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Prev Professional Automotive Repair Technical Discussions for August 13, 2014
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Help Request Answers
2011 Audi A4 2.0L Cam Timing VIN: WAUAFAFLXB
Car came in on the hook with a crank but no start condition. We verified the cam timing was off by pulling the upper cover and seeing that the marks do not line up. (car was not seized, as it did crank. We removed the timing chain and found worn tensioner and ...
2003 BMW M3 3.2L Misfire VIN: WBSBL93403
Got this car in from another one of our locations. Bank 2 cat and the throttle acuator were replaced. Since then the vehicle has a slight misfire that was not happening prior to repairs. most noticable while warming up after a cold start. They replaced plugs, ... Trouble codes: 208 (misfire 4), 209 (misfire 5), 207 (misfire 3), 210 (misfire 6), 213 (misfire multiple)
1999 Buick Park Avenue 3.8L compressor VIN: 1G4CW52K8X
hello techs. i just put an ac compressor and acumulator orifice tube in this car the old compresor was leaking,but still with one pound of fre-on in the compressor,it wont come on and the security light is on ,and the traction light,air bag light ,...
1991 Chevrolet V1500 Suburban Scottsdale 5.7L steering pump VIN: 1GNEV16K3M
This is a TV station vehicle on a 1/2 ton chassis and has a satellite system on it. It is severely weighted down. The power steering pump was leaking when it first came in. We have replace the pump and gear box 2 times within 50 miles of each other. When we ...
2000 Chevrolet Astro 4.3L Hesitation, Surge, Cuts out, MIL Lamp on VIN: 1GCDL19W2Y
This van idles great and revs up in the shop just fine, but driving down the road after warm it is worse and under a load bucks and looses power. Fuel pressure is good and doe's not drop, we replaced Mass air flow sensor and the P0102 code says mass air flow s... Trouble codes: P0102 (Mass air flow low)
2007 Chevrolet Cobalt SS 2.0L engine VIN: 1G1AP11P27
hi guy was looking for some help.i have this 2007 cobalt ss (super charged) that keeps setting a code p2135(reduced engine power).the customer bought the car and had it for 4 days when it started doing all had already a used throttle body installed,it ...
2007 Chevrolet Express 2500 4.8L shift VIN: 1GCGG25V87
Van came in with reverse gone and slips in drive. We tore down tranny and direct clutches were smoked. we replaced all the bushings and installed new boost valve. we checked valve body for cracks and found none. We also checked the two problem check balls in v...
2008 Chevrolet Suburban 2500 LT 6.0L MIL Lamp on, limp mode VIN: 3GNGK26K98
Thanks in advance for any help with this. I'm this posting for my Technician and can supply additional information if requested. This vehicle is one of our News trucks that we service and there is no prior history regarding this problem. This vehicle was towed... Trouble codes: P0700 (Transmission control Module), U0121 (lost communication with abs system), P0575 (cruse control switch signal circuit), U0102 (lost communication with Transfer case control module), U0100 (lost communication with ECM/PCM), U0140 (Lost communication with Body Control System Erratic)
2009 Chevrolet Express 3500 LS 6.0L Poor Idle Quality, Hesitation VIN: 1GAHG35K49
Hello fellow techs, The van in question has a rough idle and while driving under light acceleration there is a hesitation and it throws a p0106 code. There are no misfire codes but every once in a while you can feel a slight misfire. This car had a MAP sensor... Trouble codes: P0106
1997 Dodge Ram 1500 ST 5.2L MIL Lamp on VIN: 3B7HF13Y0V
Vehicle was brought in with the check engine light, abs and red brake lights on. We do not have any communication with any module. The engine starts and runs ok and now the check engine light is not on but does the normal bulb check when first started up. The ...
2006 Dodge Ram 1500 TRX4 5.7L limp mode VIN: 1D7HU18266
found excessive resistance on lr solenoid replaced solenoid unable to complete quick learn error message on verus 169 still in limp mode cleared codes several times transmission temperature has voltage reading on scan tool verified with volt meter but degrees ...
2006 Dodge Ram 2500 SLT 5.9L compressor VIN: 1D7KS28C56
Vehicle came in with no a/c. Hooked up gauges and press are good. No compressor clutch activation. since it is controlled by the tipm, their is no relay to check.. when u cycle the a/c switch inside the cab the engine changes sound and acts like the clutch is ...
