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Old 06-22-2019, 06:07 PM   #1
cadillac_al
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Re: 1985 Silverado with TPI Fuel Pressure Issues - Long post

Was it a regular rubber vacuum line or a pretty dress up vacuum line?
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Old 06-22-2019, 06:14 PM   #2
madgoatboy
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Re: 1985 Silverado with TPI Fuel Pressure Issues - Long post

Quote:
Originally Posted by cadillac_al View Post
Was it a regular rubber vacuum line or a pretty dress up vacuum line?
It was a regular one. It could've been crimped when I replaced the fuel pressure regulator. I didn't completely remove the plenum when i did it, just lifted it enough to the side so I could get to the regulator. I don't know. I removed all decorated ones a while ago to help with troubleshooting.
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Old 06-23-2019, 04:38 PM   #3
AussieinNC
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Re: 1985 Silverado with TPI Fuel Pressure Issues - Long post

Make sure the tank changeover valve is not clogged with debris....I have personally seen a totally clogged port in a valve so bad that I could not clear it out.....

If you have to, totally isolate the left tank...and get the truck working correctly on the right tank...dont try and do too many changes at one time....

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Old 06-23-2019, 06:38 PM   #4
madgoatboy
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Quote:
Originally Posted by AussieinNC View Post
Make sure the tank changeover valve is not clogged with debris....I have personally seen a totally clogged port in a valve so bad that I could not clear it out.....

If you have to, totally isolate the left tank...and get the truck working correctly on the right tank...dont try and do too many changes at one time....

Thanks I’ve already purchased another just in case.
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