I had a 98 blazer, 4.3L; the car is about 65K miles and is suddenly acting weird and not running right, sluggish. The car was shaking when step on the gas peddle. The car is acting like this about 3 or 4 times a day and then running well afterward. I have the feeling that one of the fuel injection doesn't do it job. Can anyone tell me what was wrong with it please?

Thank you

I had a 98 blazer, 4.3L; the car is about 65K miles and is suddenly acting weird and not running right, sluggish. The car was shaking when step on the gas peddle. The car is acting like this about 3 or 4 times a day and then running well afterward. I have the feeling that one of the fuel injection doesn't do it job. Can anyone tell me what was wrong with it please?

Thank you



Has the fuel filter ever been changed?

I had a 98 blazer, 4.3L; the car is about 65K miles and is suddenly acting weird and not running right, sluggish. The car was shaking when step on the gas peddle. The car is acting like this about 3 or 4 times a day and then running well afterward. I have the feeling that one of the fuel injection doesn't do it job. Can anyone tell me what was wrong with it please?

Thank you

Could be many things.
SES light on?

When was your last COMPLETE TUNE UP DONE???
Plugs
Cap
Rotor
Wires
Air filter
Fuelfilter
PCV valve
Cleaned the MAF sensor

try cleaning your maf...did wonders for my sluggisg motor:)

When was your last COMPLETE TUNE UP DONE???
Plugs
Cap
Rotor
Wires
Air filter
Fuelfilter
PCV valve
Cleaned the MAF sensor


DINO55, Thanks for the tips. But a where do I find the PVC valve?

Thanks,

try cleaning your maf...did wonders for my sluggisg motor:)

whats the 'correct' way to clean your MAF?

The PCV Valve is located on the drivers side valve cover towards the back, It will have a black hose connected to it. Pull up on it and twist it and it should come right out. They are about $3.00 at any auto parts store.

Has a tuneup ever been done?