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Prev Professional Automotive Repair Technical Discussions for December 8, 2014
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models
Help Request Answers
2000 Audi S4 2.7L head gaskets VIN: WAUDD68D7Y
Hello everyone, this car came in with water pump very worn, rattling & leaking. It had also overheated. After water pump/timing belt job while cycling the cooling system we discovered it likely had blown a head gasket & tested positive for Hc's in the coolant....
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2000 Audi A6 Quattro 2.7L Misfire, MIL Lamp on VIN: WAUED24B8Y
Help Audi Techs! This A-6 2.7t came to us from another shop- they tested and replaced both ign modules- car would not start and it was towed here. We did our initial tests and found modules bad. we installed two good quality ign modules, fired up car and they ...
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2006 BMW 530i 3.0L Overheat message on dash VIN: WBANE73556
After driving for 15-20 minutes during first trip of the day, dashboard message center reads out "Engine temp too hot drive moderately". If I keep driving, it will go to "Engine overheat". After stopping for 5 to 10 minutes, I can restart and it will be fine f...
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2003 Chrysler Town & Country LX 3.3L No Start VIN: 2C4GP44373
Customer has had van to dealer numerous times. Claims that some times when trying to start van he will turn key to start and nothing, no lights on dash, no clicking, pinging, bells nothing. Like trying to start a vehicle with no battery installed. Dealer repla...
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1996 Ford Mustang GT 4.6L Mechanical VIN: 1FALP42X1T
I just finished installing a new 4.6 engine on this 1996 Ford Mustang. Engine runs perfect but I am getting a bad vibration from the clutch area that vibrates the entire vehicle. I can look through the inspection hole with the engine running and see the fork, ...
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2008 Ford F-150 Lariat 5.4L Timing chain VIN: 1FTPW14V98
We are doing our first timing chain kit on a 5.4 engine. One of the plastic guides broke and jumped time, and we don't have the tool to pull the cam followers yet. Can we set the crank key at 12:00 and do it with them still in there? All data shows pulling pha...
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1996 Honda Accord LX 2.2L Fuel Tank VIN: 1HGCD5633T
Hello and thanks in advance for help. We installed a fuel tank and lines in this Honda. Now it leaks out fuel canister when you drive vehicle. Does not seem to leak when just sitting and running. It is building pressure for some reason. The lines are not cross...
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2002 Honda Civic EX 1.7L MIL Lamp on
Still after new EGR valve with new position sensor and EGR passages cleaned still getting code, reads p0401 recirculation below threshold, possible leak detected. ideas? have checked and tested for leaks, found nothing, passages clean, new parts,,,i am at a lo... Trouble codes: P0401
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2003 Infiniti FX35 3.5L No Start, Poor Idle Quality, Stall VIN: JNRAS08W93
Greetings All. Customer drove to store-all ok. Came out - no start. The vehicle will fire up and run smoothly for about 3 seconds before stalling. Sometimes it will continue to idle but very poorly. So here is the funny thing- if while it is idling very poor...
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2007 Jeep Wrangler Unlimited Rubicon 3.8L trans range sensor VIN: 1J4GA69177
we replaced the engine in this vehicle and the trans is in limp in 3rd gear only, the shift indicator in the cluster is not working will not show what gear the vehicle is in. scanned pcm no codes in any system. shift data says neutral all the time. replaced ra...
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2008 Mini Cooper 1.6L Egs VIN: WMWRF33578
Hello All! We have a Mini cooper here that came in with no upshifting from the low ratio and no comm with the trans ECU (EGS in mini speak). We have good power and ground to the ecu. We scope tested the can lines, we have good signals high and low and matchin...
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1996 Oldsmobile 98 Regency Elite 3.8L fuel tank collaspe VIN: 1G3CX52K9T
Replace fuel tank for corrosion. New Tank has collapsed. Did not replace filler cap. Vent tube is clear and installed correctly. Canister vent line is clear and there is no gas in the canister itself. Concerned that installing a 2nd new tank will have the simi...
