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cold engine stumble/high idle

9

96SEMAN

New CEG'er
Joined
Feb 10, 2003
Messages
6
Location
Saskatchewan Canada
This one is killing me to try and figure out,but when I start the car cold from sitting overnite I can hear a bit of a whistle noise from under the hood,and the car will jump up to about 1800rpm,after about 90 seconds to 2 minutes it idles down until it almost stalls,and then runs normal-any ideas??
I previously had a CEL lite and repaired some vacuum leaks,but I can't track this one down...
 
Probably a gasket (UIM/LIM, IAC, TB or something related to air, not liquid). When it warms up, the metal part expands and seals the leak.
 
i took it in to the ford shop,and they replaced the UIM/LIM gaskets and some vacuum lines,now the car seems to idle at around 1800 rpm after coming to a stop,and takes 10 seconds or so before it idles down but only to around 1000 rpm or just under-anybody else run into this? I've been chasin this for 3 weeks now
 
96SEMAN said:
i took it in to the ford shop,and they replaced the UIM/LIM gaskets and some vacuum lines,now the car seems to idle at around 1800 rpm after coming to a stop,and takes 10 seconds or so before it idles down but only to around 1000 rpm or just under-anybody else run into this? I've been chasin this for 3 weeks now
Click to expand...

Same problem here..
 
96SEMAN said:
i took it in to the ford shop,and they replaced the UIM/LIM gaskets and some vacuum lines,now the car seems to idle at around 1800 rpm after coming to a stop,and takes 10 seconds or so before it idles down but only to around 1000 rpm or just under-anybody else run into this? I've been chasin this for 3 weeks now
Click to expand...
So the Ford shop let the car go without fixing the problem? Take it back while you still have the service guarantee!
Karl
 
EXCEPT I DON'T WANT THEM TO KEEP IT FOR ANOTHER 2 WEEKS,SO I CHANGED THE IAC WHICH NOW BRINGS IT THE IAC TEST INTO SPEC,LOOKS LIKE I HAVE A PROBLEM WITH THE EVAP SYSTEM NOW...SO MORE TESTING TO DO YET (SIGH)
 
brutal-in the end-i found the problem-which was a stuck PCV valve-unbelievable,the ford one cost me less then $10 and the car now runs better then ever. (did i mention brutal?)
 
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