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1983 mercedes troubleshooting problem

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i am thinking about buying a 1983 mercedes diesel car,it runs/idles good,but is really slow getting up to speed,loses power top speed seems to be 40-50 mph.is this a bad injector pump?

Nov 19th, 2013
Hi,

It could be, try asking the seller if they would allow you to do a compression check on all cylinders. Take it to the shop and ask them if they can check the car for you. Also check for the transmission fluid. Rub the transmission fluid on a white tissue and make sure you don't see any metal flakes or any powdery like metal as residue. It has to be pure fluid on the tissue.

Buying used car is a little tricky, because you must always assumed that all sellers are selling you their problems they couldn't handle. Some sellers are desperate to sell their problematic cars to unsuspecting buyers.

The first thing you need to look for on any used vehicle is the oil and transmission fluid. Check the motor oil and make sure it is not thick and should look and feel like a motor oil. Some desperate sellers would mix gear box oil with motor oil to thicken the motor oil. The reason behind this hideous trick is quiet all noisy valves and to hide any cylinder blowby. The same trick applies to transmission.

Tainted motor oil with gear oil can make the car runs and idle nice and quiet, but lack of power. Once you change oil, the car will begin to smoke.
Nov 19th, 2013

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Nov 19th, 2013
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Nov 19th, 2013
May 23rd, 2017
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