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  #1  
Old 09-29-2010, 12:10 PM
007streetglide 007streetglide is offline
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Exclamation engin revs at start

start the truck engine revs to 2,500 / 3,000 then comes down to idle after about 30 seconds.

1 checked for vaccume leaks- none to be found
2 checked and cleaned maf and Tb.
3 checked and cleaned iac working properly tried another with same result.

Going crazy any help would be great.

2002 sohc Ranger Edge 4x4

Last edited by 007streetglide; 09-29-2010 at 12:18 PM. Reason: forgot year and engine
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  #2  
Old 09-29-2010, 12:16 PM
007streetglide 007streetglide is offline
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Default Re: engin revs at start

2002 sohc 4x4 Ranger
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  #3  
Old 10-03-2010, 06:40 PM
crowdpleazer crowdpleazer is offline
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Default Re: engin revs at start

kinda sounds like a computer problem? it could be a sensor also. have a garage do a scan on the computer and see if they can pull anything up on it. thats all i can think of
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1998 ranger extended cab, 2wd, 4.0 ohv, 5 speed, sony xploid 52 4 way watt radio, 2 pair of pioneer 240 watt speakers, Cobra 29 LX LCD CB radio pushing 100 watts, k&n air filter, 15 inch exploder wheels, dual exhaust with 4 inch stainless tips, 2 12 inch subs with a 1000 watt amp just for the hell of it!

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  #4  
Old 10-06-2010, 04:49 PM
larry11 larry11 is offline
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Default Re: engin revs at start

sounds like throttle position scensor maby
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  #5  
Old 10-20-2010, 03:05 PM
Solo V8 4G Solo V8 4G is offline
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Default Re: engin revs at start

check out this thread..... 2004 Ranger (4.0) High Idle when first starting??? - i posted a reply that may help you.
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98 Ranger, Bagged 2600's in the front, 2500's in the rear. 3 Gal tank. DJM Upper and Lower control arms. 2 Thomas Compressors (garbage). 4 linked rear with C-notch. All (except cab) fiberglass. Custom Tribal Paint (soon to be Sunburst/burnt Orange).
Coming soon - 405HP 4.6L (SOHC), 4R70W
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  #6  
Old 10-20-2010, 03:14 PM
dangerrangerdbd dangerrangerdbd is offline
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Default Re: engin revs at start

throttle position may be up a little..... also cold mornings do that.
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93 FORD RANGER 4.0L SOHC V6 AUTO
255/70 15x10 tires on hurricane rims
4-6x9 RoadMaster highs 4- Sony Xplod 6x9 highs
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2 1/4" True Dual Straights/ 4 1/2 '' tips
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  #7  
Old 10-20-2010, 03:18 PM
dangerrangerdbd dangerrangerdbd is offline
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Default Re: engin revs at start

not to scare you but that could be a sign of building head pressure..... if thats the case get your truck looked at asap. mine did the same thing,,,,, is it running hot?
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93 FORD RANGER 4.0L SOHC V6 AUTO
255/70 15x10 tires on hurricane rims
4-6x9 RoadMaster highs 4- Sony Xplod 6x9 highs
euro tails
2 1/4" True Dual Straights/ 4 1/2 '' tips
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  #8  
Old 10-21-2010, 06:51 AM
007streetglide 007streetglide is offline
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Default Re: engin revs at start

temp is normal / no codes /
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  #9  
Old 10-21-2010, 06:56 AM
dangerrangerdbd dangerrangerdbd is offline
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Default Re: engin revs at start

never had any oil leakage probs did you?
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93 FORD RANGER 4.0L SOHC V6 AUTO
255/70 15x10 tires on hurricane rims
4-6x9 RoadMaster highs 4- Sony Xplod 6x9 highs
euro tails
2 1/4" True Dual Straights/ 4 1/2 '' tips
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