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[Matt Mosqueda]

Update again. I figured it out. It’s the computer itself. Apparently Jeeps are known for a few bad capacitors on the board preventing them from starting when its cold. I went out and heated up the computer with a hairdryer and it started up no problem. Looks like we are going to be pulling the board out and installing 3 new 220 uf 35wvdc capacitors.

[Matt Mosqueda]

Just to give an update, I was able to get it started yesterday FINALLY. It was quite nice out plus using the new ignition coil was able to get it started. I let it get up to operating temp and then shut it off. Also tested reliability by making sure it started repeatedly. Today, it’s cold outside and also dead again. I even replaced and put a brand new battery in it because I thought we were almost done. Not sure why it won’t start in the cold even with practically new everything. I can guarantee that when it warms up again it’ll start like its no problem at all. What could cause it to be so picky about temperature?

[Matt Mosqueda]

Lets start even simpler than that, exhaust heat shield? Is is more humming or more buzzing?

[Matt Mosqueda]

I am going to compression test tomorrow, need a day off from it… I am thinking spark related. Waiting to borrow a multimeter from a friend soon to test. Mine was in the trunk of another vehicle when I was rear ended and it got destroyed. Needless to say its been a long few weeks lol

[Matt Mosqueda]

I had meant crank position sensor FYI not cam position sensor… Also should add that I used a jumper on the fuel relay (which was also replaced) in order to drain my tank and put in fresh fuel to rule out bad gas since it has been sitting awhile.

• This reply was modified 3 years, 1 month ago by Matt Mosqueda.

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