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Feb 20, 2006 | 12:04 AM

JandFcams

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Check engine light

I drive a 98 F150 and my check engine light just came on. I have found no obvious problems, is there any kind of test i can do to find out what caused it to come on without taking it to a repair shop?

Feb 20, 2006 | 01:12 AM

BLK94F150

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From: None of your business

Go to Autozone and they'll scan the ECU for free. Get the codes and report back here. Get the actual codes and not what the guy says that they mean.

Mike

Feb 20, 2006 | 06:29 AM

projectSHO89

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From: St Louis

WRITE DOWN the codes.

Come back here and SEARCH using the code(s) as your keywords.

If you can''t find relevent information, then ask.

Steve

Feb 20, 2006 | 10:27 AM

JandFcams

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Is there any place that does the test other than Autozone? Closest autozone is 130miles away.

Feb 20, 2006 | 10:52 AM

BLK94F150

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From: None of your business

Call any auto parts store. Most likely they can scan the codes.

Mike

Feb 20, 2006 | 10:58 AM

KennethKvittum

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Do you refuel the truck with the engine running???????????

Feb 20, 2006 | 11:06 AM

JandFcams

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no- always shut my truck off. Got below freezing for a few days and came on- warmed up a little but it is still on.

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Feb 21, 2006 | 08:57 AM

Grsyhands

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Quote:

Originally Posted by ATC Crazy

I do that every now and then and haven't had any problems

Me too, and havn't noticed any issue other than the guage is a little off. What can this do?

Feb 21, 2006 | 06:40 PM

#10

KennethKvittum

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There is a tube that picks up changes in the gsa fumes at the fill tube, that are sent to a sensor on the firewall, part of the emission control system, this will set off the check engine light.

Feb 22, 2006 | 06:41 AM

#11

Grsyhands

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Kenneth,

Haven't see it (yet). Could you tell us what the code is? Thanks.

Feb 22, 2006 | 07:40 AM

#12

projectSHO89

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From: St Louis

Quote:

Originally Posted by KennethKvittum

There is a tube that picks up changes in the gsa fumes at the fill tube, that are sent to a sensor on the firewall, part of the emission control system, this will set off the check engine light.

There are dozens of things that can cause a CEL.

Guessing at the cause without any codes is about like pi$$ing into the wind.

Steve