wrench turners question???

[HEADHUNTER71]

i have a 2000 chevy tracker 2.0 straight 4 .im having problems with it staying on when i ingage the A/C? plus its alil weak going up hill or excellorating? done the head gasket,timing chain,water pump, im stumped whats the DEAL??

ANY INFO IS APPRECIATED! THANKS HH71

[bwssr]

you may have a vaccum leak some place..a line....

[redfish]

x2 on the vaccum leak.

[Strain]

x3

[bwssr]

also...be very sure the plug wires are on, good and in the right firing order....2 plugs swapped is 50%

[Tommyh]

check the EGR valve to make sure it is not being engaged prematurely. MAP sensor is possible as well. maybe MAF sensro.

[tex4k]

Been a coupla-three years since driving a chevy, but we were having problems with them losing power and not staying running. There was a vent for the gas tank up under them and it would get plugged up with dirt, usually your first clue was when you pulled out to pass, then realized your weren't gonna get-er done. Probably no help but there it is.

[HEADHUNTER71]

but it runs fine when A/C is off but still weak??

[HEADHUNTER71]

ttt, any more input fellas?