2006 Dodge Sprinter 3500 2.7L MIL Lamp on VIN: WDXPD84486
This truck is giving us a hard time. Came in needing a turbo, oil pouring out of it. Installed new turbo, cleaned all of the tube covered with oil, test drive and the truck runs great shifts great until the turbo spools up a couple of times and goes into limp ... Trouble codes: P0299
2009 Dodge Sprinter 3500 3.0L Lacks power on accel VIN: WD0PF4AC69
This vehicle has a lack of power on takeoff from a stop. After about 5 seconds it will accelerate fine and no further issues. Feels like a turbo lag. There are no trouble codes. The only thing we found is a small leak in the intercooler. We replaced egr cooler...
2004 Ford F-150 XL 5.4L engine VIN: 1FTVX12524
Engine has a noise at idle that is best described as a lifter noise that gets louder with engine temp. Removed both VCT solenoids expecting sludge build up. None found. Bank 2 solenoid had pieces of screen missing so it was replaced. Had a Fram oil filter on, ...
2005 Ford Taurus SE 3.0L Hi Pressure line VIN: 1FAHP53285
Attempting to replace the hi pressure line from condenser to evaporator (long aluminum pipe with orifice tube inside). Spring clip slip fitting at evaporator (near firewall) is frozen and will not budge. Correct spring release tool is being used but pipe appea...
2010 Ford F-150 STX 4.6L MIL Lamp on VIN: 1FTMF1CW5A
Ok Guys I have this truck with "lean code" 0n 1bank , Im not really worried about trouble shooting the problem but I'm puzzle when I was trying to get upstream o2 sensor reading it says "impedance voltage 1v" Im not familiar with this it looks to me that this ...
2006 GMC Sierra 1500 WT 5.3L engine VIN: 2GTEK19B56
initial problem fans come on with engine off kill battery charged battery start engine cut ac on shuts down engine in 10 seconds Freon amount good compressor not locked up engine will run with ac on but with belt off
2004 Jeep Grand Cherokee Overland 4.7L Poor Idle Quality VIN: 1J8GW68J54
HI Everyone Got A jeep Here 4.7 Came in with Coolant getting in the Number 1 Replaced Head Gaskets Milled Head .005 replaced valves Replaced timing Tensioners and guides now it runs rough at idle long term fuel trim on left bank is a -32 and left bank right b...
2004 Kia Spectra EX 2.0L MIL Lamp on VIN: KNAFE12154
Greetings everyone in the wonderful world of miracle workers. I have this KIA that has landed on my doorstep after every shop in town has been trying to figure it out. Customer states vehicle ran great. No check engine light on, no problems whatsoever until th... Trouble codes: P0340 (Cam position sensor), P0563 (system volts high)
2006 Mazda 6 Mazdaspeed 2.3L MIL Lamp on VIN: JM1GG12L46
Have this MazdaSpeed 6 setting an intermittent P0300. We replaced the spark plugs 3K miles ago for maintenance purposes only, no drivability issues. Recently the vehicle has a check engine light and also will not start right up (usually have to crank twice to ... Trouble codes: P0300 (Random Misfire), P0401 (EGR Insufficient Flow Pending Only)
2002 Mercedes-Benz SLK230 Kompressor 2.3L Airbag system VIN: WDBKK49F52
SRS light on, checked codes, #33 continues to reappear. "Failure to communicate with pass door airbag impact sensor under pass seat". Swapped sensor from driver side, changed harness connector, swapped airbag from driver side, swapped control unit from another...
2004 Mercedes-Benz E320 3.2L instrument cluster VIN: WDBUF65JX4
First lets say thank you in advance!!! You guys are great when my mind goes blank... the vehicle came in with the instrument cluster going dead at times. Found that when you turn the right turn signal on. The cluster will switch off then back on like you turne...
2001 Nissan Altima GLE 2.4L Cuts out VIN: 1N4DL01A61
okey techs from iant i have a good one for you guys this car is given me a hard time, we allready replaced 4 fuel pumps and they all present the same issue when car is cold everything is fine , when its runnig for a period of time and engine gets hot if you hi...
