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Prev Professional Automotive Repair Technical Discussions for September 26, 2012
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Open Help Requests for All Makes and Models
Help Request Answers
1991 BMW 535i 3.5L a/c VIN: WBAHD131XM
Hello there I have this BMW here that a cust brought in for the a/c not working. While looking I found the a/c button, the rear defrost button and the recurc button do not light up. The blower only works on high and when i switch to heater the air coming out w...
2003 BMW 540i 4.4L Sunroof and passenger door VIN: WBADN63433
Hello Everyone have this Bmw here and changed the sunroof lift arms as they were broken adjusted the glass and did the relearn and it has wind noise on the sunroof.I also have a problem with the passenger door making a rattling noise when the window is fully u...
2006 BMW X5 4.4i 4.4L park distance VIN: 1GMF895066
Please help on this bmw,park distance control light flashing scanned for codes and found two rear center sensor codes switched one out with one on the side and cleared codes expecting it to now show a code for side codes returned except for a pdc 22 ...
2007 BMW 328xi 3.0L Rear Defrost VIN: WBAWC33537
Vehicle came to me from body shop for rear defrost not working. Car had a rear collision, rear glass and bumper replaced. I have power and ground to rear glass but elements will not heat up and clear glass. I am getting a code from the JBE Junction Box "A6C8 r...
1997 Chevrolet Cavalier LS 2.4L Cuts out VIN: 1G1JF52T3V
I know this has been addressed before but---an issue with this car is driving me nuts. I have no history on this car. It was an auction purchase. It has been running and driving great until we pulled the instrament cluster to replace a couple bad bulbs. Now wi...
1999 Chevrolet C3500 5.7L No Start VIN: 1GBGC34R8X
See repair history
2002 Chevrolet Silverado 2500 6.0L MIL Lamp on VIN: 1GCHK24U22
Hi this truck came in with a double lean code cked fuel presure was low 48 psi tested and replaced fule presure reg and filter now I have 59psi code all 3 comes back long trims are at plus 25 checked for vac leak none found did see tsb for P0332 but cant see... Trouble codes: P0174 (lean bank 2), P0171 (Lean Bank 1), P0332 (Knock Sensor 2 Signal Short / Low)
2008 Chevrolet Aveo LS 1.6L MIL Lamp on VIN: KL1TD56658
Hey Guys, I just have a quick question. This aveo has a p0016 and p0340 as you can see from the other info I gave. The car runs fine. I ran a waveform on these and the correlation looks good based on a known good waveform I found in the data base here on IATN.... Trouble codes: P0016 (CKP-CMP Correlation), P0340 (Camshaft Position Sensor Problem)
2009 Chevrolet Malibu LT 3.6L Misfire, MIL Lamp on VIN: 1G1ZJ57799
Vehicle towed in. Would not start. Pulled codes Po300 and Po353. Removed front O2 sensor and got to run. Cleared codes and they came back. Swapped coil and plug from cylinder 3 no change. Scoped ignition control circuit at pcm have a nice square wave still no ... Trouble codes: P0300, P0353
2001 Dodge Ram 2500 Truck 5.9L Excessive Emissions, No Start, Cuts out VIN: 3B7KF23681
Hi group. This pickup came to me because of hard start, white smoke, and poor performance complaint. I tested fuel pressure first and found with the transfer pump jumped to battery, it would only make 3psi KOEO. Although once it did get up to 10 psi. I replace...
2002 Dodge Ram 1500 Truck 4.7L idle VIN: 3D7HA18N32
Hello all,hope your haveing a great day. I have just replaced a engine on 92 ram 1500 (4.7),and it has a missfire on cylinder's 3 and 7 at idle. After engine installation i found a bad connection at coil on cylinder #3,cleared code and test drove ok. Sat overw...
1996 Ford Explorer Sport 4.0L throttle response VIN: 1FMCU22XXT
After comming barley off idle computer comands the IAC to 45% and engine races at 2500 idle it is at 19% idleing fine checked TPS with modis O scope and checks out fine (customer replaced it with aftermarket)I have replaced the TPS and IAC and still hav...
