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Old 06-14-2005, 05:23 PM   #1
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Hi Gang
Been having trouble with my whc,after I' ve driven about 150 miles. Had it in the shop several times, found a loose plug on one visit that at least keeps the dash from resetting. They also checked the gas pressure with the engine cold and it held a steady 60psi.
I finnally drove the unit 75 miles and turned around and drove back 75 miles and a gas pressure check at idle was 60psi but under load it drops to 20psi. Waiting for new pump to be installed.
Hope this info may help someone else.
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Old 06-14-2005, 05:23 PM   #2
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Hi Gang
Been having trouble with my whc,after I' ve driven about 150 miles. Had it in the shop several times, found a loose plug on one visit that at least keeps the dash from resetting. They also checked the gas pressure with the engine cold and it held a steady 60psi.
I finnally drove the unit 75 miles and turned around and drove back 75 miles and a gas pressure check at idle was 60psi but under load it drops to 20psi. Waiting for new pump to be installed.
Hope this info may help someone else.
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Old 06-15-2005, 02:28 AM   #3
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Thanks for the info Jim! What year is your chassis and is yours with the 8.1 engine? Keep us posted on the effects after the pump is changed out.
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Old 06-15-2005, 09:47 AM   #4
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by rvcraftsman:
... Been having trouble with my whc, after I've driven about 150 miles... </div></BLOCKQUOTE>

A lot of us with the 8.1L engine have had trouble with this and if you do a search you should be able to find a lot of past comments.

Generally, if it happens during a rainstorm (usually a severe downpour) water may be getting into the air intake. There's a fix for this. Do a search. Maybe somebody else can recall and report what it is, too.

Some have reported that their units came with a dirty fuel tank and their fuel filters became clogged to the point where the engine stalls. Obviously, changing the fuel filter (maybe more than once) is the answer.

Lastly, many report that the spark plug wires are either badly routed around the engine or poorly protected from manifold heat and burn through. There's a fix for this, too. Do a search. Maybe somebody can tell you what it is.

Hope it's all this simple.
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Old 06-22-2005, 03:39 PM   #5
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2005 unit with 8.1
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Old 06-23-2005, 07:24 AM   #6
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Check the fuel filter too - mine arrived from the National RV factory with a fuel filter loaded with crap and it caused power loss problems intermittently until a tech noticed it while working another problem. The filter is hard to find and doesn't get checked as often as it should.

Don't know whether the crap in the filter came from Workhorse, National Rv or the delivery driver fueling at some el-cheapo place with cruddy tanks.
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Old 07-06-2005, 08:18 AM   #7
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I just bought a Pace Arrow (Workhorse W-24 , 8.1) last week in Texas and it drove fine for the first 600 miles going back home to Virginia and then half way there I lose most of the power when I press the pedal down. I have about 10 % of the pedal to press down before the power loss occurs. This almost sounds like some of the problems posted here. If I turn the engine off and back on it seems to be ok for a few miles and then does it again. It isn't producing any "check engine lights". Does this sound like a fuel filter issue to you guys?

Thanks for the info....
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Old 06-19-2006, 06:13 PM   #8
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I have had the same problem for the past two years. My 2003 Fleetwood Southwind has stalled while driving at freeway speeds and goes up steep grades at about five-ten miles per hour. I've had the fuel tank vented and a fuel/air sensor replaced. Two weekends ago (June 2006) the coach stalled again in hot weather on the way back from Lake Havasu. When my wife removed the gas cap, the engine started and we continued back to Riverside without further trouble. I've since replaced the gas cap and completed a round trip of over 600 miles in 100+ weather without trouble. It's unbelievable that the faulty gas cap was not discovered by the dealer mechanics! My milage is now less than 5mpg since the problem began, down from 8mpg. I'm working on the solution to this now! I'm looking for a competant Workhorse mechanic in, or near Riversida CA.
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Old 06-19-2006, 07:13 PM   #9
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Redlands WH service is tops.
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Old 06-20-2006, 02:44 AM   #10
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INIT 6 and Bob W. - - Welcome abaord, glad to see you guys found us and we appreciate having you here. Please come back to vist us and feel free to post often. We are all looking forward to hearing what you have to say about your Workhorse.

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