2008 Subaru Impreza Outback Sport 2.5L Clutch throw out bearing VIN: JF1GH63628
One of my techs Installed a new clutch and all the related parts about 7000 miles ago. The vehicle came into the shop initially with a screaming throw out bearing, the inner bushing had melted on the the input shaft when the Throw out bearing failed. Customer ...
2010 Subaru Impreza WRX 2.5L oil leak VIN: JF1GH7G64A
hello I have a 2010 wrx with a massive oil leak from the front of the engine I removed the t-belt and pulleys and nothing is jumping out at me for the amount of oil that was pouring out has any one come across this or have any ideas maybe the oil pumps leak I ...
1998 Toyota T100 SR5 3.4L Lighting VIN: JT4UN24D1W
The Tail lamp fuse keeps blowing out every week or so, I unplugged front and rear lamps were I could check over wiring and still blows tail lamp fuse.
1999 Toyota Avalon XL 3.0L MIL Lamp on VIN: 4T1BF18B1X
I thrown the kitchen sink at this one. Vehicle won't set cat monitor and keeps setting pending code po420. Looking at repair history we done everything possible. no exhaust leaks. all other monitors set except EVAP. Need assistance or input Trouble codes: P0420
2008 Toyota Sienna XLE 3.5L Compressor
Toyota techs, A weird one here, atleast for me, which may be in part to lack of knowledge with the system, but here it goes. Vehicle came into the shop with a complaint of the ac system not producing cold air through the vents. Basic checks revealed the sys...
2004 Volkswagen Touareg V8 4.2L Poor Idle Quality, Cuts out, Stall VIN: WVGCM77L94
Car came in from a car lot with notoriously troublesome vehicles. Complaint was car dying at irregular intervals, always restarted immediately. First testing found fuel pressure at around 10-20 psi, floundering idle quality, and engine died upon throttle appli...
2005 Volkswagen Touareg 3.2L front diff bearing VIN: WVGLG77L65
have removed front diff and found metal debris in oil,i am trying to find rebuilding specs have found bearing part # carrier pin seems maybe held in with roll pin cannot find rear exit hole, special tool?? ,procedure ??any help would be great thanks
2002 Volvo S60 AWD 2.4L hard starting VIN: YV1RH58D62
"C:\Users\Brian\Desktop\img258.jpg" Thanks for responding all. Just wondering if anyone has a known good CKP/CMP correlation waveform on this vehicle. Replaced locked up motor recently and initially hard to start with excessive crank time and sets 5200 Manufac... Trouble codes: 5200 (RPM sensor -manufacturer specific)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 BMW 740iL 4.4L Hesitation VIN: WBAGH8342Y
Disconnected M A F sensor motor responded very quickly!!! scan values were acceptable,??? New M A F runs great. Thanks for the good inputs. Thanks Len
2002 BMW 525i 2.5L Oil seperator VIN: WBADT43482
Thank you very much iATN community. Got parts from the dealer and removed and installed in 1.5 hrs. Half hour of it was spent cleaning the dipstick tube (should have taken Sisco's advice and replaced it). Braking off the old hoses definitely saved time. Thanks...
2002 Buick Rendezvous CX 3.4L temp guage VIN: 3G5DA03E22
Thank you for all of your help. I was able to check another car out with the same engine. As most of you said, this vehicle is operating as designed. The low speed cooling fans come on at 224 degrees and the high speed fans come on at 230 deg. This is norm...
1996 Chevrolet C2500 Suburban 6.5L Dome Lamp VIN: 1GNGK26F7T
Thank you for the help. I found the problem. Sorry I don't have the circuit number, but I found conflicting diagrams in both Alldata and MOD and the vehicle itself, and did not want to put out incorrect information. So I worked back from the lamp with my fox...
2008 Chevrolet Uplander LT 3.9L Electronic VIN: 1GNDV33138
sent to dealer and had them check it out and they said they ran recalibration ON THE HVAC that fixed the problem.
2007 Chrysler PT Cruiser GT 2.4L Unknown VIN: 3A8FF68807
I think the problem was the system had to much oil, I flushed everything out and added the correct amount oil and it had 42 deg air.
1996 Dodge Ram 2500 5.9L Mechanical VIN: 1B7KF26C6T
Hi Guys Sorry it took So long I exhausted all my leads and found that my problem was tied to the vac booster building vacuum after being depleted by pushing the brakes I found a old fix in the data base about this being normal so I converted it to Hydro boost ...
