454 Chevy fuel problems

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454 Chevy fuel problems

Home > Discussion Forum > Mechanic's Corner - Engines

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All Messages in Thread	Author	Date
454 Chevy fuel problems	Mark	9-29-08
Question, I recently purchased a 1984 30' Winnebago chieftain w. Chevy 454 motor. It is in good condition w. 69k on the clock. It died on the highway with my wife and kids the other day. I let the gas tank get down fairly low, oops!, and had to add 6 gallons of gas and take the air cleaner off to get it going. Is this a common issue with these?? Also, my local RV dealer is hesitant to work on it because they say it is "carbureted" and apparently too old. Any ideas would be great... Thanks,
Re: 454 Chevy fuel problems	rich	10-1-08
Hi Mark; your 84 has a mechanical fuel pump on the engine---letting it get that low is definately not good---you have a lot of weight to stop---and when the engine dies---braking is much more difficult--when I was using my older 84 Pace Arrow---I Never let it get lower than 1/4 tank---never know when gas will NOT be available.like the problems currently in the southern and eastern states--also change the fuel filter--it should be on the right side along the frame. and yes---you will get gas all over you-- rich in Va.
Re: 454 Chevy BB Stalling on freeway	drew kelly	10-11-08
1988 Champion LaSalle 32' Class A, chevy 454 BB engine began stalling out after I had driven about 800 miles. This rig has had a multitude of problems. Have done things like replace hoses, new alternator, new fuel filters, new starter, new starter solenoid, new ignition control module, new engine idle control motor relay, plus had to have the a.c. worked on early this summer, had to add four units of freeon or whatever it is called. I have read about a problem with gmc dexcool and engine intake manifold gaskets getting degraded from something in the coolant causing seizing of the whole engine. GM has made a new type of a gasket for this that is less degradable but I don't know if this is my problem. Here is the current issue: Idles way too high, hard to keep idling, and while driving there is a complete loss of power over and over. Sure would like to get back on the road. Thanks for any help you can offer. Drew Kelly
Re: 454 Chevy fuel problems	kelly	11-1-08
I have a (new to me) 1989 sunflyer. the first time out it died on every hill in town. I waited and let it idle and it e\went good for about a half block (until the carb bowl went dry). I replace the engine fuel pump, carb filter and in-line filter (about half way back with 1/2" line in and out. It seemd fixed for the first 100 miloes then did the same thing. I put an electric in line fuel pump on it and it didn't help. I was 200 miles from home. Finally, I thought about the third line on the fuel pump. It is a return line to the tank. I pinched it off and drove home fine. I am sure I have a problem with the tank fuel pume, component or filter sock. But, I wanted to say what I did in a pinch. Kelly

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