’79 240D intermittently loses power. I can drive at 65 mph and the car will start to run rough, lose speed down to about 50 mph (max speed) and then regain power. It loses power for less than one minute before it regains speed again. Does this indicate anything specific to you?

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Sunny PA
79 240D
83 300SD

Loss of fuel flow. Try changing out the fuel filters under the hood first. Make sure you fill the spin on filter up with fuel or fuel additive prior to installing it. If this does not help check the fuel tank vent located under the car in front of the drivers side rear wheel well and if that does not do the trick clean the fuel tank screen. Have you just recently gone to burning biod?

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Jim

Thanks for the tip. I'll check it out. No biod.

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Sunny PA
79 240D
83 300SD

Yep I agree. Make sure the fuel flow is fine before moving to other causes.

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1981 300D 147k
1998 VW Jetta Tdi 320k
2001 Dodge Ram 2500 141k
1979 300D 234k (sold)
1984 300D "Astor" 262k(sold)
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