1999 Ford F-550 Super Duty XL 7.3L Surge VIN: 1FDAW57F8X
truck came to the shop because loss of power under load, truck only goes 20 miles per hour on high aceleration if you let go the gas pedal the fuel pressure starts rising to 60 to 75 psi, but once you push the gas the fuel pressure goes to 5 or almost cero psi...
2006 Ford F-350 Super Duty XLT 6.0L Poor Idle Quality, Surge, MIL Lamp on VIN: 1FTWW31P46
Hey All, Struggling a bit with this one after what I thought was a pretty clear cut job and would appreciate any insights. Vehicle was towed in (30min after private purchase) as a quit while driving and no start condition, batteries fully discharged. MULTIPL... Trouble codes: P2284
2008 Ford F-150 XLT 4.6L Blend door VIN: 1FTRW14W18
Hi everyone, Thanks for taking the time to read this. The customer complains that he cant regulate the heat. He states that when he tries to Change the heat setting it has either cold or full heat. There doesn't seem to be an in-between setting. We could not...
2008 Ford F-250 Super Duty XLT 6.4L No Boost/ Low Power VIN: 1FTSW21R48
This truck has no/ very little boost. 1-3 Psi at best. Boost comes in and out. No boost leaks. Turbo does not seem to be spooling. Variable lever moves smoothly; vanes do not seem to be sticking. Hear a weird squealing/ screeching sound that we cannot pinpoint...
2000 GMC Yukon XL 1500 SLE 5.3L buzz or rattle noise VIN: 3GKFK16T8Y
Customer complaint of a buzz/rattle noise since I replaced the fpr. It can be heard and felt in the fuel lines from the tank up to and including the fuel rail. If I remove and plug the vacuum hose the noise/vibration is gone, pressure is 60psi unregulated and ...
1998 Honda Accord EX 3.0L srs lamp VIN: 1HGCG1654W
Hi Honda Techs Hands are in the air. Please Help. Thanks in advance. Super clean low mileage car. Appears never to have been in a wreck. Repeat customer stated srs lamp began to flash randomly. At time for service, request for checking airbags was added to se...
2002 Honda Accord LX 2.3L Transmission VIN: 1HGCG66502
Honda techs help! Car was brought in with burned up transmission, customer opted for used unit in lieu of OEM. After installation, on test drive, found 1-2 shift slip and bang. Performed minor diagnostics, felt used unit was defective. Replaced with second use...
2007 Honda Civic EX 1.8L Compressor will not turn off VIN: 1HGFA16877
This is not so much a help request. I have not seen a fix as to how to test the control head for A/C switch operation. I do know that the A/C relays stick on these systems. As per Mitchell wiring diagrams there is no clear cut wire for A/C button out. What the...
2003 Hummer H2 6.0L 1-2 Shift VIN: 5GRGN23U23
Hey Guys, So Ive been scratching my head for the last few hours on this one. Vehicle has 4L60 Trans. Vehicle seems to be stuck in first gear. Reverse works fine. Cannot manually select and get vehicle into 2nd or 3rd gear. Did notice that when I manually place...
1997 Isuzu Trooper LS 3.2L lifters noise VIN: JACDJ58V4V
Hi, there i'm working on this vehicle tryng to quiet the lifters noise, other shops replaced all lifters,but forgot to inspect and clean the sistem,so i found the intake rocker arm shafts w/the bleeding holes plugged w/ deposits and damaged. I repalced 12 lift...
2004 Jaguar X-Type 3.0L Hesitation, Surge, Cuts out, MIL Lamp on VIN: SAJEA51C34
at 3000 rpm car acts like rev limiter kicking in. looked for vac leaks and checked fuel presure.Don't see any thing on scanner. Trouble codes: P0300 (p0301-), P0301 (p1313-), P1313
2005 Kia Spectra EX 2.0L Surge, High Idle VIN: KNAFE12105
This car runs GREAT customer concern is the idle creeps up and drives itself at times. They shut it off restart it and it runs fine agian. We cannot duplicate this concern but have tried a know good tps from a parts car we have and the concern was still there....
