I've checked some other threads and while similar, most are for a different year. So maybe your guys can point me in the right direction.

Main Problem - 2001 Chevy Blazer 4DR - 4WD - Blazer starts perfectly after sitting over night or after an 8 hour or more period. Very hard start when engine is warm, usually will take 3 to 4 tries before finally turning over.

Yesterday I had an issue where the engine would not even crank, and I could here the thud of the starter solenoid, eventually after several attempts I got it started again. So I thought starter is going, so I replaced it, but engine still takes 3 to 4 tries to start when warm.

Things done within the last year:

1. Replaced Starter
2. Replaced Fuel Pump
3. Replaced Fuel Filter
4. Replaced Fuel Relay
5. Replaced Spark Plugs
6. Replaced Cap, Rotor and Wires

Where else should I look?

Thanks is advance

Peter

 

What brand did you use for the tune up and fuel pump? On those items its very important to use delco or delphi. I would start with a fuel pressure and leakdown test to determine if the problem is in the fuel system.

 

I had this problem with my '96 Sonoma. Always took 3 tries to start when warm. Problem seemed to go away when I replaced the lower intake manifold gaskets.

 

Thanks Gents.

The fuel pump was replaced by a shop, so I'm not entirely sure what brand.

I have a fuel pressure gauge, so I'll give that a go.

Other then the Fuel Pump, Filter or relay, what else fuel related could cause this?

Thanks

Peter

 

It could be a leaking fuel injector or pressure regulator. Was it doing this before the pump was replaced? You can also look down the throttle body with a flashlight and a dental mirror if you have one. If you see gold spots or it looks really clean, you know you have a leak in the plenum (either the injectors or fuel pressure regulator). Hopefully the shop didn't put an airtex pump in, they are junk and fail way too often.