Engine diagnostic
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From: Pelham
Engine diagnostic
Hi, I have a 97 ford explorer. Need to know whats all involved in a engine diagnostic test? I have had quotes ranging in price from 29.00 to 300.00. Any help would be greatly appreciated.
Thanks,
Hill2523
Thanks,
Hill2523
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AdvanceAutoParts is having a sale on their Equus 3100. Not as advanced as some of the other readers here, but should give you the codes you need. If you have a hard time deciphering them, you can always post them here, of look around online. Many sites post the code definitions.
Also - Midas and Goodyear typically do a "computer diagnostic" for $85-$95. Just say you want the codes read, and no more.
..andrew
Also - Midas and Goodyear typically do a "computer diagnostic" for $85-$95. Just say you want the codes read, and no more.
..andrew
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From: Pelham
Thanks for the replys. My problem is a shaky idle(rough) when sitting still. My RPM's still stay the same at idle when this happens. I have replaced the IAC just about 4 months ago. If anybody has any ideas please post them. Thanks, Hill2523
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From: Alvin, Texas.
Check for codes first. That's better than guessing, for sure.
Autozone and the like can do this for free.
Then come back with said code(s).
Autozone and the like can do this for free.
Then come back with said code(s).
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From: Phoenix
Really? How do you rest a PCM? All I know is you disconnect the battery. This clears all KAM - keep alive memory - all learned corection factors. These factors help compensate for worn out parts that cause the engine to run out of spec - A/F ratio an spark curve mainly.
The PCM is simply a dumb computer. It does what it is programmed to. There is no reset, OK now I'm happy now and sorry for the hickup problems button.
If you had a problem, clear KAM and the problem goes away, it will likely be relearned before 100 miles go by. Which I think is impossible anyway since correction factors worked to get your A/F ratio back to design, not to make a problem worse.
The PCM is simply a dumb computer. It does what it is programmed to. There is no reset, OK now I'm happy now and sorry for the hickup problems button.
If you had a problem, clear KAM and the problem goes away, it will likely be relearned before 100 miles go by. Which I think is impossible anyway since correction factors worked to get your A/F ratio back to design, not to make a problem worse.