2006 Kia Sorento EX 3.5L Engine and coolant VIN: KNDJD73356
This car is having a bad problem overheating I have check all that I know too I work on heavy desiels more than this smaller stuff so ill day what I've checked and if I missed something could you just let me know thank you. It started running hot one day so th...
2001 Land Rover Range Rover SE 4.6L car cranks by it self VIN: SALPL16491
good day guys i have a new for me. i just brought a 2001 land rover thought i got a good deal. well last night the intera lights would come on by them selves then the head lights the the alarm would go off so i disconnecthed the battery went back to car and co...
2006 Land Rover LR3 HSE 4.4L front wipers VIN: SALNM22262
Hello Group, I've been struggling with this one for a few days.Front intermittent wipers are intermittent.The central junction box is not receiving its ground signal from the wiper motor park switch when wiper switch is in the intermittent position.Occasional...
2008 Lexus RX400h 3.3L Struts VIN: JTJHW31U28
We have a lexus rx400h that makes a clunking/banging noise in the rear that starts ovr a small bump and stays with the car for a few seconds,sounds like a bad strut but the struts look good no leaks,we removed the left rear strut and dissassemble it from the c...
2003 Lincoln LS 3.9L Hesitation, Cuts out, goes in to fail safe VIN: 1LNHM87A23
This car came in with both P2107 and P2110. Customer says that it will go in to fail safe mode every few days and not accel over 20 mph. Throttle Body Passing Test and no missfire codes. Read about coil interference causing this code to set but could not find ... Trouble codes: P2107 (Throttle Actuator Control Motor Processor throttle Actuator control System), P2110
1996 Mercedes-Benz E320 3.2L Low Coolant Sensor VIN: WDBJF55F9T
Information center says display defective with the coolant picture. Unhooked coolant sensor, same, shorted 2 wires togerher, same. Replaced coolant level sensor, same. Dont have a scan tool that will communicate with it. Also have an hvac problem. Hvac control...
2001 Mercedes-Benz ML320 3.2L Drive belt VIN: 4JGAB54E81
After having installed a new tensioner and belt to get rid of the belt squeel, it has now thrown the belt off and was towed in. Belt did not shred, and there is no oil on the belt. I installed a new belt, and all seems well. There is a minor wobble from the ne...
2005 Mercedes-Benz E320 CDI 3.2L MIL Lamp on VIN: WDBUF26J25
I usally dont work on diesels but a good customer,not much info from my scanner it only shows codes.i saw a tsb to replace fuel rail as the volume control valve is not replaced seperately (in the tsb it shows two different part numbers for fuel rail do i need ...
2006 Mercedes-Benz SLK280 3.0L A/C compressor VIN: WDBWK54F46
Vehicle came in with no cooling A/C, pressures were equal at 90 lbs, evacuate and recharge with proper level of freon, check voltage from front SAM to comp: 10.5 volts. Scan for codes in A/C (limited access using Autel scanner), retrieved code 9000, The compon...
2007 Mercedes-Benz E350 3.5L Steering Angle Sensor VIN: WDBUF56XX7
Please let me know if there is any kind of tricks in replaceing Steeing angle sensor with its module.Steeing angle sensor and its module is one piece .
1988 Merkur XR4Ti 2.3L fuel guage VIN: WF1BT80W3J
All I am looking for is the wiring schematic for the sending unit on top of the tank. Specifically the wire colors and voltages (power/ground) here are 6 wires. The vehicle runs but the guage and light do not work. Thanks
1970 MG MGB 1.8L Hesitation, Cuts out, Misfire VIN: GHN5UA2036
Have this low low mileage mint MGB that is driving me nuts. Customer complained the car would just shut off while driving. then restart a few minutes later. I drove it and had it quit. I could not hear the fuel pump so I got under the car and smacked it with t...