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1999 Pontiac Grand Am SE 2.4L Poor Idle Quality, Stall, Poor Fuel Economy VIN: 1G2NE52T6X
Hello fellow members this has gotten the best of me any help would be greatly apreciated. I have replaced the whole coil and module with two another good known ones and even replaced the coil cover and boots with new ones. 1999 Grand Am with a 2.4 L. runns v... Trouble codes: P0171 (Lean mixture)
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2002 Subaru Impreza WRX 2.0L Misfire VIN: JF1GD29602
These 2 codes come on at various driving conditions. You never feel the miss fires. Car pulls nice under hard acceleration. I put Sea Foam in but have yet to try. Checked for intake manifold leak but none present. Any ideas Trouble codes: P0302, P0304
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Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1998 Audi Cabriolet 2.8L Master cyl VIN: WAUAA88G3W
This car is fixed. I found an oily substance in the cap for the brake reservoir, it was the same color as the brake fluid but of a thicker viscosity. I,m assuming it is power steering fluid. Customer finally told us he has been going to the local Firestone for...
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2005 BMW 325i 2.5L Poor Idle Quality, Cuts out, Stall, MIL Lamp on, SES Flashes Constant VIN: WBAET37495
Thanks for everybody's help. Customer is taking car back to dealer. Trouble codes: 2869 (DME self test RAM check faulty P16A3), 28B2, 2830 (DME self test checksum P16A0), 27A1, 2796 (THrottle adaptation values incorrect P1632).
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2005 BMW X5 4.4i 4.4L vanos VIN: 5UXFB53515
Well guys, thank you very much for all your help and suggestions, we did have some fun working on this vehicle and it was a nice learning experience, after we start looking on the waveforms of the cam and crank sensors it all make sense, we notice that the cam...
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2007 BMW 335xi 3.0L RDC System VIN: WBAVD535X7
While the suggestions of a wet module were pretty common, this car already had the module located behind the RH trunk side panel, rather than in the spare tire area. Long story short, there was wiring damage hidden about 18" back from the transmitter in the LF...
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2001 Buick Park Avenue 3.8L MIL Lamp on VIN: 1G4CW54K11
The u1064 code was in the engine. I tried taking the RF seat out to get to airbag module. There are 2 bolts in the back and none up at the front of the seat???. Don't know how to get this seat completely out. The seat will tilt forward enough to put a 2x4 unde... Trouble codes: U1064.
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1998 Cadillac DeVille d'Elegance 4.6L inop
thanks techs turns out just like the replies i received the cluster was not sending the 12 volts to the pcm that the pcm pulls the 12 volts to ground creating a square wave out of the 12 volts i replaced the cluster and the speedometer works good
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2005 Cadillac STS 4.6L Oil Leak VIN: 1G6DC67A25
Wow what another awesome example of why IATN is the best. What great and helpful amount of replies we received on this. The best route was to remove engine and do a total reseal. The customer understood and would have done it if the were going to keep it. It w...
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2011 Chevrolet Cruze LT 1.4L Camshaft Alignment VIN: 1G1PG5S90B
We just indexed all the moving parts, secured the rear of the cams with a steel plate, rigged a dowel to hold the tensioner in place and performed the job. So far there has been no issues, car is still on the road.
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2006 Chrysler 300 C 5.7L Hesitation, Stall, Misfire VIN: 2C3KA63H16
Sorry, this beast is still not fixed. I replaced the sparkplugs, still stalling. I sent the car back to the dealer to warranty the PCM, still stalling. I replaced (2) coils & switched them into every possible combination, still stalling. After talking to anoth... Trouble codes: P0700, U0100 (TCM Loss communication with PCM).
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2005 Dodge Ram 1500 ST 5.7L cylinder 1 misfire VIN: 1D7HA18D75
Alright, feeling pretty dumb here... I ASSUMED spark plug wires were on correct. Turns out two of the waste plug wires were swapped. Thanks again for all the help guys.
