1984 Chevy Blazer Sputters and Bogs

GMC
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CRAZYCHEVBLAZER
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  • 1 POST
I have a 1984 chevy blazer full size. When i first start my truck in the day and i push the gas it like bogs down and sometimes stalls. After i get it running for a bit when i got to accelerate it has a little pause then it takes off. I have changed the somethings. I put in a open air filter and took out the old one. I put a brand new rotor cap and distributer in it. I was going to put a new fuel filter in it but for some reason i can not find where it its at. I know it is a inline filter and is located on the frame on the left when facing the front of the truck. I run my hands along with the fuel lines but can't find one any where. What else could be the problem with this loss of power??
May 6, 2006 at 7:30 AM
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LOSONE
  • ✓Experienced Mechanic
  • 1,616 POSTS
I think that vehicle has a vacuum advance on the distributer. It uses vortex vacuum. It could be bad or a bad hose.
May 6, 2006 at 8:41 AM

Suggested Repair

Inspect the distributor vacuum advance and its vacuum hose; a failed advance unit or leaking hose can cause the bog and hesitation.

Conversation Summary

The owner of a 1984 full-size Chevy Blazer reports bogging and occasional stalling when accelerating after a cold start, then a brief pause before the engine takes off once warmed. An open-element air filter, rotor cap, and distributor were already replaced, and the inline fuel filter could not be located on the frame. The expert says the distributor uses vacuum advance with vortex vacuum and that the advance unit or its hose may be bad.

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