2009 Nissan Versa SL 1.8L idle VIN: 3N1BC13E49
This is a tough one, this car has low mileage and has a slight rough idle, enough to cause a p0300. I cant seem to pinpoint the cause. After its warmed up it seems to run rich for a few seconds but a/f quickly evens out. I isolated the injectors and checked fo...
1988 Oldsmobile Cutlass Supreme SL 2.8L Hesitation, Surge, Stall VIN: 1G3WS14W0J
Need help one this one. Car came in, would start but as soon as you cracked the throttle it would lean out and die. Had a code 33 and 44 map sensor code and lean code. Check fuel pressure and it shows good at 35 lbs an with good volumn. This system has been up... Trouble codes: 33 (34 -), 34 (44 -), 44 (64 -), 64 (testing and results)
2004 Pontiac Bonneville SLE 3.8L ride VIN: 1G2HY54K64
This has been a tough one- it has caused us grief for a while (more than a year). It has an unusual and what I call a harmonic type of vibration- worst at 75 mph, which comes and goes in about 5 or 6-second cycles. Mostly noticeable in the floorboards or seat,...
2002 Subaru Legacy L 2.5L Hesitation VIN: 4S3BH63582
Car came in for low power, Per owner he went to exh shop for small leak in front of the muffler. The exh shop recommended a new front converter. Unknown reason. Customer states car a ran good until cat was replaced. There was one code PO172 Rich B1 when I go... Trouble codes: P0172
2003 Toyota Camry LE 3.0L MIL Lamp on VIN: JTDBF30K53
Trace electrical and checked values. Test drove after repair and cycled ignition mil stayed off. Custome picked up vehicle and mil came back on. Have any of you guys run into something like this?? Thanks in advance Trouble codes: P2238
2003 Toyota Camry LE 3.0L 2-3 shift VIN: 4T1BF30K63
car came in on a hook,we overhauled trans has 2/3 flare,we tried 4l60e sealing rings on rear cover, still same problem,i am not sure if there is a processor problem with this car please help.
2003 Toyota Solara SE 3.0L airbag VIN: 2T1CF28P53
code b1140, vehicle came in with code , test procedure was to clear code then retest. Cleared code, did not return, checked wiring and replaced rf side airbag sensor assembly. Code returned and is now hard fault, wiring and testing is inconclusive, any help wo...
2007 Toyota Camry Hybrid 2.4L master cylinder VIN: 4T1BB46K07
This hybrid Camry persitantly makes a strange "hoot" noise when stepping on brake pedal even stationary with all power off. Listening w/stethoscope, noise appears to be coming from a hydraulic line between master cylinder and accumulator/ABS module on R/F of ...
2008 Toyota Camry SE 2.4L Forward Gears VIN: 4T4BE46K78
Vehicle was brought in with rear main oil seal leak. Removed transmission to install new rear main seal. Reassembled and leak is no longer present after six mile test drive. Customer drove vehicle for 15 miles and lost all forward gears but reverse still works...
2008 Toyota Camry Hybrid 2.4L Hybrid wiring VIN: 4T1BB46K68
Upon re-assembly of this car I noticed a small high voltage wire (orange insulator with about 3 inches of black tape around the first 4 inches of the wires) with a eyelet of the same size as the HV cable end connector laying close to the HV cable/HV battery mo...
1996 Volkswagen Jetta GLS 2.0L MIL Lamp on VIN: 3VWSA81H4T
This customer bought this vehicle as is with a VR6 conversion done prior to owning & does not know what year engine is. The code P1475 should not be displaying according to TSB 20-95-07 this TSB states leak detection pump was installed but was not activated & ... Trouble codes: P1475 (Evap emission control leak detection pump circuit malfunction no signal)
1998 Volkswagen Cabrio 2.0L No Start
Hello guys and thanks in andvance to all IATN members who are reading and responding to others,well i have this VW cabrio that i got lost finding the rpoblem,it was towed in to my shop with no start problem and the car was in other shop for a while with the sa...
