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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Rough idle, after warm-up variable idle

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Old Nov 25, 2002 | 10:49 PM
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FredJJ's Avatar
FredJJ
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Rough idle, after warm-up variable idle

Good forum --

87, E150, 5L, V8, with Fuel Injection.

Starts fine but very low, and very rough idle. Idle speed
has always seemed slow and I have mentioned it but every
time they say it looks good on the computer.

After it warms up, the lower idle pulses, low to high
and back -- requiring you to hold the brake down to not
lunge forward.

Any ideas? It's also blowing some black smoke that
starts to go away after it warms up.

Thanks --- Van has run great, and in great shape but
have had a lot of fuel problems the last year at about
$400/pop going to the dealer -- going to figure it out
or get rid of the van.

Fred
 
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Old Nov 26, 2002 | 01:00 AM
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termyt00
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From: Close to Mr. Anderson
Rough idle, after warm-up variable idle

 
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