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2007 Dodge Charger SXT 3.5L No Start VIN: 2B3LA43G77
Thanks so much to all that replied! Turns out timing belt had jumped a few teeth, I didn't expect that to cancel spark and injector pulse, and I'm a little disappointed that it wouldn't even throw a code for cam/crank correlation. Fortunately, no valves got...
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1995 Ford Thunderbird LX 4.6L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1FALP62WXS
Well this will be the last unserviced vehicle I ever accept into our shop again. We finaaly zeroed in on the 'multiple' problems that were compounding the situation and now the vehicle runs like a new vehicle. The combination of problems were: CAM and Crank Se... Trouble codes: 1407 (EGR no vacume/flow).
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1996 Ford Mustang GT 4.6L Charging VIN: 1FALP42X1T
Ran a new key on power source to both wires going in to the alternator.
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2007 Ford Freestyle SEL 3.0L Transmission VIN: 1FMDK02177
38K used tranny is back in and vehicle is running good. Thanks to all of you who took the time to reply. Seems parts for this thing are a bit on the high side and customer wanted to get it done dependably for less. So the used trans was his best option.
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2008 Ford Expedition King Ranch 5.4L valve train VIN: 1FMFK18568
Thank you for telling me to remove the belt. It turned out to be the grooved idler pulley near the power steering pump. For future reference, a noise exactly like a air filled power steering pump, it may be a pulley. Again, Thanks
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2003 GMC Sierra 2500 HD SLE 8.1L radio VIN: 1GTHK29G33
I want to first thank you for the responses I did receive. I did Re-Run those tests as suggested, to make sure I didn't skip any...Same results. It was definitely was a Bose amp, as there was some confusion in the SI. The most confusing part of testing reveal...
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2008 Honda Accord LX 2.4L Misfire, MIL Lamp on VIN: JHMCP26488
Most techs reported that a stretched timing chain can cause this symptom. It seems this particular engine is known for problems especially if not maintained religiously. This problem has been very intermittent. It has not acted up again for 2 weeks so custom... Trouble codes: P0339, P0300, P0302, P0303.
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2007 Hummer H3 3.7L Odometer VIN: 5GTDN13E57
Well, I created a problem when there was none. I assumed that the "KM" on the self test next to the odometer meant it was in kilometers not miles. Im sorry for wasting everyone's time. It was reading in miles the whole time.
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2007 Jeep Compass 2.4L Cuts out, Stall VIN: 1J8FF47W77
Well, thanks to all for the great suggestions. This one is closer to being repaired. As mentioned by several replies, check the purge valve and canister for raw fuel. After refueling the vehicle for the customer, I was able to duplicate stall concern. Went rig...
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2008 Jeep Patriot Limited 2.4L Poor Idle Quality, Stall VIN: 1J8FF48W98
I was unable to duplicate the customer complaint. I agree with all the replies My first thought was a loaded charcoal cannister purging excess fuel into intake manifold. I told my customer that untill it is having an episode I would be just guessing at which p...
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2007 Mini Cooper S 1.6L driver VIN: WMWMF73597
sorry for the late close of this. We did determine that the heat exchanger was blocked and required replacement...repair was declined by the customer though. Thank you to all that responded.
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1994 Pontiac Bonneville SE 3.8L Oil in intake VIN: 1G2HX52LXR
Well I think this headache is finally over. It ended up being the PCV valve. Replaced it with an ACDELCO valve and the problems went away. The intake was a DORMAN intake only because I could not find a real GM one for this old of a car. I really appreciate all...
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2002 Pontiac Bonneville SLE 3.8L No Start VIN: 1G2HY54K22
Checked all coils and had one with high resistence, replaced all coils and module, cleaned grounds, starts and runs fine now, test drove OK. Thanks for all the help and support, David
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2003 Saab 9-3 Arc 2.0L Hesitation, Surge, Cuts out VIN: YS3FD49Y73
Turns out that updating programming was the issue. Sent to a dealer (far away) and they reprogrammed everything that was able to be updated. They noted a few small hoses clamped, connectors cleaned, etc... But reflash solved everything. Trouble codes: P0300 (Very intermitent code. Random cyl).
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