how do I check for fuel pressure 1994 4.3L vortec

Mike Allen

Asked by Mar 20, 2014 at 11:34 AM about the 1994 Chevrolet S-10 Blazer 2 Dr STD SUV

Question type: Maintenance & Repair

OK Hi, the history first .
#1: it started out as a crank no start, so checked for spark and it was present to the dist. so replaced fuel filter, fuel pump and screen.I still had a no start(
#2:replaced spyder assy. and regulator which at least made my rig TRY to spark and sputter{
#3: all sensors were replaced EGR removed cleaned still no luck(
#4:replaced whole distributor, cap-n-rotor wires plugs it started right up wootwoot...but wait, 1 week later back to crank no start again and this time I heard the pump through filler neck and then checked spark again present((   I hope you can help thx!

1 Answer


make sure you have the right fuel pump. Aotozone sold me the wrong one and I had the same problem. two fuel pumps will fit but they have different pressure settings. One is for throttle body and one is for multiport. I had a garage put the right one on and now it starts. I have another issue but at least I can drive it. I hope this helps you out.

Your Answer

Add photo

Related Questions

Search Chevrolet S-10 Blazer Questions

Chevrolet S-10 Blazer Experts

#1 carGrrl
Reputation 1,070
#2 Cody Doud
Cody Doud
Reputation 540
#3 emtfirefighter77
Reputation 210
View All

Related Models For Sale

Used Chevrolet Blazer"
1,649 listings starting at $1,999
Used Chevrolet S-10"
13 Great Deals out of 1,811 listings starting at $1,749
Used Chevrolet Tahoe"
1,076 Great Deals out of 36,075 listings starting at $1,700
Used Ford Ranger"
262 Great Deals out of 7,708 listings starting at $988
Used Toyota Tacoma"
623 Great Deals out of 30,504 listings starting at $2,850
Used Ford F-150"
3,268 Great Deals out of 216,650 listings starting at $1,500
Used Chevrolet Camaro"
797 Great Deals out of 38,852 listings starting at $2,650
Used Chevrolet C/K 1500"
1,138 listings starting at $2,400
Used Ford Mustang"
731 Great Deals out of 41,065 listings starting at $900
Used Dodge Dakota"
161 Great Deals out of 4,799 listings starting at $900