vacuum manifold....
1995 Chevrolet Camaro 3.8L neutral safety
ok for all you guys that said where it was thanks. problem revealed itself after finding the relay with a cheap-o connector pinching yellow and purple wires together. removed it everything works. this car had an aftermarket alarm or something installed previou...
2001 Chevrolet Silverado 3500 6.6L Engine VIN: 1GCJK33161
Many replied that cam gear has a pin that breaks off so easiest thing to do was to pull a valve cover and I found bent pushrods and cam is not turning so suspect broken pin on cam gear but engine is likely junk and waiting from customer to see what he wants to...
2003 Chevrolet Impala 3.4L Oil comsumpt
2004 Chevrolet Colorado LS 3.5L ignition VIN: 1GCCS13684
Hey, I am trying to update my thread but i do not know where to click to update, so i am emailing you, so help me update the thread with the codes i have found in the bcm module after scanning B2957, B1442, U1301 THIS CODES CAME AFTER CLEARING ALL THE HISTOR...
2005 Chevrolet Silverado 2500 HD 6.6L Stall, Misfire, MIL Lamp on VIN: 1GCHK232X5
Thanks For All the Help I Rebuilt the Fuel Primer with a kit from Kennedy Diesel and Replaced the fuel filter with a steel one from GM and the problem is gone Trouble codes: P0300, P0202, P1294, P2149.
2007 Chevrolet Impala LT 3.5L fuel gauge VIN: 2G1WT58K07
2003 Chrysler PT Cruiser Touring 2.4L Misfire, MIL Lamp on VIN: 3C8FY58B13
Thanks for all the excelent replies. Everyone who said recheck the timing hit the nail on the head. Today I took the timing cover and side engine mount completely off to recheck the timing. I set the crank first then checked cam. I noticed that while turning t... Trouble codes: P0351, P2302.
2001 Dodge Durango 4.7L Timing Chains
Hey Everyone, Thanks for taking the time out of your busy days to try and help me. One thing I have learned, is that the one for sure way to make a bad day even worse, is drinking a Monster energy drink before starting a repair. With that said, I pull...
2002 Dodge Durango Sport 4.7L Power Windows VIN: 1B4HS38N92
2002 Dodge Ram 1500 ST 4.7L compression VIN: 1D7HA16N32
thanks for all the replies.customer was told can replace lifter and folower and see what happens.next step removing the cylinder head.due to history of this engines with the valave seat,customer was given the option of replacing engine with 3 years warranty.in...
2003 Dodge Viper SRT-10 8.3L Door Lock VIN: 1B3JR65Z53
Customer was able to open the door by turning the lock cylinder under the driver's side mirror. He had to push in the door while turning the lock cylinder. He thought he was was going to break the key because it was so hard to turn! Once he started the car, th...
2009 Dodge Grand Caravan SE 3.3L Starting VIN: 1D8HN44EX9
thanks for all the advise the fix on this one was to get new fobic and win module and program.started and ran fine
1999 Ford F-250 Super Duty Lariat 5.4L Misfire VIN: 1FTNF21L4X
Thanks to all that replied. We do not see may Fords per say but I am not that familiar with mode 6. That led me to cylinders #2&6 misfires. After checking compression and fuel pressure and injector action and vac leaks all over again It ended up being 2 bad Au...
2004 Ford F-150 STX 4.6L No throttle VIN: 1FTRF14W54
Thanks for the reply's. Timothy was correct in that there is no relearn procedure required. Also it was kinda the wiring to the motor.the pin fitment in the connector was bad . The fix was replacing the pins in the connector at the motor. i never jammed anyth... Trouble codes: P2111 (Throttle stuck open), P2104 (Forces idle).
2004 Infiniti FX35 3.5L MIL Lamp on VIN: JNRAS08U34
Sorry Guys I was not able to duplicate the customers problem. We used multiple scan tools launch x431, snap-on verus, even the consult machine still no codes. Dealership thinks it a computer I don't know. Just top make sure all is understood when checked with ...
