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Prev Professional Automotive Repair Technical Discussions for February 26, 2011
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Open Help Requests for All Makes and Models
Help Request Answers
1985 Alfa Romeo Spider Veloce 2.0L Hesitation VIN: ZARBA5419F
This car runs great except for an intermittent hesitation when accelerating.Hesitation is great,lasting for about a second before catching and happens cold or warmed up.Seems worse in the lower gears.I suspect a bad airflow meter.Flap opens ok but when ohming ...
2001 Cadillac DeVille 4.6L Tcc VIN: 1G6KD149S1
I checked the TCC circuit and found solenoid faulty. should converter be replaced also.
2002 Chevrolet S10 2.2L MIL Lamp on VIN: 1GCCS14562
Truck came in a couple of weeks ago with engine light on . customer replaced downsteam o2 senser per someone else. we cleared light for him .. truck came back with light on p0410 code secondary injection code. replaced air pump and associated hose per tsb. cam... Trouble codes: P0410 (Secondary injection system fault)
2004 Chevrolet Aveo 1.6L No Start VIN: KL1TD52614
HELPPPPPPPPPPP. I checked power at engine. Power good. No injector pulse. Now I get code P2610. Was getting MAP code. Disconnect battery car ran fine after reconnected. Changed oil for last step of repair. Now back to no start. So I dont know if problem was th... Trouble codes: P2610
2000 Ford Explorer Limited 4.0L Abs VIN: 1FMZU63E1Y
2000 Ford Explorer ABS motor starts running when coming to a stop. Only does it Below 5mph fairly consistent. when the motor turns on no data is shown on scanner until the motor stops running. we have checked all three speed sensors all appear to be good. pres...
2002 Ford Explorer XLT 4.0L Speedometer VIN: 1FMDU73E42
Customer left us his 2002 Explorer stating the speedometer is reading approx. double the speed of the vehicle. Also, The transmission is shifting incorrectly and erraticly. We scanned the PCM and didnt find any codes except P0401 for low EGR flow. Looking at t...
2004 Ford Taurus SE 3.0L Poor Idle Quality, MIL Lamp on VIN: 1FAFP55U84
need some ford help .new customer states ford dealer said car needs all cats and 4 o/2 s. mil light is on.he says at a stop motor revs up runs normal with no loos of power,my scanner cannot get any data from link for unknown reason.having never see...
2005 Ford Freestar SEL 4.2L Hesitation, Misfire, MIL Lamp on VIN: 2FMZA52275
Had one yesterday same car, same situation, found pcm wet. Dried the connecter and pins and misfire was gone. This one(another freestar) today i found a wet pcm, dried the connector and pins and made it much better, but it still is misfiring. Not coding anymor... Trouble codes: P0303
1999 GMC K2500 Sierra SLE 7.4L engine
Have a ticking, almost rubbing type noise coming from engine once warmed up. Is quiet as a mouse when cold. Have run without belt. No change. Have removed all rockers and pushrods for inspection. No defects found. Have removed convertor shield to inspect for f...
2002 Honda Civic LX 1.7L 5th Gear VIN: 1HGES15512
I have a vehicle that the customer states will pop out of 5th gear while driving at a steady speed on an uphill grade.I inspected undercarriage and found 2 subframe bolts started but not tightened.I road tested and could not confirm customers complaint.I did n...
2006 Jeep Commander (Truck) 4.7L Transmission VIN: 1J8HG48N36
We have a 2006 Jeep Commander that keeps losing transmission fluid. We have looked at the vehicle several times and cannot find any external leaks. There is no fluid in the antifreeze. I know that one of the electrical connectors tends to leak, but everything ...
1992 Lincoln Mark VII LSC 5.0L Suspension VIN: 1LNCM93E4N
I have this lincoln that when you drive it the front air suspension goes down---loses air-fenders rubb the wheels-but when you stop driving it pumps back up-and it will hold pressure fine until you start driving again-if you shut it down-it will hold pressure ...
2001 Mercedes-Benz S500 5.0L shifter VIN: WDBNG75J61
This car is fixed, this is for the archieves, comment etc if you want. This car is stuck in park, will not come out. no codes, you can hear the brake pedal shift interlock working. It was just at mercedes dealer for Ignition switch (theft relavent part, they w...
