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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 15, 2014
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
2005 Audi A4 2.0L Poor Idle Quality, Misfire VIN: WAUAF68E25
Hello all tech. I need your help pleaseeee. working on this POS. caming for missfire # 4 . comppression on # 4 only 25 psi. running at idle very bad but off idle it will smooth out. I did leak down was 92 % but do not knpw where it is. check air leak from inta...
2010 Audi A3 TDI 2.0L Hesitation, Misfire, MIL Lamp on VIN: WAUKJAFM8A
Need help for proper direction. No archive available ? Thanks. Trouble codes: P020B, P13D3, P020A, P13D0, P13D6, P13D9
2008 BMW 650i 4.8L sliding panels VIN: WBAEA53568
Hello bmw techs, I removed the sunroof glass and found one of the platic sliders broken. Parts not available so entire cassette will be replaced. this customer has an extended warranty, I dont have much experience with sunroofs but another guy here does. Just ...
1994 Chevrolet Caprice Classic 5.7L timing cover VIN: 1G1BL52P9R
This Caprice keeps leaking oil from the timing cover, we have replaced the seals twice now & installed a new distributor, a new water pump driveshaft, & have replaced the crank seal & put a speedy sleeve on the harmonic balancer. The car was first worked on at...
2007 Chevrolet Uplander 3.9L cooling fan VIN: 1GBDV13187
We have a 2007 uplander with an intermittent p0480. It came to us with an empty cooling system. We replaced the rad because the tank was split. It came back while I was away and the apprentice said head gasket. It overheated again after the head job. Cooling f...
2007 Chevrolet Silverado 2500 HD Classic LS 6.6L fuel VIN: 1GCHK23D97
I am working on a 2006 6.6 duramax and can't get it to run. Drove in a couple months ago but ran very poor like a misfire. then stopped running completly. Will start on starting fluid but then stalls when runs out of starting fluid. Replaced the Injecton pump ...
2007 Chevrolet Suburban 1500 Z71 5.3L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GNFK16377
Officially stuck on this one. Misfire at idle Cyl. #3 Compared all readings with non-misfiring cylinder and both are identical - 150 lbs compression - 10% cylinder leak down - running compression the same - keep in mind on this LC9 that cylinder #3 is not one ... Trouble codes: P0300 (Cylinder Misfire)
2008 Chevrolet HHR SS 2.0L Surge, Cuts out, Over Boost VIN: 3GNDA63X08
We have a 2008 HHR SS with a 2.0 Turbo. On decent accel the turbo puts out 25 psi of boost on the factory gauge, 275kpa on my scan tool. The wastegate solenoid PID is showing 95% when it act up. There is not a lot of info on this motor in Alldata. I suspe... Trouble codes: P0234 (Turbocharger Overboost)
2012 Chevrolet Sonic LS 1.8L Oil Pressure VIN: 1G1JA5SH4C
Thanks in advance to all IATN members! This car is part of a fleet of delivery vehicles. Cause of high mileage. Vehicle originally came in with a complaint of oil light on and MIL illuminated. Had a code P0011 (intake cam position system performance). First ch...
2007 Chrysler 300 Limited 3.5L extended crank VIN: 2C3KA53G47
I have rechecked the fuel pressure and it is in spec. I also removed the front covers to inspect the timing marks and they are all aligned. The problem with the vehicle is after an extended crank of about 5-6 seconds the car will start. The funny thing is if y...
1998 Dodge Grand Caravan ES 3.8L Low Pedal VIN: 1B4PG54LXW
Hi, Thanks for reading my post. This van came in with leaking brake lines by the gas tank. It has been leaking for several weeks and owner has been adding brake fluid. Probably the fluid has run completely out of the master cylinder a few times. After replacin...
2006 Dodge Sprinter 3500 2.7L Hesitation, Cuts out VIN: WDXPD94466
Hey guys, got a hand me down for you to ponder with me. This RV has been to us prior, one other independent Sprinter shop, and 2 dealers with no solution. It's back hear today for a LOF and I told them I would fiddle-fart with it. In addition to the LOF, I als...
2006 Dodge Sprinter 3500 2.7L shift points VIN: WDXPD94466
Hey guys, got a hand me down for you to ponder with me. This RV has been to us prior, one other independent Sprinter shop, and 2 dealers with no solution. It's back hear today for a LOF and I told them I would fiddle-fart with it. In addition to the LOF, I als...
2007 Dodge Ram 3500 ST 6.7L Service indicator VIN: 3D7MX38A57
Hey Dodge guys, I need some help. My customer has this 07 Dodge with the 6.7 cummins. He is a farmer and his truck i used exclusively off road (wink, wink) and another shop deleted the EGR and the DPF before I took on this truck. It has a programmer on it but ...
