magindat
06-26-2010, 03:45 PM
Darrin,
I'd like to take a moment for a public display of thanks. You took my call while you were at dinner. You listened to my CHEVY transmission problem and gave me some great food for thought. I thank you. Truly.
I ended up experimenting and reading and chased it down to a line pressure issue. It seems after 'warming up' I didn't have enough line pressure to hold 3rd and soon after was slipping in 1 and 2 as well. Why?
It's a mud truck. I dropped the pan and found me a bowl full of sludge. The sludge was having time to get into suspension and clog the filter, thus starving the pump and causing a line pressure drop. My daughter Jamie and I, cleaned out the pan, and installed a new filter. We also punched and tapped the pan to make it drain-able for maintenance. Filled her full of Castrol DEX III trans fluid and away we went.
It shifts crisply through all 4 gears and doesn't seem to have line pressure problems any more. Just for good measure, we drained the pan once more to get more if any remaining fine sludge out (because now it's in suspension from driving). Refilled with DEX III and some Lucas trans fluid.
I was afraid this trans fix would cost me more than I paid for the truck. Thanks to your willingness to help and a point in a good direction, the fix was under $50 and an afternoon with my daughter.
Darrin. You da man. Thank you.
Sincerely,
Rich
95 Tahoe 197,653 miles. 87K on motor. 65K on trans.
I'd like to take a moment for a public display of thanks. You took my call while you were at dinner. You listened to my CHEVY transmission problem and gave me some great food for thought. I thank you. Truly.
I ended up experimenting and reading and chased it down to a line pressure issue. It seems after 'warming up' I didn't have enough line pressure to hold 3rd and soon after was slipping in 1 and 2 as well. Why?
It's a mud truck. I dropped the pan and found me a bowl full of sludge. The sludge was having time to get into suspension and clog the filter, thus starving the pump and causing a line pressure drop. My daughter Jamie and I, cleaned out the pan, and installed a new filter. We also punched and tapped the pan to make it drain-able for maintenance. Filled her full of Castrol DEX III trans fluid and away we went.
It shifts crisply through all 4 gears and doesn't seem to have line pressure problems any more. Just for good measure, we drained the pan once more to get more if any remaining fine sludge out (because now it's in suspension from driving). Refilled with DEX III and some Lucas trans fluid.
I was afraid this trans fix would cost me more than I paid for the truck. Thanks to your willingness to help and a point in a good direction, the fix was under $50 and an afternoon with my daughter.
Darrin. You da man. Thank you.
Sincerely,
Rich
95 Tahoe 197,653 miles. 87K on motor. 65K on trans.