i have a 95 blazer it was hit and miss or after i drove it for a while but it will not go over 2000 rpms and if i floor it it just spudders and spits no power at all. replaced fuel filter and have ran sea foam threw it still no luck idk what to do!!!!!!

 

Have you checked for any codes from the computer?

 

no the light dont stay on goes on here and there but that just started last night trucks been acting up for a couple weeks. is that obd2 or 1 it has the triangle type like a obd2 but no computer on thop of the coolent resovior????

 

Even if the light doesn't stay on it still stores codes in the computer. I believe some 95's are OBDII.

 

I've had two vehicles like that; a Blazer and a Grand Prix. Both had clogged catalytic converters. Neither would rev much beyond 2000, even in neutral.

 

x2 on the plugged cat, take a mallet to the cat and tap on it, if you hear anything loose or rattling the cat is bad.

 

will do i did think of that it was just after i drove it for 40 min or so at first now its all the time 122 k on stock exuast so i give her a try thanks

i hit the cat a few times and can hear lose material inside of the cat . what do u guys think?

 

I had a 95 chevy lumina that would run fine, then sometimes it could not pull it'self through a stop light, the cause was a chunk of cat. honeycomb broke loose and flapping up like a butterfly valve closing off the exhaust. It is where I would start. They are not that expensive to have replaced any more compared to when they first came out.

 

well where i live there is no emissions so i gonna let her breath!

so i am going to fully explain this to see if u guys still think its the cat. at first it would only not do more then 2500 rpms after drving long distance and now after shes warm she wont go over 2000 rpm! do you guys stll think its the cat????

 

A plugged cat sounds like a good suspect.