jumping RPM's - Ford Powerstroke Diesel Forum
 
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post #1 of 3 Old 12-16-2011, 08:08 PM Thread Starter
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jumping RPM's

Sometimes when starting truck (more so when its cold outside) it starts up and jumps from 500 to 1000 RPM's within a second. It only stops if i keep it constanly revved at about 1000 for a few seconds. Whats possible cause/fix?
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post #2 of 3 Old 12-16-2011, 10:47 PM
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these trucks are designed to idle high when they're cold

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post #3 of 3 Old 12-16-2011, 11:04 PM Thread Starter
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let me re phrase... it repeadetly jumps until i push and hold the accelerator, not start low and then jump and stay... it has done this for years but i have just lived with it...
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