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Discussion Starter #1
My 91’ 2.5 is running kind of weird, it runs good for awhile then starts acting up. The check engine light comes on then starts miss firing. I will pull over check connection,hoses etc. I notice the exhaust manifold is red hot. I will let it set for a few minutes and it will run good again until it does it again. This little blue girl is my work truck and any suggestions will be helpful.Ive tuned it up set the timing at 8* changed plugs and wires.
 

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time to get cereal
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3,214 Posts
This may help.

 

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94 4x4,01 Blazer
2001 Blazer 4dr 4wd LT
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1,059 Posts
lean engine runs hot hot hot- check/change fuel filter ,then fuel pressure check
 

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Discussion Starter #8
I’ve changed fuel filters and changed cap and rotor from gm, I’m really thinking it’s the distributor, timing was set and keeps the timing with no issues
 

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time to get cereal
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It has a distributor? I may be confused but thought they were DIS by '91.

I guess only the cars got DIS. GM would do that.
 
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