k1500 wont idle on startup

JonBoy

Active Member
Joined
Mar 20, 2005
Location
Hampstead NC
Happed before but getting more frequent. Anyway 305 on startup its like it will not hold idle and just drops rpm until it dies. mostly happens in the morning. I can keep it from dieing if I give it a little gas. Sometimes it last a min or two. but have never had issues with it dieing while driving. Also when this is happening and I have to give it gas to keep it running it sounds and seems normal.
 
Since it is described as a k1500 I am going to assume we are talking 88-95 with TBI....now if i is describeed not 100% technicaly correct this could all be a crap shoot.....

tps....squirters....clogged (severly) fuel filter...distributor....clogged cat

I have seen alll of the above cause these symptoms....with it getting worse, I tend to think FF would be my first check...

Then again post up some additional info lets see if we can help.
 
This would be a vortech motor .
Can you check the fuel pressure if it is not correct it will not stay running ,also the MAF will cause prolbems .
The first thing I would do is get the computer checked for any codes . also check the all powers and grounds .
 
does it only do it on start up when its cold? and also does it ever cut off while driving. my s10 4.3 started doing that and it kept getting worse and worse till it wouldn't start at all. it started out like yours i replaced the ignition module and it fixed it
 
Not that it did it all the time but cleaned battery post(was bad had to turn battery and beat leads apart) and it has not happed since. Might not have helped but waiting until it happens again before I continue.
 
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