2002 Kia Optima SE 2.7L Moniters VIN: KNAGD12812
This car is done. Parked it at a friends house next to the fwy and followed the drive cycle consisting of warm up for 5 minutes in neutrel, 50 mph for 7 minutes 30 seconds, sit in drive for 14 minutes. o2 and evap moniters cleared in eight minutes. Thanks to ...
1999 Land Rover Range Rover SE 4.0L Air Suspension VIN: SALPV1242X
Sorry for the delay in updating this, I have been waiting for the customer to decide what he wants to do with this wreck. The customer bought and installed a compressor rebuild kit, which looked pretty straightforward, but it still doesn't have quite enough t...
2000 Lincoln Navigator 5.4L Poor Idle Quality, Poor Fuel Economy VIN: 5LMEU27A8Y
Thank you in advance to everyone's replies. The problem ended up being a lazy upstream oxygen sensor for bank 2. When I installed the new sensor, fuel trims immediately went down to under +5% both STFT & LTFT. As far as my MAF readings, I switched the setting ... Trouble codes: P1151 (Lack of HO2S-21 Switch Sensor Indicates Lean).
2004 Mazda RX-8 1.3L engine
Thanks to all who replied... recommended engine replacement. Interestingly enough the a/t version is $4000 and the more powerful m/t is only $1600!?!? So, after discussing the lack of options with the customer, he opted not to do the repair. just yet.
2000 Mercedes-Benz S430 4.3L 4 not ready VIN: WDBNG70J3Y
Thanks to everyone that responded. This vehicle has not been brought back to our shop for further testing. Will update at a later date. Thanks again.
2003 Mercedes-Benz E320 3.2L oxygen sensor VIN: WDBUF65J63
at this time the i rewired the o2 sensors with new pins and connectors. There has been no leaks found and all water drains are holding up well. the due to fact multiple oxygen sensors in the past has been replaced or shorting out. the o2 sensor harness has b...
2004 Mercedes-Benz S430 4.3L Poor Idle Quality, Misfire VIN: WDBNG70JX4
Its down the road and idling perfect. Mark and Rick hit the nail on the head. Egr was stuck. New Egr and its running perfect. Thanks for all the replies. I will keep all those in mind when I run into another one of these. Thanks guys. IATN is full of the smart... Trouble codes: P0500 (speed sensor), P0456 (purge control minor evap leak), P0101 (maf sensor signal and voltage).
2005 Subaru Outback i 2.5L Shift interlock VIN: 4S4BP61C45
Found that everything on fuse 14 circuit was dead (turn signals, key buzzer, key illumination, shift lock). Replaced wire from fuse 14 in engine compartment fuse box to pin 1 @ BIU connector B281.
1986 Toyota MR2 GT 1.6L Compressor VIN: JT2AW15C4G
Thanks to all the replies. My technician is not familiar with supercharged MR2s and was looking at the sc thinking it was the compressor (because it has a clutch on it).
2002 Toyota Avalon XL 3.0L MIL Lamp on VIN: 4T1BF28B32
The moral of this story ... Grounds, grounds, grounds ! As previously updated, I had located a bad ground on connector E4, pin 31 and had added a ground to rectify that. The heater circuits then began to function properly. I then got random o2 circuit codes P1... Trouble codes: P1135, P1155.
2003 Toyota Camry SE 2.4L Brake Pads VIN: 4T1BE32K63
Thank You all who replied. When the vehicle came back in nothing was binding or dragging.The general opinion is the driver is riding the pedal. He does have a bad back and even has trouble walking.The rotors were slightly discolored like they had been overheat...
2005 Toyota Tundra SR5 4.7L lock cylinder VIN: 5TBET34135
Thanks much to those of you that solidified my expectations. This is pretty much the nature of the beast. Larger tires may certainly add to the frequency of this concern for the customer. Grant also added a service bulletin that may be of some use for those of...
2006 Volvo XC70 2.5L Starting VIN: YV4SZ59266
I have not finished this vehicle yet due to the customer has not authorized the repair. After reinstalling the new CEM and deleting the nodes on the high side CAN one at a time and hitting the update tab on Vida after unhooking each node instead of rebootin...
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