2011 Dodge Grand Caravan Express 3.6L Mechanical VIN: 2D4RN4DG8B
Van came in with a complaint of a clunk when shifting in to drive or reverse. All motor mounts and cradle bolts are tight. Noise seems to be coming from inside the transmission. Any thoughts?
1996 Ford Windstar GL 3.8L P/S Pump VIN: 2FMDA5144T
Van came in with noisy power steering pump. Replace with rem pump and still noisy when turn. Bleed air by turning left to right over 40 times and the noise still there. Could that be defected pump?
2000 Ford Windstar SE 3.8L Unknown VIN: 2FMZA5243Y
hi guys i need help with a 2000 ford windstar,the problem is we replaced the cluster with a used cluster.tried parameter program reset and ignition key code erased,still the car will not start.if we install the old cluster the car starts right up. question is ...
2002 Ford Ranger Edge 3.0L No Start VIN: 1FTYR14U32
This vehicle has issues starting when cold(usually sitting overnight) Fuel pressure is OK. If car sits in sun and warm weather it will start. Any ideas?
2005 Ford Escape Limited 3.0L Alternator VIN: 1FMCU94135
When looking up the labor for replacing the alternator our manual states awd escape as opposed to a fwd escape requires removing the transfer case which then pays almost 8 hrs for the job.does that really need to happen or does it sneak out the wheel well with...
2006 Ford Mustang 4.0L No Start VIN: 1ZVFT80N56
Loss of power until it died while driving. No codes, i have fuel, fire, noide, compression (150psi), exhaust has been lowered, fuel pressure(46psi) and quality both check out. Origional plugs were fuel fouled. Nothing jumps out in the data that seems out of ra...
2009 Ford Escape XLT 2.5L Trans fluid leak VIN: 1FMCU93779
About 2 months ago trans fluid started leaking again. We replaced the LF inner axel joint, axel seal, axel bushing. It came in a kit,also a TSB. Customer returned with a leak from same location. I suspected the transmission vent dumping fluid as a possible cau...
2005 GMC Envoy Denali 5.3L door lock VIN: 1GKET63MX5
i have a 2005 gmc envoy rear hatch wont comunicate with scan tool cant get door lock working it just sets and makes a clicking noise all the time
2009 Honda Pilot EX-L 3.5L rocker arms VIN: 5FNYF48579
vehicle has ticking noise coming from front cylinder head. as per tsb found for this problem, I tightened rocker arm bridge and adjusted valves to spec. with the valve cover off I noticed # 4 cylinder rocker arms dark in color compared to the rest. put everyth...
2010 Honda Odyssey EX-L 3.5L radio VIN: 5FNRL3H69A
radio after doing front brakes and pwr. steering flush and change out steering reservoir the radio jumps channels when going over bumps and or closing the doors ?
2003 Infiniti G35 3.5L Stereo/Ac
The stereo / Ac doesn't work, heater stay and there is no way to control it. Stereo also not able to control it, because there is a cassette in there you can hear the stereo working when you turn the stereo on. I replaced the circuit board but nothing . So don...
2008 Infiniti G37 Sport 3.7L Av VIN: JNKCV64E38
Vehicle has intermittent power loss to the AV system, the BCM and IPDM. This power loss can last anywhere between 5 to 10 seconds. Originally, the complaint was for the shifter being inoperable, upon the first test drive the vehicle started showing more intere...
2001 Jeep Grand Cherokee Laredo 4.0L cooling fan VIN: 1J4GW48S01
Vehicle came in with cooling fan running continuously. Cooling fan relay was very hot. Replaced relay and connector. Now fan does not operate at all. Will run if power wires in and out of relay are jumped.
2004 Jeep Grand Cherokee Limited 4.7L fuel pump VIN: 1J4GW58NX4
At wits end, this Jeep came in originally a couple years ago on a tow truck with no fuel pressure. Tested and found pump bad, replaced with aftermarket. Lasted 1 year and became very noisy so warrantied it with same manufacturer. This pump lasted 6 months, sai...
2012 Jeep Liberty Sport 3.7L Misfire VIN: 1C4PJLAK0C
This Jeep liberty is difficult to start and when it does start, it runs horribly. After about a minute the catalytic converter on the drivers side glows red hot. All cylinders have 160 psi compression. There is spark to all cylinders. All the injectors are fir... Trouble codes: P0300 (Random misfire)
2008 Kia Optima LX 2.4L crank no start VIN: KNAGE12398
2008 Kia Optima 2.4L has a crank no start condition. Ignition coils have no spark. I can watch crank RPM raise to about 300 on scan tool while cranking engine. Any help would be greatly appreciated.
