Good Sam Club Open Roads Forum: 1991 P30 454 intermittent surging, power loss
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Open Roads Forum  >  Class A Motorhomes  >  Maintenance Issues & Tips

 > 1991 P30 454 intermittent surging, power loss

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vacuumbed

Salt Lake City, Utah

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Joined: 03/03/2006

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Posted: 08/24/22 09:37am Link  |  Quote  |  Print  |  Notify Moderator

I really appreciate everyone’s help, but for right now my time has run out for troubleshooting this. I have to leave with it on a trip tonight for a festival, and I will be gone until after Labor Day. I will have to resume troubleshooting when I get back in September.

When I get back, I will learn how to pull the codes and post them here.

Thank you again for everyone that has contributed, and try to help me.

Stim

NE Florida

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Joined: 05/23/2007

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Posted: 08/24/22 09:41am Link  |  Quote  |  Print  |  Notify Moderator

I don't think it has been mentioned but, next time it is warmed up and acting up try removing the gas cap and listen for a vacuum sound.
That would point to an emissions problem not venting.
Another wild shot, possible muffler partially blocked.
If it was a Ford you would be spending money on suspension corrections.

enblethen

Moses Lake, WA

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Posted: 08/24/22 10:54am Link  |  Quote  |  Print  |  Notify Moderator

It could be a vacuum leak. Cracked hose or a bad emission valve. Check the hose going to the EGR solenoid and the solenoid to the EGR valve. Possible bad or stuck EGR valve


Bud
USAF Retired
Pace Arrow

2003 Chev Ice Road Tracker


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