2005 Volkswagen Passat GL 1.8L starter VIN: WVWAD63855
e was needing some help vehicle was towed into my shop a comlant of a no krank condition checking for power to starter had power we replaced starter no ching fuses are all good repllaced ignition switch no ching scanned no cods found we chik comfort control mo...
2008 Volkswagen Beetle S 2.5L Hydrolic System VIN: 3VWRG31C68
hi, any help for any common problem on this beetle on brake master sticking? thanks in advance...
2009 Volkswagen Passat Komfort 2.0L No Start VIN: WVWXK73C89
car came in for a noise ,,, sounded like ider pulley went bad,,, had technician pull front cover & turbo,,,removed drive belts to make sure noise wasn"t ALT or WATER PUMP
2000 Volvo V40 1.9L timing VIN: YV1VW2553Y
Timing faults specific to VVT and probable tooth off condition. Upon removal of covers, I was able to verify the timing marks do line up correctly, however, I know without the right tool used on the back side of the camshafts, it is possible to be off but stil...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2002 BMW X5 4.4i 4.4L Hydraulic Tappet VIN: 5UXFB33542
So I removed the Check valve on Bank 2 cylinder head behind the VANOS solenoid and replaced it with a new one. The noise has gradually gone away so at this time it is fixed.
2001 Chevrolet Tracker LT 2.5L Ammonia Smell VIN: 2CNBJ63461
Thank you to everyone that responded! I inspected for a mouse nest and found nothing. Additionally I did check battery and charging system and no problems found, no traces of acid either. I determined it was a bad cat but the customer could not afford it so he...
2006 Chevrolet Express 3500 LT 6.0L Hesitation VIN: 1GCHG39U16
customer doesn't want to spend any money sorry guys no fix Trouble codes: P0102, P0300, P0175, P0172.
2007 Chevrolet Uplander LS 3.9L transmission VIN: 1GNDV23167
Hey I agree with most of you, should be bebuilt, but I do whats asked of me these days. I tell them and they sign off and this vehicle has a bad radiator. It is too hot. They was told about this too and will sign off on work order they refused at this time. So...
1996 Dodge Neon High Line 2.0L Poor Idle Quality VIN: 1B3ES42C1T
Thanks For all that replied I am currently Seperating wires in the harness for wires shorted together
2000 Dodge Intrepid 2.7L Mechanical VIN: 2B3HD46R1Y
2002 Dodge Grand Caravan Sport 3.3L No Start VIN: 1B4GP44312
sorry it took so long. I ended up finding more wires in the main harness that was bad. Talked to cust told him he needs all new engine compartment harness. Just got the ok to find one and put it in. Thanks for your help.
2004 Dodge Ram 1500 Truck ST 5.7L Poor Idle Quality, Stall, Misfire VIN: 1D7HU18D24
Even though O2s appear to be reading normally with no O2 codes they were faulty- full set of sensors now and runs perfect. PCM was seeing bank one lean so fouled the plugs at idle causing misfires. Resseting the fuel trims made it run fine for a while untill P... Trouble codes: P0300 (Multiple misfires).
1994 Ford Explorer Eddie Bauer 4.0L Alternator VIN: 1FMDU34X8R
All of the help i received nailed it down to an issue within the instrument cluster. I also had numerous issues with aftermarket alternators not being accepted on the ford vehicle. After i had put a ford alternator in the vehicle the charge rate lowered to ...
2002 Ford Taurus SE 4-Valve 3.0L No Start VIN: 1FAF953U62
well after 5 hours of digging and hunting i foud the problem. it was the fuel pump that was bad .it grounds itself . so if you get one that has power on the red and white wire and no power on the pink and black wire the fuel pump is the problem.thanks to every... Trouble codes: 1233 (fuel pump module).
2006 Ford F-250 Super Duty XLT 5.4L Hesitation, Misfire VIN: 1FTSX21536
SPARK PLUG! Thought plug was going to snap in head even warm and soaked in pentrating oil. Swapped injectors first because it was easier! still no change. Replaced spark plug and misfire on #1 cylinder is clearly gone. Even still OTC scan tool shows Bank... Trouble codes: P0301.
