Question about 1994 Chevrolet S-10 Blazer

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My s10 is hard starting and running it smells like fuel its dumping in the top of intake by the spider injectors i changed the fuel regulater it stil ideld rough but ran ok after 1200rpm then started bogging after an hour of running then the cat was glowing red so i cut it out then ranit again then it startd to bog again then it ran out of fuel so i put 5 gallonsin the truck then it died again 10mins after running then i was starting to smell fuel again its in the oil and coming out of the tail pipe so should i be suspecting the spider injectors or wat i just dont know were to look any more. thanks larry

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Sounds as though the poppets or spider injectors need
replacing
The Converter is shot also, with the red glowing as well
as all the O2 Sensors

Posted on Mar 17, 2011

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1996 gmc 1500 vortech 5.7 stars then suts off
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My 2000 Chevy S-10 with a 4.3 vortec is hard to start since I changed the intake gasket. Once started it runs great. Whats the problem.
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the spider injection sys. is a piece of you know what. and I hate it as much as you do. it takes 55-65 psi of fuel pressure to fire those injector popets. If you have to take off the upper intake again, replace the regulater on the spider assy. since your in there. and look for strong spark at the plug, the type of spark that jumps at ya and bites you when your not lookin.

Sep 12, 2010 | 2000 Chevrolet S-10

1 Answer

1994 S-12 V-6 Vortec Dumping Gas into the Oil Pan
If it's a "W" VIN (8th Digit) check the spider injector on the intake manifold. Throttle body will come off with the intake cover, ten 10mm bolts, and two 8mm holding the fuel lines in place. Once you move a few things and lift it off. (and unplug the big plug in the top that actually goes into the spider injector, about 12 prongs on it). Gently pry the spider out of the cradle on each side and squeeze the tabs and pull out each of the 6 injectors. If you take your time a novice can do it in about an hour.

Mar 08, 2010 | 1994 Chevrolet S-10 Blazer

2 Answers

1999 chevy astro wont start has spark and fuel preasure someone looked at and said they think a injector might be bad under the plentum does this sound right before i start tearing apart motor
if you vehicle has a Vortec engine it's possible for and injector poppet to spring a leak , My $$'s on the fuel pressure regulator . it's underneath the plenum (under throttle plate) and to the rear of the injector spider . most times it leaks fuel into the rear cylinders

Jan 17, 2010 | 1999 Chevrolet Astro

1 Answer

I have a 95 s10 4.3 which starts nd runs fines
spider injection is a common problem with these vehicles, is it consuming gas more than usual, is the oil smelling like gas? The spider is located under the upper intake plenem. There is also a fuel pressure regulator connected to the spider assembly that may be faulty.

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2 Answers

Replacing the o rings on a 95 chevy s10 2.2
The Injectors are right there in opening of the throttle body. There are not individual injectors for each cylinder.
There 2 or 4 injectors that spray the gas right on top the throttle plate. The entire manifold is filled with the gas/air mixture.

Oct 04, 2009 | 1995 Chevrolet S-10 CA Edition

1 Answer

95 S10 blazer won't start
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Apr 12, 2009 | 1994 Chevrolet S-10 Blazer

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95% chance its the fuel injector (spider). Take the upper intake manifold off and turn the key on and off a few times and you will see fuel leaking from the spider.

Jan 28, 2009 | 1994 Chevrolet S-10 Blazer

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