Now, guys, I've always known this was a slow car. But for the last
month, my 81 240D with about 160,000 won't go faster than 74 mph. At
that speed, she seems to be pushing against a wall.
What should I check? Ive replaced the airfilter. Winterfuel has never
done this to me. Should I replace the fuel filter? It's less than 15,000
miles old. Also, I have a new clutch within the last 2 weeks. Would an
improperly installed clutch cause to slip at high RPMs? My mechanic says
injection pump but I suspect he just wants to throw parts at the problem.