2005 Dodge Grand Caravan SE 3.3L pcm VIN: 1D4GP24E65
Hello everyone: Thanks for all replies. Have not fixed this car, as i explaine in the post that it belongs to a body shop. I was able to get it started with the old/original ECM and was surprised it ran, because it is cracked due to colision. All the info i go...
2006 Dodge Ram 1500 ST 4.7L Compressor VIN: 1D7HA18N26
Sorry for the delay, just wanted to give the customer a chance to drive the vehicle after this latest repair. We tore down the system agian and inspected the compressor. After rotating the compressor backwards it freed up. But during foreward rotation it ha...
2007 Dodge Nitro SLT 3.7L dash lights tachometer VIN: 1D8GU58K97
Thanks to those who replied. The tachometer momentarily dropping out and a chime sounding along with the dash lights coming on made us suspect a power loss when in fact it was a symptom of the bus communication being corrupted. After rethinking our strategy we...
1995 Ford Ranger Splash 3.0L heater ,a/c VIN: 1FTCR10UXS
yes I believe its a blend door because when I try and adjust it from hot to cold it only stays in hot I can put my finger on the blend door act and feel it move but heat still comes out except when in recir mode I like the idea of fixing it the correct way and...
2006 Ford F-250 Super Duty XLT 5.4L MIL Lamp on, low power VIN: 1FTSW21596
Thanks everyone for the responses, though I'm think some of the responses were made without reading the info I provided. So it boils down to the customer not wanting to spend mega money to fix. He got scared when we explained shop rate x hours spent = large bi... Trouble codes: P0171, P0174.
2007 Ford F-250 Super Duty XLT 5.4L Hesitation, Cuts out VIN: 1FTSX21537
thanks to all of you for your help.ronald from ohio was right on the money, all it turned out to be was spark plugs in the end.thanks ronald, if it werent for you id still be chasing this. ican only assume that the gaps being so big on the plugs the coils coul...
1993 Honda Accord LX 2.2L srs light VIN: 1HGCB7653P
Customer did not want to wait any longer for the fix. We tried a used module in it that did not work. When putting it back together I am almost certain that three big name sources for wiring diagrams is wrong. When putting back together the horn did not work a...
2003 Hummer H2 6.0L Brake Pedal VIN: 5GRGN23U23
The customer has been driving this vehicle for a few weeks now without any change in the feel of the brake pedal. The customer is willing to return the vehicle, but that won't happen for another month or so when he has time to leave it for a while. When he r...
2000 Jaguar XJ8 4.0L Converter VIN: SAJDA14C2Y
Rick from NC is correct. The input shaft sealing ring was damaged causing pressure to bypass. I'm not much of a Jaguar guy but I have learned something today that will carry on into other car lines as well. Thank you all for your input/advice. I am greatly ...
1998 Jeep Wrangler Sahara 4.0L Fuel gauge VIN: 1J4FY49S3W
Hi all!! This Jeep needed a reflash of the computer. We don't do that here so our customer took it down to the dealership and all is well! Thanks everyone!' Tim
2005 Jeep Liberty Sport 2.8L insufficient fuel preassure VIN: 1J4GL48575
injector nr 4 wire was swapped with fuel pressure regulator, figured it out after scoping all injectors and fuel pressure regulator. Plugs are identical
2005 Jeep Wrangler X 4.0L cooling system VIN: 1J4FA39S95
First off, thank you everyone who replied, trying to help fix this vehicle. I pulled the pump, and everything else that was mentionoued within this post with nothing unusual found, that would cause the overheating. Since I had no where else to go, I pull...
2006 Jeep Liberty Sport 3.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4GL48KX6
we noticed when engine was at operating temperature a slight difference in the o2 sensors reading between right and left bank and right bank,we decided to recheck the o2s when engine cold and monitor the misfiring count at the same time, we found bank 2 up str... Trouble codes: P0300.
2006 Lamborghini Gallardo 5.0L Brake wear indicators VIN: ZHWGU12T76
Thanks to all who offered assistance. We checked the ohms reading at each brake wear indicator. They were all .666 and we could not find any bad connections. Customer decided to take the car to a Lambo specialist. Thanks again. John Sr.
