NEED HELP: how to stop engine from revving. - - Home of Canadian Ford Truck Enthusiasts

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post #1 of 6 (permalink) Old 05-03-2014, 03:01 AM Thread Starter
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Location: saskatoon, sk
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Thumbs down how to stop engine from revving.

Hi, I've a 1989 2.3l ranger with a manual transmission,distributerless ignition, and fuel injectors. When I come to a stop the engine revs up for about 20 seconds or so and then idles down to a more bearable level (but still too high). It'll also rev up between shifts. I've checked my Haynes manual and I can't find anything in there that relates to my problem. I listened closely to the engine and I couldn't hear any air leaks. If anyone has any suggestions, I'll surely try them out. Thanks
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post #2 of 6 (permalink) Old 05-03-2014, 03:15 AM
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Join Date: Nov 2012
Location: Scarborough Ontario
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if I were lookin at a front wheel drive mopar I'd say off hand either idle speed control motor or speed sensor

but your really just chaseing your tail without a way to read fault codes stored in your trucks computer
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post #3 of 6 (permalink) Old 05-03-2014, 08:02 AM
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Check the clutch switch.

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post #4 of 6 (permalink) Old 05-09-2014, 02:59 PM
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That could be normal. my 95 2.3 did the same thing. Apparantly its the computer's way of acting like a dashpot on a carbed engine. Its supposed to keep the truck from stalling.

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post #5 of 6 (permalink) Old 05-10-2014, 12:02 AM
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My 89 2.9 does it everyonce in a blue moon too. Must be kinda normal

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post #6 of 6 (permalink) Old 05-10-2014, 01:35 AM
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Vacuum leak.

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