Quote:
Originally Posted by 87tdwagen
You could have an exhaust restriction. Dont remember if the 91 had a catalyst or not, but that can and does clog with soot over time, possibly the muffler as well, tho less likely. I had that happen on a 87 300D. Replacement with a straight pipe cured it. A EGT gauge helps tremendously in diagnosing this as the temps will rise well above normal when there are issues with combustion or exhaust restrictions.
|
The 91 does not have a cat. Since I need to replace the muffler anyway, maybe I should just do that and see where things stand.
Resonator was eliminated some time ago....so with a new muffler things should be nice and clean.
__________________
14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 160k miles
06 E320 CDI "Rutherford", Black on Tan, 180k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete
19 Honda CR-V EX 79k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife
|