Lately when I start my far it revs up for like 3-5 second...
Responses
Jaybird61
260 days ago
Hi, my name is Jay
If vehicle is started in cold temperatures it may temporally go to high idle for short periods to keep [engine](/topics-engine-ford/) running and this is normal as long as the idle is not going above about 1200 rpm and then comes down after up to about 10 seconds.
Jaybird61
260 days ago
How high is idle going when first started? Does it still do it once engine is warmed up?
Customer
260 days ago
I did only notice it start a few months ago when Temps. Dropped. It goes around 1500 RPMs never seen it go past 2000. No around 3-5 seconds right when I start it then never does it while running
Jaybird61
260 days ago
This can be a vacuum leak in the intake manifold seals and can leak when cold and as it warms and expands it seals back up. You can just let it warm a minute before driving or have a mechanic check intake manifold for vacuum leaks and may need to replace intake manifold gasket seals.
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