Hesitation On 94 Full-size

[winsett]

BELOW IS A PREVIOUS SUBMISSION THAT I HAVE STILL NOT BEEN ABLE TO SOLVE. HOWEVER, I FORGOT TO MENTION THAT I DO NOT EXPERIENCE THE HESITATION WHEN THE ENGINE IS COLD (JUST STARTED) AND THE HORSEPOWER SEEMS INCREASED AT SUCH TIMES. COULD THIS PROBLEM BE A COOLANT TEMPERATURE SENSOR?


I've got a '94 Full Size Blazer with hesitation problems when I accellerate.
Replaced: Fuel Filter, Plugs, Distrib. cap, fuel pump, fuel sending unit, O2 Sensor, and the air filter with a K&N. Also, my plug wires look fine as does my fuel lines.

It seems only to choke/hesitate from a stopped position with heavy gas applied. My I am not too familiar with the TBI system, but am contemplating gettting the Throttle Body Spacer. I haven't checked the fuel pressure, but I'm assuming its OK considering all the new parts I have added.
Please give some helpful advice if you know any possible solutions to this problem

[Fractured1]

Have you checked all your vacuum line thoroughly...play close attention to where they actually connect and any place they could rub through..

[winsett]

Fixed it!
Turned out to be a loose distributor and 'retarded' timing. Timing gun and an elbow wrench and engine was snorting waiting to be driven!
Thanks all..
Winsett Ruffner

[BlazerLT]

nice, timing seems to be a problem with all older OBDI engines.

Needs to be made a part of routine maintanence. Any 1995+ doesn't need to be timed.

Glad it worked out for you.