Having problems with your 1994 Chevrolet S-10 Blazer ?

No o-rings on the poppit spider 4.3 1994 S10 (acceleration miss)

\015 Its begun to bug me the poppits are a pretty loose snap-in fit in their bores and the system depends on intake tract vacuum to pull the pontil off its seat to spray fuel into the combustion area, why wouldnt their be a good chance for a vacuum leak around each poppit, lessening the incoming charge, if a charge is able to be activated at all - just had a professional power benzene cleaning of the poppits/ fuel system from the nut kit forward, no change, $89.95- there are slots on each poppit for a possible o-ring- did they omit them because they get so tight/stuck in the bore ? sooo tired of Chevys experimenting (darn, that ideas junk , oh well, theyll come back and buy a new vehicle from us)\015 Posted / edited by AnonymousUser on : 19-02-2018

Answers :

OK I'm going to try this: There should be a rubber "o" ring around each injector (seems like a loose fit because the rubber has some "give") If you've had it apart and there were no rings either on the injectors or still in the head, there should be.
System vacuum does not open the injector, it is activated by an electric solenoid inside it. (why there are wires going to it)
I don't know what problem you have but regarding injectors, sometimes besides electrical failures and fouling, the orfice gets worn (as does any high pressure orfice ie: the nozzle in an oil fired furnace) This affects the spray pattern and amount of fuel being emitted.
And as far as american cars go, chevy isn't too bad...I once owned a Rover 2000tc It drove me crazy!!!
Repair Help & Product Troubleshooting for 1994 Chevrolet S-10 Blazer

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