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Does this sound like vaporlocking or ????
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<blockquote data-quote="Harvester of Sorrow" data-source="post: 1448937" data-attributes="member: 16004"><p>It is a 1983 1 ton 2wd Chevy quad cab long bed. 454 with a 4spd manual.</p><p> </p><p>The truck has run flawlessly until last fall. It started running shitty and I assumed that it was due to dirty/wet/bad fuel since the rig sits frequently. So I put some HEET and octane booster in it and it started running better/great/ and I towed the scout over to Naches with it. Fast forward to this last tank of gas and it is progressively running poopier.</p><p> </p><p>1. When "cold" it seems to be running "ok". Then, once I get up to 140'ish+ engine temp it will start flat dying under loading. If I stay in it, it of course bucks and spurts everywhere and still will die. Acting way worse than just wet gas. Full engine kind of dead, not just a backfire and miss.</p><p> </p><p>2. Takes a good bit of starting to get the thing fired back up. On average about 10 minutes of sitting...then flooring throttle with some decent short term cranking.</p><p> </p><p>3. Runs at very low idle speed while crawling and then might still die.</p><p> </p><p>I have never had a vehicle vapor lock...so I am clueless if this is what it is?</p><p> </p><p>Should I just put an in-line electric pump in place after my tank selector?</p></blockquote><p></p>
[QUOTE="Harvester of Sorrow, post: 1448937, member: 16004"] It is a 1983 1 ton 2wd Chevy quad cab long bed. 454 with a 4spd manual. The truck has run flawlessly until last fall. It started running shitty and I assumed that it was due to dirty/wet/bad fuel since the rig sits frequently. So I put some HEET and octane booster in it and it started running better/great/ and I towed the scout over to Naches with it. Fast forward to this last tank of gas and it is progressively running poopier. 1. When "cold" it seems to be running "ok". Then, once I get up to 140'ish+ engine temp it will start flat dying under loading. If I stay in it, it of course bucks and spurts everywhere and still will die. Acting way worse than just wet gas. Full engine kind of dead, not just a backfire and miss. 2. Takes a good bit of starting to get the thing fired back up. On average about 10 minutes of sitting...then flooring throttle with some decent short term cranking. 3. Runs at very low idle speed while crawling and then might still die. I have never had a vehicle vapor lock...so I am clueless if this is what it is? Should I just put an in-line electric pump in place after my tank selector? [/QUOTE]
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Does this sound like vaporlocking or ????
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