MERCEDES 300SD HIGH-PITCHED HORN SOUND WHEN IN SECOND GEAR
1979 Mercedes Benz 190d • 5 cylinder 2WD Automatic • 103,000 miles
1979 Mercedes 300SD Turbo Diesel mileage: 103,000. I've never owned a diesel car before, so I'm not sure what this could be.The other cold morning I started the car and I let it run for a minute then drove. As soon as it shifted into second gear, it started screaming like a high-pitched horn sound coming through what seemed like the vents into the front of the car. When I slow down, the noise lowers in tone until I'm in first gear when it stops altogether. I wasn't bold enough to try a higher speed. I'm afraid to take it to a mechanic without having some idea first, because I don't know any around where I live. (I just bought the car a few months ago.)
Without listening to the high-pitched noise, we can give you some suggestions of what to look for.First, check the vacuum pump and also the vacuum hoses.Next, check for loose or faulty fan belts.
A friend - ex really, now - put about 10 gal of diesel in my truck when he ran out of gas. Then, ...
10 answers • 1984 Ford F-150 • 200,000 miles
Engine Mechanical problem 2002 Nissan Altima Two Wheel Drive Manual 70,006 miles someone put 4...
1 answer • 2002 Nissan Altima
Engine Mechanical problem 2001 Volkswagen TDI 4 cyl Two Wheel Drive Automatic 158000 miles i ...
2 answers • 2001 Volkswagen TDI