1991 Mercedes-Benz 300SL 3.0L speedometer VIN: WDBFA61E1M
We are installing a 383 small block chevy for a customer. NOT MY IDEA! I need to know the pulse per mile or km for the speedometer. We want to install a autometer universal GPS speedometer interface, part # 5289. Autometer tech says it needs a 12 volt square w...
2001 Mercedes-Benz E320 3.2L Alarm VIN: WDBJF65J61
We have an E320 here, and the alarm goes off randomly, and frequently. When the customer dropped it off, the alarm went off 5 times within 30min. When you lock the doors, the alarm will go off almost every time within 40-60sec. The following codes keep coming ...
2002 Mercedes-Benz E320 3.2L esp VIN: WDB2110562
we had a problem with b24/15 sensor acceleration sensor and changed to a second hand unit as soon as the new sensor was fitted a new code came on and would not clear.(same code as above 4cf1 ) acceleration sensor)put old sensor back in and no code. So we put a...
2008 Mercedes-Benz CL63 AMG 6.3L Mixture VIN: WDDEJ77X18
Car came in with engine light on found codes 171 & 2187 running lean at bank 2.smoke test it no leak found at all except the vacuum hose from the brake booster to the intake is leaking from the coupling at the intake, i called mercedes & they said that coulpin...
2009 Mini Cooper Clubman 1.6L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: WMWML33549
At first it came in for the check engine and stall when starting cold. You would have to hold up the rpms to keep it running until it warmed up for a few minute. Checked out coolant temp sensor readings and it was at 210f when cold, when unplugged it went down... Trouble codes: 2ACB, 2A8B, 2F8E, 2A74
2003 Mitsubishi Diamante LS 3.5L Abs VIN: 6MMAP67P53
thanks in advance! This is first vehicle that customer has sent to me, potentially a large account and I have heard about integrity test from this company. They claim the battery had been changed and battery light and anti lock warning lights where on afterwar...
2007 Nissan Titan XE 5.6L engine VIN: 1N6AA06A87
Vehicle came in for overheating while driving, we couldn't find anything wrong, except the gauge would read 240 degrees and the block temp was 215. So the customer just had us replace, thermostat, sensor and fan clutch and took the vehicle. He returned 2 weeks...
2004 Pontiac GTO 5.7L Cuts out, Misfire, Reduced power VIN: 6G2VX12G94
This car came in with complaint of no engine power. We checked for codes and none were present but if you turn off the traction control system the car runs great with no problems. Turning on the traction control system it goes back into reduced power.We scanne...
2007 Saturn Aura XR 3.6L speedometer VIN: 1G8ZV577X7
replaced the transmission. now speedometer in accurate. scantool data shows proper speed but ipc only shows about 30% of speed i.e. 50mph displays 15mph. oss match iss in 4th gear. all grounds checked. alldata says replace ipc but im not buying it becouse ipc ...
1996 Toyota Tacoma DLX 2.7L No Start
have voltage at both terminals at igniter. have fire at injectors. check engine light on. swaped ecm relay. the coil. cam sensor. crank sensor all read with in spec. it will start in about the tenth try. funny thing when I check coil fire at dist it will spark... Trouble codes: P0336
2001 Toyota Prius 1.5L Hybrid VIN: JT2BK12U11
Vehicle came in last year with codes p3000 battery control system, c1259 hv system malfunction and p3030- found bad cell on blocks 18 and 19. Customer declined hybrid battery replacement and came back 9000 miles latter. We replaced battery tried to go through ...
2001 Toyota Tacoma DLX 3.4L Rumbling noise VIN: 5TEWN72N41
This truck has us baffled! It has a rumbling noise while driving around 40-45 mph. The noise fades in & out. Makes no difference whether braking, coasting, or turning even does it with trans in neutral. Very difficult to tell if noise is in front or rear. Nois...
2002 Toyota MR2 Spyder 1.8L MIL Lamp on VIN: JTDFR32082
This car is driving us nuts.The P0174 lean bank 2 code took 2 and a half weeks to come on after last visit when we replaced the o2 sensors. I've been reading a lot about mass airflow sensors but its usually with p0171 and p0174.Im thinking possible injector,bu... Trouble codes: P0174 (Fuel system lean bank 2)
2003 Toyota Tundra SR5 4.7L Unknown VIN: 5TBBT44133
Truck came in because customer stated he thought the parking brake was hung up, noticed all 4 tires were unable to be turned, opened the right front bleeder and all 4 tires freed up, applied brakes to get all 4 tires to lock up, opened up brake lines at master...
2001 Volkswagen Beetle GL 2.0L Surge, Stall VIN: 3VWBB21C51
This is the original customers concern" EPC light keeps coming on. The car will only go 5 mph or 90 mph, with crazy high engine reving. Throttle body changed twice, and the gas pedal also changed twice. The light is off for several months and then the comes on...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1968 American Motors Rebel SST 4.8L Mechanical VIN: A8A177M264
Thanks for the info from everyone the sprag does lock clockwise and this thing is fixed !