2005 GMC Safari 4.3L Misfire, MIL Lamp on VIN: 1GKDM19X65
Thanks for everyones input and suggestions. the culprit was a defective sparkplug on #1 cylinder Trouble codes: P0300.
2005 Honda Civic Hybrid 1.3L first starting out VIN: JHMES96675
Thanks to all that replied, turns out customer tried Dr. shudder additive and will let me know how it turns out later.
2006 Honda Accord LX 2.4L Head gasket VIN: 1HGCM56456
Well I am releasing the vehicle today. All went well just as many of you said it would (baring my little mishap). Vehicle is running good with only a little idle fluctuation every so often sitting at a light. I am hoping it will go away but if could have been ...
2003 Hyundai Santa Fe GLS 3.5L egr VIN: KM8SC73E93
Thanks to all. Esp Richard. Very confusing pic's. Alldata, michelll, hyundai all show egr pic's with and without the egr vacume control valve for 3.5 Hyundai's. My Santa Fe did not have one, but the answer was 2 missing orifices that should of been in (hidden)...
2002 Jeep Grand Cherokee Limited 4.7L power steering VIN: 1J8GW58N92
Thanks to everyone for the great help. I had checked everything that everyone had suggested here before I posted this help request except the slipping balancer ring which proved to be ok. I ended up installing the owners original parts and the Jeep went back t...
2004 Jeep Grand Cherokee Laredo 4.0L extended crank cold VIN: 1J4GW48SX4
After watching the fuel pressure of several hours it had dropped to 25psi. I replaced the fuel pump and problem is gone. Thanks to all who helped and gave advice.
2003 Land Rover Range Rover HSE 4.4L Engine Block VIN: SALME11473
We repaired the broken block with J-B Weld and filed the area flush on both sides. The front side for the starter mounting and the rear side for where the bellhousing mounts. We also installed a new starter to be safe. Starts and runs like a champ. The bel...
2002 Mercedes-Benz C240 2.6L No Start VIN: WDBRF61JX2
Sorry for the delay, it's been kind of busy around here. Thanks for all the replies greatly appreciated. The problem was in fact the crank sensor. Honestly kinda shotguned it. Thankfully it worked. Trouble codes: B1036.
2005 Mercedes-Benz E320 CDI 3.2L MIL Lamp on, limp mode VIN: WDBUF26J45
turbo fixed problems, found a very small nick in exhaust impeller.. replaced turbo and code did not return yet Trouble codes: 23591.
2005 Mercury Mountaineer 4.0L Torque Converter VIN: 4M2ZU86E65
First, I apologize for my utter lack of spell ckeck...What we tried this AM was drive the truck with the Modus, no wonky PID's. Plug in the EVO Genesys, now the spike is on the TCC slip RPM's. This is why God invented the OBD Y connector. It's the scan tool. C...
2001 Nissan Maxima GLE 3.0L Power Windows VIN: JN1CA31D71
thanks for the replies, after reading several were telling me to check power on power and ignition feed wires to switch which i had, but after closer examination, they were not in correct pin locations, connector didnt appear to have ever been tampered with an...
2006 Nissan X-Trail SE 2.5L Blower motor VIN: JN8BT08V46
Thanks for the replies. Yes the blower assembly has to come out. Not a bad job. After the ECM is removed and all the wires disconnected there are only 3 bolts. 2 are easy to see and the 3rd is lower left side. The blower motor from the dealer comes with t...
2007 Toyota Tundra SR5 4.7L no start VIN: 5TBRT54197
Finally got this fuse panel figured out. Would like to thank Shawn for letting me know it is called an integrated fuse link(IFL). The dealer didn't have a clue what I was talking about until I told them what it was called. The nice part was it only cost $38. ...
2000 Volvo S70 GLT SE 2.4L No Start VIN: YV1LS56D0Y
Thank you for replies. Problem was faulty key. Customer dug up spare after 2 days, tried it and vehicle fired up. Trouble codes: 720A.
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