My 91 s10 blazer 4.3 v6 tbi

Asked by Alex Oct 24, 2020 at 09:52 AM about the 1991 Chevrolet S-10 Blazer 4 Dr Tahoe 4WD SUV

Question type: Maintenance & Repair

91 s10 blazer 4.3 l v6 4x4 when I start it it turns but have to
feather gas pedal to keep running smooth if I take my foot
off it runs shitty or dies also when I am driving it around my
yard if I hit the gas or brake pedal to hard it cuts off on me
and I have to put it back in park replaced fuel pump fuel
filter oil change. Oil filter spark plugs

2 Answers

100

Many things do as you describe. Get the codes read at the parts store to help get you started . mass air flow sensors, plugged pcv valves. dirty air filters, ignition coils, bad plug wires even leaks to booster pump on brake system.

Well I think its my throttle body bc I can unhook the hose at the very end that goes to my breather and it cranks and runs fine drives fine checked off vavle gotta replace it and my throttle body had gunk in the pcv hose spot

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