My rear main seal is leaking and now the truck is knocking, what is wrong with it?


Asked by Aug 11, 2012 at 08:59 AM about the 1997 Dodge Ram 1500

Question type: Maintenance & Repair

I know the oil is low cuz there's a puddle of oil in the
driveway. And when I push on the gas that's when it
starts knocking.

3 Answers


you answered you own question. your rear main seal is leaking, you have low oil, and now your engine knocks. congratulations, you more than likely cooked the engine.

1 of 1 people found this helpful.

You may have damaged your engine by letting it get too low on oil. You have to pull the transmission to replace the rear main. Should be $500 or less at a repair shop. Fill it with oil and see if it still knocks. You may have life left on the engine. If it knocks when the oil is full you have spun one or more rod bearings and need and engine overall or a used engine put in.

How would I know if I need a rear end

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