1990 Dodge Ram Knocking/ Fluid Loss

  • 1990 DODGE RAM
Transmission problem
1990 Dodge Ram V8 Four Wheel Drive Automatic Unknow miles

I recently purchased a 1990 Dodge Ram W250 with unknown mileage. After changing the oil and topping off all fluids I drove it 20 miles with no problems. On the return trip however, it suddenly began to knock and rattle. Once home I left it running while atempting to locate the source of the noise. Upon looking under the truck I found fluid leaking to the ground and smoke coming from under the hood. I turned the truck off right away and opened the hood to find fluid sprayed on everything. The smoke was coming from where it hit the hot motor. I checked the oil (the leaking fluid was brown), but the oil was still full. I also checked the transmission fluid and found it almost empty. Any idea what might cause sudden loss of transmission fluid, a rough idle, and lots of knocking? Thanks!
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have the same problem?
Friday, September 3rd, 2010 AT 8:03 PM

1 Reply

Hi there,

Thank you for the donation.

I would b checking the transmission oil cooler lines as one may be leaking and spraying oil onto the engine, this may also be shorting out the ignition causing the rough idle, as for the knocking, I would first attend to the transmission leak first and see if that helps with the noise, if not I would be checking the engine oil pressure next.

Mark (mhpautos)
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Sunday, September 5th, 2010 AT 9:05 AM

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