Compression Ignition Addict
Join Date: Aug 2007
Location: New Martinsville, West Virginia
Thanked 54 Times in 52 Posts
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Re: wastegate closes while driving
Not wastegate. It is the Exhaust Back Pressure Valve EBPV doing its job... perhaps not properly but none the less... my 2000 dually and Excursion do not activate like that but my early '99 does make hiss while driving at times.... part of the early/late diffrences.
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'99 E350 DRW Stahl 11' util box van, 7.3 PSD, stock. 138k SOLD
'00 F350 extcab, 9' utility bed, dually 228k
E'99 F250 extcab, S/Bed 211k. Sidelined due to motor issues.
'00 Excursion Limited, 7.3PSD 294k
'84 Chevy K-30, 6.2L TD, woods/trail beater. 141k