kalynzoo
Los Angeles , California
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Joined: 12/30/2005
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I developed a fuel line problems in my Holiday Rambler 454 some years ago. After having various mechanics attempt to diagnosis a problem, a truck tech in Victorville traced the line to a 3rd fuel filter near the propane tank, hidden by road dirt. One filter on the carb, one near the engine, and this one rear near the fuel tank. Replacing this clogged filter solved my problem. I then had that filter changed with each service.
Hope your solution is that simple, though at the time it was aggravatingly perplexing.
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Ron8877
Blaine, Washington
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Joined: 03/20/2006
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I have the same problem. When we took off on our fall trip in Sep. we had a problem going over high steep hills. We were going over Lolo Pass in Idaho when it just wouldn't run any longer. If we let it sit and ran the back tank we could get it started and go about 50 feet and it would stall again. Spent night on pass, got towed to Missoula, got new mechanical fuel pump installed ran good until we needed gas for hard climb then would only run on back tank. I know that the back tank has an electric pump on it because when they were changing the mechanical pump turned key on and had gas coming to the intake side of pump. Don't think that front tank has electric pump as the front tank only works good when it is cool or going downhill. Don't know how to get electric pump on front tank but I think that that would make the mh run good on the front tank as well. Some of you knowledgeable people want to let me know what you think and how to take care of this problem? Thank you.
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sum1
So-Cal
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Joined: 11/07/2005
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Ron8877, Im guessing that your rubber lines need replacing. They're probably sucking air from cracks and loose fittings. I know that that's not what you want to hear, but the symptoms are classic.
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Mike Hohnstein
Germantown, Wi
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Joined: 01/04/2004
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Hmm, ALL Wanderlodge fuel lines are copper. In fact the house water system, air system for suspension and brakes is ALL copper. Still seems to be working OK after 26 years.
On the supject of the thread, 200k miles towing all over this great country with various 454 vehicles, I learned that the HEI distributor is the most likely componenet to give you trouble. It's a good idea to carry a spare complete with cap, coil and set of wires. The comments relating to fuel recirculation are very well taken.
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croquetman
Michigan and Palm Beach County Fl
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Joined: 06/14/2007
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I suspect after thinking about it and listening to the info on here, that is it vaporlock, or gas boiling in the carb.
I changet the fan clutcn 2 yrs ago, but now tha ti think of it, i have not heard the fan running after a long climb like it used to do, bet it is bad and carb is to hot.
will check that out and let u know
Lee
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kalynzoo
Los Angeles , California
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Joined: 12/30/2005
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When I had my holiday rambler with a 454 a similar problem developed. After many trips to many mechanics, a truck center, after giving emergency assistance found a 3rd fuel filter above the propane tank. One filter on the carb, one in line filter, and this third filter near the tank hidden by the propane tank and covered with grit. Once found and serviced regularly the problem never reoccurred. Hope you are as lucky. Happy Trails.
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bill h
coastal reconquista
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Joined: 08/02/2001
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Distributor modules and coils can fail when hot, too.
84 Barth 30 tag powered by ht502/Thorley, Gear Vendors OD
Siamese Calvin and Airedale Hobbes
4WD Toyota toad
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chucl66
Milton, Florida
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Joined: 01/31/2007
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Hi,
I had the same problem, on my 454. I changed all the same things mentioned.
I turned to be the mass air flow sensor. Replaced that and solved problem.
Chuck
Chuck & Laraine
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ticat900
Vernon BC
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Joined: 09/16/2006
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Polishnurse wrote:Have you checked your oil, meaning is there any indication of water, or perhaps when you start the engine, is there any white smoke. I'm thinking a head gasket. Bill
How many miles are on this rig. 23 years old, better hope some are diesel friends don't get wind of this and pulling your van. LOL..
wont make the unit up and quit!!!!
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ticat900
Vernon BC
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Joined: 09/16/2006
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chucl66 wrote:Hi,
I had the same problem, on my 454. I changed all the same things mentioned.
I turned to be the mass air flow sensor. Replaced that and solved problem.
Chuck
NO mass air flow sensor on 1986 454 with a carburater!!!!!!!
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