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86 GN is hard starting once it's hot, any ideas?

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PaulRV6

Active Member
Joined
May 25, 2001
Messages
1,526
So this is a new issue, but the last couple of weeks after driving and it's warmed up I shut off and go into store for a short time and then try to start it it doesn't want to start. Go back into store for 1/2 and then try again and it starts right up. I don't really know what to check first. So any thoughts or ideas please fire away and I will provide any input I can. It has an LT? mass air sensor with translator and stock ecm with alcohol chip (chip by well known Buick guru). Thanks
Paul
 
Is the fuel pump priming properly when hot on the restarts?
A spare coil pack and module for testing would be a good start as mentioned.
 
Simple question, but how old is the battery?

Starting amps are holding?
 
Last edited:
Yes the battery is old. I went and got a new one right after I posted this because I got thinking about the age of the battery and often I have to keep a charger on it. You nailed it. Thanks

paul
 
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