I Need Help With my TBI Injection Hesatating

[pplblazerdude]

I have a 88 fullsize blazer and it has a 350 with a tbi and when i stop and bearly hit the gas anuff to just get it to putter the truck starts to hesitate i mean it will start to act liek it is going to die and jerk along but once i get going it runs good does anone know why it does this if so plz help me. /forums/images/graemlins/k5.gif

 

[unsane]

Try to do a search, this is a common question. Hers is a couple searches I did on it. TBI Problems link tbi problems #2

 

[Derf00]

When was the last time you replace the fuel filter?

 

[fortcollinsram]

I second the fuel filter..my K% ran like crap until I found that the fuel filter was plugged solid with crap...Replace the fuel filter, run som BG 44K through it and see if that helps...

Chris

 

[husurddy]

My (87 tbi) hesitated on initial acceleration and it drove me crazy for a while. I was stumped because I had a fresh tune-up, EGR and 02 sensor, filters ect. Come to find out my new EGR was sticking. I took it back and replaced it and viola, problem solved. /forums/images/graemlins/grin.gif …Bryan

 

[YtseJam]

check for a restricted fuel filter or low fuel pressure. If that is ok and your ignition system is well tuned, I would check the TPS.

 

[thebigdaddyof2]

If the EGR valve isn't sticking (or stuck), replace the IAC solenoid. Cheap and easy fix.

 

[YtseJam]

If the EGR valve was sticking or stuck, it would stumble and idle rough. The IAC will not cause the hesitation. If anything the IAC will give you a high, low or hunting idle speed if there is a problem or a vacuum leak.

 

[thebigdaddyof2]

Wow.
By the way he describes his problem, it is stumbling.....