1990s Chevy Astro start-up problem - Engine Troubleshooting


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1990s Chevy Astro start-up problem

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Cinegeist
New User

Mar 28, 2010, 3:27 PM

Post #1 of 3 (3918 views)

1990s Chevy Astro start-up problem	Sign In

Hi,
just got a 90s Chevy Astro that wasn't running and set for about a year because it wouldn't start up the next morning after coming back from the shop for some fuel system repairs. Turns out the interior lights were left on. Got a new battery & the thing started right. Everything sounds ok. Took the van on a short drive and worked well.

Problem: after parking the van - tried starting it again and the engine rotates but wont start. Tried the procedure several times. Starts right up with no problems when it's been sitting for hours. But wont start once the engines warmed up from driving or idling.
Ideas on what needs to be fixed would be appreciated. Thanks!

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Mar 28, 2010, 4:10 PM

Post #2 of 3 (3912 views)

Re: 1990s Chevy Astro start-up problem	Sign In

Guess: A year is a bit long for the gas that was in it unless properly treated and stored. It might be clogging the fuel filter after some time running and slowly blocks enough to shut it down.

I would just up and replace fuel filter anyway and a product called SeaFoam used in moderation may break up bad fuel to be able to burn it thru or drain it and start fresh. If it was outdoors with weather extremes there could be a build up of moisture/water that's just too much for it so I'd use some "moisture removing" dry gas too.

The guess is a fuel issue and may just be as said. You might be able to quickly test for fuel pressure or observe it AND check for spark too when it's down as checking when it behaves won't show much,

T

Sidom
Veteran / Moderator
Sidom profile image

Mar 28, 2010, 4:41 PM

Post #3 of 3 (3905 views)

Re: 1990s Chevy Astro start-up problem	Sign In

Tom has some good tips that should really be done to any vehicle that's been sitting for any extended period of time. I think it's always best to take care of the maintenance issues 1st, just because it's something that needs to be done regardless and sometimes you winded up killing 2 birds with one stone & solve your problem as well.

If the problem is still around then you are going to want to make sure you have fuel & spark while the problem is happening. If you've got both, considering the symptoms I would probably want to look at a datastream and see what the coolant temp & air intake temp sensors are reading. If the get slightly skewed cold, this can give you warm start & running problems............

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