2008 Land Rover Range Rover Sport Supercharged 4.2L tilt telescopic steering column VIN: SALSH23428
thanks to everyone who replied. I found the tag on the bottom of steering column and used the Autel scanner to code, works perfect.
2007 Mazda 3 Mazdaspeed 2.3L MIL Lamp on VIN: JM1BK34M87
Thanks for all the replys. The engine is junk due to overheating and related damage to all rod, crank bearings, oil pump and all cam journals .Low oil pressure caused the dtc by not delivering enough pressure to operate the oil control valve... Trouble codes: P0012.
1996 Mercedes-Benz C280 2.8L MIL Lamp on VIN: WDBHA28E0T
Thanks for all the great replies. As you all stated, we did not time this engine correctly. Timed it with the intake cam advancer rotated clockwise as looking at it from the front, not the seat! Spun it over twice and the marks lined up. Thanks to all! Trouble codes: P1341.
2006 Mercedes-Benz E350 3.5L MIL Lamp on VIN: WDBUF56JX6
Well here I am ready to dig in with all this great info but when I told the customer what it could cost he was not ready to go any further. Thanks for all the help. The sight with diagrams is kick butt. Regards to all. Brad
1985 Nissan 300ZX 2 2 3.0L Shifting. VIN: JN1HZ16SXF
I greatly appreciate all of the help. The customer has decided at this point to drive the vehicle until the transmission quits altogether and then have the complete unit rebuilt. Thank you to all of you for your responses. God Bless.
1998 Nissan Pathfinder XE 3.3L converter
shimmed the starter. noise is gone. bendix must not have been pulling in all the way
2004 Nissan Sentra 1.8L MIL Lamp on VIN: 3N1CB51D14
found a broken wire, this wire is feeds the trans module.Repair the wire and fixed the problem thanks to all techs for the help Trouble codes: U1000 (When ECM is not transmitting or receiving CAN communication signal of OBD emission related diagnosis for 2 seconds or more.), U1001 (When ECM is not transmitting or receiving CAN communication signal of OBD emission related diagnosis for 2 seconds or more.).
2005 Nissan Frontier XE 2.5L Poor Fuel Economy, MIL Lamp on VIN: 1N6BD06T65
After relearn the truck's ECU seem the problem fix. I drove it for 2 weeks the MIL not coming back. Thanks for your help. Duc [...] Trouble codes: P1237 (A/F sensor 1 fail).
2005 Nissan Altima S 2.5L engine VIN: 1N4AL11D95
The decision was made to install another used engine which solved the noise issue. Thanks for all the good replies.
2000 Porsche 911 Carrera 3.4L Cooling System VIN: WP0AA2995Y
2003 Toyota Matrix 1.8L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 2T1KR32E53
Well folks, I feel pretty dumb right now. Figured this one out after talking to Toyota about all the recalls on this model. Had found TSB's on the PCV system so I got a diagram from them. Had two hoses in wrong. The PCV hose was going to the TB instead of the ... Trouble codes: P0300 (Multiple random misfire), P0301 (Cylinder 1 misfire), P0302 (Cylinder 2 misfire).
2005 Toyota Tundra 4.7L seal VIN: 5TBKT421X5
Thanks to all who responded. It appears that I had 2 problems. One the differential vent was stuck shut, and 2 I pressed the collar on too far for the seal. Special thanks to Joe [...] who offered to give him a call if I needed. That is what makes IATN great. ...
2008 Volkswagen Jetta GLI 2.0L Surge, MIL Lamp on VIN: 3VWDJ71K48
As we continued working with this vehicle we added a ground to the brown/ blue wire and the intake runner and coolant sensor codes did not reset. We found that accelerator pedal position 2 output did intermittenly drop out and we also got an intermittent code... Trouble codes: P3193, P2127, P0190, P0118.
2010 Volkswagen CC Sport 2.0L windows VIN: WVWMN7AN2A
Thanks for the help. Will need to reschedule vehicle to come back in and just do the old school method of just dig in. Problem in giving customer close estimate without knowing where to start. Like recommended I will start at B pillar and see if there is power...
2010 Volkswagen CC Sport 2.0L rear windows VIN: WVWMN7AN2A
Thanks for the help. Will need to reschedule vehicle to come back in and just do the old school method of just dig in. Problem in giving customer close estimate without knowing where to start. Like recommended I will start at B pillar and see if there is power...
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