I just bought a 1984 190E with 160,000 miles on it. New plugs, and rotor were just put on. The car will constantly chug while driving in all gears, more noticed at higher speeds. 65mph is about the fastest it will go. When the car is warm its the worst. Where would the best place to start working on it. Compression test numbers #1 135 psi, #2 130 psi, #3 135 psi, #4 125 psi
On a warm engine also. It also doesn't idle the smoothest. 145 miles driven on 3/4 tank of fuel, kind of high I'm thinking

Any input would be appreciated

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Dave

1985 190D 2.2 auto--gone
1975 240D 4-speed--storage
1985 500SEL--daily driver
1985 300TD--bad rust, soon to part out...
1982 300SD--waiting on engine from RD
1984 190E--storage
1996 Dodge 2500 Cummins--daily driver