idle problem

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June 17th, 2010, 9:33 AM

#11

Night Train

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Quote:

Originally Posted by gotstylez

so just started today is that when i start it it runs like it has a big cam then idle sup to 1500 then it starts idleing like befor 1000 RPM or so.. AND on the way home a few mins ago it stalled out for no reason... any help?? i plan on taking the EGR off this weekend and trying to clean it.

I am having the exact same issue with my 97 ck1500 ext cab, 5.7liter. In the last few days it all of a sudden started idleing at 1500 where it should be down at 500 when in park or neutral.

I cleaned out the K&N filter, no improvements. I've had the fuel pump replaced about a year ago...

Any ideas? It does not do this as bad in cooler weather.

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June 17th, 2010, 10:29 AM

#12

gotstylez

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Originally Posted by Night Train

i fixed my rough idle and everything, it was the vacuum line that goes to the map sensor to the back of the throttle body.. as for the high idle.. im still trying to find out..

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June 30th, 2010, 1:12 PM

#13

Night Train

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Quote:

Originally Posted by gotstylez

i fixed my rough idle and everything, it was the vacuum line that goes to the map sensor to the back of the throttle body.. as for the high idle.. im still trying to find out..

Hi Davey, Any luck yet? I'm still trying to figure mine out but I do not yet have a service manual to troubleshoot and identify parts and assemblies.

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