Diagnosis Help
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Laughing Gas
Joined: Sep 2019
Posts: 892
Likes: 158
From: Gainesville
Diagnosis Help
I need some help determining if I have a spark or fuel problem. I have a multi-meter, but only know how to check battery health. Ex turns over like the battery is in good shape. That’s as far as I’ve got. I need a step-by-step how to. I’m thinking fuel or spark, but that’s as far as my brain can go.
Thanks.
Thanks.
Hotshot
Joined: Jan 2004
Posts: 19,768
Likes: 1,082
From: St Louis
Identify your truck including engine.
Crack the throttle slightly while cranking (for diagnostic purposes). The engine also needs air.
If a gas engine, shoot some starting fluid or brake cleaner into the intake while cranking to see if it fires. If it does, you have a fuel delivery issue. If it does not fire, a spark issue.
Crack the throttle slightly while cranking (for diagnostic purposes). The engine also needs air.
If a gas engine, shoot some starting fluid or brake cleaner into the intake while cranking to see if it fires. If it does, you have a fuel delivery issue. If it does not fire, a spark issue.
Thread Starter
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Laughing Gas
Joined: Sep 2019
Posts: 892
Likes: 158
From: Gainesville
Thanks. I’ll try the starter fluid. Hopefully our Ex will not start in my garage and I’ll be ready. If not, I may have to carry a new pump with me along with tools and several empty gas cans.
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