My tahoe is acting crazy! Sometimes when I let off the gas it dies & sometimes it won't start without giving it gas! It was parked up for almost 3 years before I got it. I don't have a clue what's causing this. I've change the plugs, cap,rotor & wires! It doesn't throw a code either! So a little help please!

 

bad gas??? flush the fuel lines.....I dunno, just throwing it out there.

 

Well thanks! I've changed the fuel filter twice hoping to see something nasty inside but clean as a whistle

 

How about dying fuel pump? bad regulator? clogged poppets?

 

Fuel pump have good pressure? Maf clean?

 

Just asking but wouldnt that effect wot 2? It runs good going down the road! just once in a blue moon she'll die when you let off same as for starting it 2!

 

Haven't checked the pressure! I clean the maf & tb when I changed all the plugs & stuff!

 

Over time the pigtail will corrode. This was the case with my pump when I switched it out for the Racetronix/Walbro.

Also, another thing to check would be the starter. Those wires corrode as well which would cause it to die or hard start.

Both things have happened to me. It is a 13/14 year old truck that has been sitting without TLC. Just throwing it out there.

 

Thanks man for the info! I'll check the fuel pressure next time it does it & hope it something simple as the fuel pump!