Hi. I have a 95 Blazer that has been running rough for a little while. It drives like it's missing, but usually is worse when it's warm outside. About a month ago, she stalled out and wouldn't start, I replaced the cap, rotor, wires and plugs and she started up, but still ran rough. Today I started her up just fine (the temp outside was 6 degrees) and took my daughter to school, stopped for gas and shut her off, and could not get her to start. (battery is fine, she cranks but no start) I checked at the fuel line where the filter connects and it seems to be getting fuel. I checked all the plugs for spark, and all are getting spark. I'm not an experienced mechanic, and I do not have fuel pressure gauge, etc., but I was wondering if anyone had any ideas where I should start. Any suggestions or tips will be appreciated. Thanks.

(Didn't see the other thread titled "95 Blazer Troubles" until after I posted this ...lol)

 

Your engine requires >55psi of fuel pressure. Test the fuel pressure and leak down with a fuel pressure gauge connected to the fuel pressure test port located off the back of the intake manifold near the brake booster.

 

Thanks. Could anyone tell me, do I need to buy a fuel pressure gauge, or does any places rent them out?

 

Okay...I found out I can rent a fuel pressure gauge from Auto Zone. I guess my only other question is, if my fuel pressure is too low does that mean I need to replace the fuel pump? Thanks for the reply.

 

I had the same problem with mine, and accidently brought it to the stealership and they told me it was my fuel pump. Well after R & R the fuel pump, it still wouldn't start. Checked the fuel filter under the rail near the drivers side fr. seat and I could barely blow through it. That would be your first thing to do is remove your filter, and check that first, and if it hasn't been replaced, replace it anyways. But like Swartlk stated, you must have 55 lbs. pressure at the rail after replacing your fuel filter.

 

Thanks for the replies. I forgot to mention I changed the fuel filter about a month ago along w/ cap, rotor, plugs, etc. I'll be getting the FP gauge and starting with that. thanks.