I'm new to the forum and would like some help. My 2000 blazer dies when given gas from a stop. It only happens when the motor is at normal temperature. So far the things that hve been replaced are: spark plugs, wires, cap, rotor, all vacuum lines. Every now and then when going up a hill pulling a load it will flash the CEL and when I read the code, it's a random misfire. Any help would be appreciated.

 

Checked fuel pressure? Mine would have similar symptoms when the pump was going out. Loss of power under load

 

Yes, I apologize, I forgot to mention I changed the fuel pump and filter a month ago. I was wondering if a bad coil could be the culprit. It may be breaking down under a load when it warms up. I just wanted a few opinions.

 

So as an update: I installed a new coil today with no change. This only happens when the engine is at operating temperature. When I give it 30-100% throttle from a stop, it labor knocks and dies. Sometimes after it dies it takes quite a few rotations before it finally bust off. I changed the oil in it today as well. I'm trying not to drive it as much as I can till i figure this out, any help would be much appreciated.

 

Even though you just did a fuel pump, check the pressure. See my thread about my truck eating fuel pumps. I did like four in one year lol. One lasted two weeks

 

I will get the fuel pressure tested next weekend hopefully. I have heard things about blazers distributors gear getting wore out and causing a list of issues. This is my 3rd blazer, but this is the only one I have problems out of. What fuel pump do you recommend me to buy.

 

Never had a problem with my distributor gear, but I suppose it's possible

I had nothing but trouble with Delphi from advance Auto. Got an AC Delco from rock auto, and no problems so far

 

It is very possible sadly that your new fuel pump is faulty... Over the years I have bought several bad parts, "new or reconditioned" right out of the box that were faulty... You are talking to the "king of bad fuel pumps" with cleburne red Years ago I went through like 4 starters if I remember right before I bought a good 1 lol!!!

 

Man, that's not a title I wanted lol!

Got my fingers crossed that I'm done with fuel pumps!

 

LOLLLLL...... I remember a thread you posted on fuel pumps and cringed!!! All of us on here hope those issues are far behind you