2004 Nissan Titan SE 5.6L Cuts out, MIL Lamp on VIN: 1N6AA07B84
I was asked by owner of shop to look at this Titan. Other techs have been working on this for 9 months. Story: Was a trade in, lot porters used for trash hauling, overheated engine and warped heads. Heads were pulled and sent to machine shop, no one can tell m... Trouble codes: P0335
1995 Oldsmobile Aurora 4.0L Unknown VIN: 1G3GR62C4S
hello everyone hoping for some help here. this vehicle came in with the left front wheel and right rear wheel locked up. replaced both hoses and released the wheels. now we bled the brake system has good pedal vehicle off. test drove it and pedal will go to fl...
1973 Pontiac Firebird Formula 6.6L Poor Fuel Economy, pings VIN: 2U87N3N129
pinging on acell the timing is way retarted to stop ping and and it has r18 champion plugs with electronic ignition and has high speed blow by
2002 Saturn SL1 1.9L intermittent hard shift VIN: 1G8ZH52802
I'm guessing this one will have to go to the tranny shop but thought i would ask if there might be any common external items such as input or output speed sensors or maybe a shift solenoid that i might try to help customer. Symptoms are hard engagement from p...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1999 Chevrolet Venture 3.4L heater VIN: 12345ABCDE
Hello all I ended up fulshing heater core out, it had air in it. I tried using my cooling system vacumm tool but it did not remove the air. Thanks so much for all your help.
2000 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC5242Y
OK Thanks for the many replies,as many suggested I checked the fuel pressure and although the pump was running it had no pressure. And with my cheapo generic scan tool it read no RPM when cranking, when I hooked up my good Enhanced manufacturer specific scan t...
1995 Chrysler Cirrus LX 2.5L Stall VIN: 1C3EJ56H9S
Thank you all for your help. The theft systen was shutting it down due to a problem with the instrument cluster. Each of you helped get me on the right track.
2006 Jaguar S-Type 4.2L MIL Lamp on VIN: SAJWAO1B66
I drove this car for a week and was never able to duplicate the original problems.General consensus is problems occurred due to low battery caused by not being driven enough.I agree.Chris Donohue suggested installing a battery maintainer,sold by NAPA,but owner... Trouble codes: P2610 (87- ECM internal engine off timer performance), P0160, P0180.
1997 Lincoln Town Car 4.6L shifting VIN: 1LNLM82W1V
Well I learned a lot about these transmissions. If there are no codes and data all looks perfect then you have a valve body mechanical problem. After replacing all solenoids and harness connectors to no avail, we replaced the valve body and it shifts like a ba...
2002 Mazda MPV EX 3.0L readiness monitors VIN: JM3LW28J22
Unfortunantly this car is not fixed. After consulting with many technicians, the general thought is a bad pcm. The customer decided to trade it in.
2001 Mercedes-Benz C320 3.2L OBD monitors VIN: WDBRF64J51
Edgar and Al! I want to thank you both. You two were right on thins one. The customer had it at another shop a year ago and they unplug the seat control modules. When doing that they also removed some fuse from the rear fuse panel, I don't know why. We install...
2006 Mercedes-Benz ML350 3.5L Blower motor VIN: 4JGBB86E66
Thank you All for your help. Appologies, It took longer than usual to close this post due to part unavailability You guys were right. The blower motor fixed the problem. I tried to buy it new but couldn't find it anywhere so I purchased a used one and i...
1995 Nissan Maxima SE 3.0L Misfire VIN: JN1CA21DXS
ok guys thanks alot for taking the time to reply, now i know how to figue the estimate, I just wasn't sure because of alldata saying to remove the plenum and the rail etc. Thanks again BRENT Trouble codes: P0304 (Misfire cylinder 4).
2001 Nissan Xterra SE 3.3L misfire VIN: 5N1ED28Y41
thank you guys... i'm fixed this car. problem is bad ignition wire...^^
2007 Nissan 350Z 3.5L Hesitation VIN: JN1BZ34D57
since customer went out of town for a month I will close this, they didn't bother to tell me this or I would not have posted.Most of the replies centered on dirty throttle bodies, and MAF sensors getting slightly out of range. When I get it back I will check i...
2005 Toyota Camry 2.4L Unknown VIN: 4T1BE32K75
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