2008 Buick LaCrosse CXL 3.8L Bcm
As always thanks to everybody who took time to reply. Special thanks to Brian for turning me on to compnine.com. Reasonably priced and has the information your looking for. Also thanks to Craig for offering to look it up for me.
2006 Chevrolet Colorado LT 3.5L Poor Idle Quality, Hesitation, Cuts out, Stall, Lack power VIN: 1GCCS19646
2002 Dodge Ram 2500 5.9L not shifting VIN: 3B7KF23602
Thanks everyone, and thanks to IATN. You guys were right, after I changed the harness, block & sensors everything went back to normal. Thanks Again Glenn
1994 Ford E-150 Econoline 5.8L steering box. VIN: 1FDEE14H4R
Thanks to all who replied. Steering gear fixed it,as I assumed, just wanted to make sure I wasnt overlooking something.Thanks again!
2008 Ford F-250 Super Duty XLT 6.4L engine VIN: 1FTSW20R28
I apologize for this posting, however after chasing this noise, we removed the driver side valve cover and found some wear on the rocker arms, we replace the rocker arms and changed the oil and filter. The noise seemed to get worse after the repair, sent to fo...
2011 GMC Acadia Denali 3.6L HVAC System - Automatic VIN: 1GKKVTED8B
The original concern was that the HVAC system was stuck on the defrost mode with the AC on. Therefore in the summer time the windshield would begin to fog up and would not blow cold air directly on the driver/passenger. Diagnostics were performed as per the Mi...
2001 Honda Odyssey EX 3.5L A/C system VIN: 2HKRL18691
Thanks for all the replies Guys! I ended up replacing the condenser even though i couldn't tell if it was restricted. I also removed a few ounces of oil. System pressures are still not where i like them but it's blowing cold enough for my customer. Low side @ ...
1994 Jaguar XJS 4.0L Tps VIN: SAJNX2748R
Following Bob's advice, I got a 90 to 92 TPS and swapped the plugs (there are 6 wires in each switch with identical color coding). I couldn't duplicate the problem in the time I had to test it; the customer said the failure usually occurred after a couple of d...
1997 Land Rover Discovery SD 4.0L Excessive Emissions, Poor Fuel Economy VIN: SALJY124XV
I give up. Kind of threw caution to the wind and replaced all 4 O2 sensors. Now have 1 bank full rich and the other full lean. I've spent $100's in parts out of my own pocket and probably 25 hours checking, rechecking my work, rechecking their work, and scratc... Trouble codes: P1187 (HO2S one heater open circuit).
2002 Land Rover Range Rover HSE 4.6L No Start VIN: SALPM16492
So this more than likely is Fixed. I can't be 100% sure only because I haven't heard back from this customer whether that is good or bad. It looks like the security coding reset fixed it at this time. If the vehicle returns I guess I will have to update thi...
2006 Lincoln Navigator Ultimate 5.4L Poor Idle Quality, Cuts out, Stall, Misfire VIN: 5LMFU28506
Several people told me to check oil pressure at idle when hot. It should have at least 25 psi or 30 psi is what I was told. This vehicle had 40 psi at idle and 75 psi at 2000 rpm. After everything was said and done on this one, it turned out to be 5 defectiv... Trouble codes: P0171.
2008 Mercedes-Benz E350 4Matic 3.5L Drive-axles VIN: WDBUF87X88
Thanks to Cedric and Wayne for the prompt replies-the correct torque is 70nm and an additional [...]
2003 Toyota RAV4 2.0L Overdrive VIN: ACA2000203
Received six replies, thank you for taking the time to reply. There was a TSB on this model that recalled the ECM and replaced with an updated unit. These ECM's break the transmission! I have referred this vehicle to Toyota Mozambique to deal with Toyota Japan...
2004 Volkswagen Passat GLS 1.8L oil leak/vacuum in crankcase VIN: WVWPD63B04
thank you to everyone for your input. what fixed the problem was the crankcase ventilation valve. this is a t shape valve under the intake what I confused with t connector the way to identify it is, it has a big hose on one end and two small hoses on the other...
2004 Volkswagen Jetta GLS 1.8L No Reverse Gear VIN: 3VWSE69M64
Thanks to all that replied. We suggested valve body replacement. The customer decided to pull the chute for lack of funds. I would have liked to see this car fixed.
1996 Volvo 960 2.9L ac VIN: YV1KS9605T
Thanks for the help you guys,like i said on the update finally was able to retrieve a code for the servo motor and installed a used one and all was ok.
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