The noise turned out to be caused by the EGR. The bolts had worked loose, and exhaust was pouring into the engine compartment, under acceleration.

Well, time for a blocking kit. I just need to get dimensions and I can get it made for free from stainless steel.

The barter system works great, I think. I trade computer repair work for metal shop work.

__________________
RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Gone and still missed...1982 w123 300D, 1991 w124 300D