TBI Random misfire...only hot???

[95BlackTahoe]

My 95 Tahoe is acting a little weird...It starts and runs fine, no miss, no anything...until it warms up.

After it warms up, I have a intermittent miss and I am about ready to start tossing parts at it. Was just wondering if anyone else had this issue, and if so, what was your cause? The Tahoe has 243k on it, doesn't knock or smoke in anyway.

Since I just got her, I'm not too sure what all has been done to it. Looking under the hood, I'd have to say it looks stock, aside from the oil filter.

Where would be the first place to start? Coolant sensor?

Thanks!

Shawn

 

[SunlitComet]

test your computer coolant sensor and clean the egr system.

 

[95BlackTahoe]

Well, the new temp sensor seems to have solved 90% of the issue. I am hoping to complete a simple tune up on it now...Hopefully, that will take care of the rest.

Shawn

 

[ChrisAU]

I was just about to say new temp sensor, the one in the intake. If the wiring looks corroded put a new pigtail on it too.