QuestionQUESTION: i just changed the engine in my '07 Hyundai entourage, because my wife forgot to change the oil for many month's, so the engine sized. after changing the engine it started up beautifully but when we go to shift to drive or reverse the car will not move. we took the engine back out checked everything put it back in and checked and triple checked every connection and hose. then we stared it up again no problem the engine runs but still when we go to shift to drive or reverse it will not move. please we use this car to get my 2 year old daughter around and help my disabled brother-in-law. any help will be appreciated, thanks.
ANSWER: You may have damaged the transmission oil pump during the engine replacement. If the torque converter is not fully engaged in the transmission pump-- it may have slid out without your noticing while the engine was not attached to the transmission-- the oil pump in the transmission will break when then engine is started.
As long as the engine starts and runs, and you know that the flex plate is securely bolted to the engine and torque converter, then it's a reasonable conclusion that the problem is in the transmission. If the fluid is at the proper level and the transmission operated properly prior to the engine seizing, then we're near 100% that you've broken the transmission oil pump.
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QUESTION: so what can i do to fix this problem. thanks again.
ANSWER: Presuming that we know the flex plate is intact and securely attached to the torque converter and crankshaft, you'll need to either remove the engine or transmission, and then remove the front pump from the transmission to see whether it is broken. If so, you'll need to replace the pump.
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QUESTION: where can i purchase that part if it is broken. also what could it be if the pump is not broken just in case. 6
AnswerYou can purchase a new front pump at the dealer, but I expect it will be quite pricey. I don't know if they're available aftermarket. If you do end up shopping the front pump at the dealer, also check on the pricing on a remanufactured transmission. The price may well be comparable.
Additional potential problems:
-- low transmission fluid
-- axle shaft not fully installed in transmission
-- broken flex plate
-- flex plate not attached to crankshaft
-- flex plate not attached to torque converter
-- shift cable broken, damaged, or improperly adjusted or attached
-- internal transmission problem.
Presuming the transmission was working properly prior to the engine replacement, it's extremely unlikely you have an internal transmission problem.
