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GM '93 5.7L-dies then no hot start
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<blockquote data-quote="whiterice" data-source="post: 1091283" data-attributes="member: 16109"><p>This is a GMC C1500, 130k that has be running great. Last week it dies while at idle in the driveway and wouldn't restart. It would crank over but no fire. That was at 9:00 at night, so I let it sit overnight. The truck fires right up the next day, but dies about 2 miles from the house and will not start again. I come by where is it parked a few hours later and it fires right up.</p><p> </p><p>Now for what I have done. I have replaced the fuel pump with no better result. Changed the fuel pump rely, same no help, also have changed the fuel filter. No help.. But get this, I am trying to figure this thing out as to way it won't start. I drive it into the driveway, running great. Turn it off,(the truck is at normal temp) and it won't start. It cranks but no fire. So I hit it with some go juice(ether) and it fires and runs fine. Turn it off and it doesn't start, cranks fine but that's it. Spray ether into throttlebody and it fires right up and runs and idles fine. I repeated this about 4 times, each time it wouldn't start without spraying in the ether.</p><p> </p><p>It hasn't died on me today, but at warm up it did miss a little and the tack needle jumped around abut 500 rpms. It was running rough at that time, but didnot die. Then it ran fine...</p><p>What would not let it get fuel when hot and not running? The truck is all OME no add on's at all.</p></blockquote><p></p>
[QUOTE="whiterice, post: 1091283, member: 16109"] This is a GMC C1500, 130k that has be running great. Last week it dies while at idle in the driveway and wouldn't restart. It would crank over but no fire. That was at 9:00 at night, so I let it sit overnight. The truck fires right up the next day, but dies about 2 miles from the house and will not start again. I come by where is it parked a few hours later and it fires right up. Now for what I have done. I have replaced the fuel pump with no better result. Changed the fuel pump rely, same no help, also have changed the fuel filter. No help.. But get this, I am trying to figure this thing out as to way it won't start. I drive it into the driveway, running great. Turn it off,(the truck is at normal temp) and it won't start. It cranks but no fire. So I hit it with some go juice(ether) and it fires and runs fine. Turn it off and it doesn't start, cranks fine but that's it. Spray ether into throttlebody and it fires right up and runs and idles fine. I repeated this about 4 times, each time it wouldn't start without spraying in the ether. It hasn't died on me today, but at warm up it did miss a little and the tack needle jumped around abut 500 rpms. It was running rough at that time, but didnot die. Then it ran fine... What would not let it get fuel when hot and not running? The truck is all OME no add on's at all. [/QUOTE]
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