2002 blazer won't start after rain or damp weather
 

Please help.
blazer won't start after rain or damp weather.
when the sun hits it it will start.
It sometimes starts in wot or pumping.
check fuel pressure it was 59 psi bleed down was 54psi
Replace fuel pump and filter.
Problem still their new fuel pump psi is still 59 psi bleed down is 55 psi.
I drop a new distributor in her plug wires all ac Delco.
Problem still their. No start after rain really morning damp weather it is hit and miss.
Dealership won't touch it any more they have no clue whats wrong with it.
​​​​engine dose run great know tick knocks dosent burn oil
170 k on it . It is a 4 by 4

1. When it wont start see if you have strong regular spark at a few plugs.
2. If not, do you have spark out of the coil?
3. If all that's good then what is the fuel pressure leak down when it wont start.
4. If all that is good then we move on to fuel injector pulses.

If you have spark issues then we will explore that further and get to the bottom of it.


George

Follow George's advice.