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april10's avatar
april10
Explorer
Nov 26, 2013

starts fine, smooth idle 30secs, rough idle, then dies

We have a 1990 Southwind motorhome. Ran fine until recently. Now, it starts right up, runs good for about 30 sec., then the idle gets rough, the motor sounds like it's surging, and it dies. My husban...
Class A
doxiemom11's avatar
doxiemom11
Explorer II
Nov 26, 2013
Same symptoms on a GM SUV - it was a carboned up EGR valve. DH took it off, blew the carbon out and we repeated this about every 6 months. The valve worked like it should except got all carboned up. Is there an EGR valve on a coach?

When this happened, by the time it progressed to not running my check engine light was usually on.

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