01 sonoma 2.2L hard starting?

Started by Eroq, February 03, 2011, 03:01:48 PM

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Eroq

February 03, 2011, 03:01:48 PM Last Edit: February 03, 2011, 03:03:23 PM by Eroq
This started a few weeks ago, only happens in the morning when it hasnt run all day, after i drive to work and it sits all day it starts up just fine..   It'll crank and crank and crank  occasinally fire and backfire, wont start up tho.

if i let it sit for 30 min or so it'll usually fire up...


New fuel pump/sending unit in may or so...  (AC DELCO)       Havent ran a fuel pressure test on it recently tho, pump primes up no problem, fresh full tank of gas yesterday and still does the same thing

I''m thinking ignition module?    130k miles seems awful low for that to be going out...

Jr

#1
February 03, 2011, 03:38:37 PM
one of your coil packs has a crack in it and is getting moisture in it, you let it run they warm up and all the moister dissapates from it.... you let it set moisture gets drawn back in to it.....
Vehicle #1:  94 S-10 BLAZER 4X4 4 DOOR/CURRENT DD VORTEC 4.3L V-6, AUTOMATIC TRANNY PUSH BUTTON 4X4
Vehicle #2:  93 S-10 BLAZER 4X4 4 DOOR 5-SPEED-HUNTER GREEN/SOLD/PUSH BUTTON 4X4/TBI 4.3L V-6
Vehicle #3:  94 GMC JIMMY 4X4 4 DOOR/MY BABY/VORTEC 4.3L V-6/PUSH BUTTON 4X4/ GONE AND WILL BE MISSED FOREVER!!!!!!!!!!!!!
Vehicle #4:  93 S-10 EXT CAB/2WD/HUNTER GREEN-GREY TWO TONE/4.3L TBI
Vehicle #5:  92 GMC SONOMA EXT CAB 4X4 5 -SPEED/4.3L V-6 TBI/FLOOR SHIFT 4X4


C:\Users\rob\Pictures\BRATTS.jpg

marshall

#2
February 03, 2011, 03:51:10 PM
my old 2.2 was super sensitive to plug wires, any rain or moisture and had the same problem
chevvv proud member of the wrong crowd chevvv

RIP_K52007

#3
February 03, 2011, 04:56:25 PM
That's the same thing my 91 sonoma is doing... I have no idea, I know changing the ignition module would fix mine for a couple days..
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