hi, i am new to the forums and i am having a problem with my 94 s10 blazer. i recently went to get my oil changed, (i could easily do it myself but i work at an oil change place so i get a discount) and my boss realized that i was 2 qt over on my oil so he changed it and in a week or two it is at a qt over again. So i smelled the oil and it smells like fuel. a couple weeks before this my blazer stalled out because gas flooded the engine. so my boss took a look at it and changed the fuel regulator. so i think that it is either the fuel injectors, or the "spider veins". but i dont know if thats all that could be wrong with it. And also if it is the fuel injectos does anyone have a guide on how to replace them. i got a little bit to tech skills but i woud still consider myself an amature.

me and my blazer thank you for your time.

 

Use the search forum tool or just scroll down and maybe back a few pages and look for fuel problems.

Search CPI spider and you'll get a ton load of results. These ALL fail at some point in their lives. (Little devil laughing)

 

Pull your Plenum off:

1. unplug the sensors
2. remove the bolts ( 1 each Corner, 1 center on top and one center in the back)
3. remove the nuts holdiong wire harness on drivers side and holding coil on passengers side
4. remove the other nuts on those same 4 posts ( 2 on driver 2 on passenger)
5. Unplug the Vacuum hoses large one from brake booster drivers side back end, small one passengers side back end
6 Lift Plenum off and set aside ( I leave throttle cables on mine and set it to the side) You can remove cables and move plenum completely out of teh way

Change CPI:
1. Remove Plenum Gasket
2. squeeze handles together on each poppit nozzel ( Spider-veins) and pull them out of the Hole (unplug all 6)
3. Lift Whole assembly out ( sometimes a small screwdriver on drivers side can be used to help lift the assembly out its seats in there snug sometimes.

Easy as can Be,

Takes about 30 minutes to an Hour ( hour if your slow like me) or 30 minutes because its like a computer plug and Play with those poppit nozzels.

Torque Sequence is Front Passenger Side Bolt then in order clockwise the 2 where the coil bolts on and then on around back up the drivers side , one in front drivers side then the one in the center top. Diagram can be found at Autozone.com for plenum torque sequence