volodyalysak Posted February 9, 2013 Share Posted February 9, 2013 Hi guys, i have 05 legacy gt AT with 146K miles, but have new shortblock with 2000 miles on it. While i'm going down step hill, i usually try to downshift to 4th and let engine slow down so i don't have to use brakes(i live in High Rockies). For some reason when i downshift in manual mode my speed will not decrease, instead rpms will climb up and i have to upshift and use brakes. Link to comment Share on other sites More sharing options...
NWSPECB Posted February 9, 2013 Share Posted February 9, 2013 ...Just use your brakes. Those are cheaper to replace than an engine when they wear out. Link to comment Share on other sites More sharing options...
archer1.8 Posted February 9, 2013 Share Posted February 9, 2013 I kind of think its normal. I feel like when you down shift on these cars in a 5eat the car matches the revs as best as possible so you dont get that engine slowing/braking like you do in a 5spd Link to comment Share on other sites More sharing options...
DeltaNu1142 Posted February 9, 2013 Share Posted February 9, 2013 Slipper clutch? Tits mcgee Link to comment Share on other sites More sharing options...
volodyalysak Posted February 9, 2013 Author Share Posted February 9, 2013 its just so easy to kill brakes in the mountains. I guess i just have to use them more Link to comment Share on other sites More sharing options...
ehsnils Posted February 9, 2013 Share Posted February 9, 2013 First thought is to do a compression test to make sure that it's ok (not that there should be any big problems there with an almost new block). And double-check the cam timing too. But as noted above - that the car rev-matches when downshifting, so the braking may not be immediate. What about if you downshift to 3rd? But a turbo engine has a lower compression ratio, so engine braking isn't as effective as with a naturally aspirated engine. Don't worry about engine wear when engine braking. It's a lot less wear on the engine doing that than going uphill. Link to comment Share on other sites More sharing options...
rob-2 Posted February 9, 2013 Share Posted February 9, 2013 I can engine brake on my 5eat. Yes, I agree, I've roasted a set of rotors and pads in the mountains. Too much heat and not big enough rotors. Link to comment Share on other sites More sharing options...
volodyalysak Posted February 9, 2013 Author Share Posted February 9, 2013 Coasting clutch ?? How easy/hard to replace it ?? Link to comment Share on other sites More sharing options...
volodyalysak Posted February 9, 2013 Author Share Posted February 9, 2013 no, can't do it now. Car still shifts good, thats the only thing that bother me really Link to comment Share on other sites More sharing options...
ehsnils Posted February 10, 2013 Share Posted February 10, 2013 Shouldn't that cause a code to be set if it's not working correctly? Link to comment Share on other sites More sharing options...
Mega Users paintpollz Posted February 10, 2013 Mega Users Share Posted February 10, 2013 I know where the op is coming from I have a buddy that has them same issue with blowing thru pads/ rotors in the hills. "Remember Danny - Two wrongs don't make a right but three rights make a left." Link to comment Share on other sites More sharing options...
rob-2 Posted February 10, 2013 Share Posted February 10, 2013 the 5eat has a coasting clutch for engine braking, perhaps its toast What are you referring to? An auto tranny has a tq converter. Link to comment Share on other sites More sharing options...
volodyalysak Posted February 10, 2013 Author Share Posted February 10, 2013 Other possible issues ? Fluid low etc ?? I will be working on my car tonight a bit and want to know what to check. Link to comment Share on other sites More sharing options...
ehsnils Posted February 11, 2013 Share Posted February 11, 2013 The coasting clutch - or lock-up is bypassing the torque converter, and when driving you should be able to notice if it engages or not. Best is a flat straight piece of road. Accelerate slowly up to 45 to 55mph, and pay attention to every gear shift. If you have a final shift where the change is just about 100rpm it should work as intended. Link to comment Share on other sites More sharing options...
apexi Posted February 11, 2013 Share Posted February 11, 2013 Random stuff from the service manual for a 2009, not sure how helpful it is but i'll throw it out there. Link to comment Share on other sites More sharing options...
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