
1990 Ford F-250 Custom 5.8L High Idle Speed
Hi Ford techs: Have an intermittent situation where the idle speed will flare up on its own to almost 3,000rpm's and stay there. Then, drive for a bit, and it will idle normal. continue to idle, and idle will surge after 5-10 min. of idling, not to 3k, but [.....
FIX posted 2/25/2004
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Message Closed w/FIX
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VIN | 1FTHX26H8L |
Engine | 5.8 L / 8 cyl / GAS |
Trans | 5-speed Standard |
Delivery | FI |
Symptoms | High Idle Speed |
Occurs | Hot, Idle, After a Hot Soak, Intermittently |
Misc. | Lifted 4X4 |
Trouble Codes
21 | coolant temp signal problem |
24 | intake air temp out of range |
Message Closed w/FIX
Vehicle Data
1990 Ford F-250 Custom
VIN | 1FTHX26H8L |
Engine | 5.8 L / 8 cyl / GAS |
Trans | 5-speed Standard |
Delivery | FI |
Symptoms | High Idle Speed |
Occurs | Hot, Idle, After a Hot Soak, Intermittently |
Misc. | Lifted 4X4 |
Trouble Codes
21 | coolant temp signal problem |
24 | intake air temp out of range |