1992 Chevrolet S10 Blazer Q&A
1992 Chevrolet S10 Blazer Question: blazer running very rough
My Blazer has been sitting for about 10 months and has been started a few times within those months.. It now runs very rough.. when first started, it idles very hard up and down, up and down. Then when I go to drive it, it acts as though the gas is being cut off from it and jerks very violently.. I'm not sure if anyone else has had the same issues. It is a 4 door 5 speed 4x2. It may be the egr valve, I'm not sure.. the fuel filter was change 2 years ago. please help. - beeans
Check your map sensor.. It runs to your breather.... Unplug it or it's unplugged. That's one of the possible idle ups and downs. - Jhama009
My blazer was doing the same. I changed the plugs and wires and then used multiple rounds of injector cleaner on it and the rough idle got better. Im going to change the starter, oil/filter, transmition fluid/filter, and hoses to try to get it gone totally. - zsmith93
I COULD TELL YOU A ANSWER THAT WORKED FOR ME AND THAT IS THE SPARK PLUGS FOULED OUT AND I HAD TO BUY NEW ONES THE CHEAP PLUGS ARE AC DELCO AND THEY SUCK WHAT HAPPEND IS THAT ONCE THE MOTOR HAS WARMED UP AND YOU SHUT IT DOWN THE PLUGS FOUL OUT OITS WEIRD BUT THATS WHAT WE3NT ON WITH MINE I PUT ANOTHER SET CHAMPIONS 2'39 EACH AUTO ZONE AND IT RUNS PERFECT YOU COULD TRY IT IF YU WANT - mrmatthew50
my 1994 chevy s-10 runs roughr, missing out when driving eats gas ,bogges down , please help
I have a 1991 S10 Blazer 4x4, with a 4.3L V6.. it has 193000 miles on it, but it has been well kept up. It was running just fine until one day recently I was drving down the highway and it star...
I was having problems with the engine running after it reached operating temparture. It would idle roughly. When I took off valve covers the rocker arms and push rods were covered with carbon. ...