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So my recent purchase of a 2007 outlook has been a little bumpy. I have two issues right now I am not sure if they are related or not, but I have not found anyone with quite the same symptoms (believe me I looked) wanted to pose the question here.
When I bought the vehicle I did not have have this issue, took it in an had the struts and shocks replaced and the issue immediately appeared, but went away after a few days of driving and stayed away for 2 weeks and about 500 miles of driving but is still there.
So after I picked the car up from getting the struts repaired I immediately noticed that the stabilitrak light was on and the car would sort of slam when down shifting. In driving since then the stabilitrak off message comes and goes. Cruising down the highway or accelerating at gentle or hard the car shifts fine. If the stabilitrak light is OFF the car does not slam on the downshift. If the stabilitrak light is ON the car will slam when downshifting while decelerating. Its totally weird, I have had cars shift hard on the upshift, but never the downshift. When the stabilitrak message is displayed the car will slam downshift whether you are depressing the brake or not.
So let me say I believe I have the stretched timing chain / bad tensioner issue. My mechanic who changed the struts also replaced the valve covers and in doing so discovered some sludge and apparently disloged some sludge. When that happened the sludge must have some something to the tensioner and caused it to click for a while. We flushed and changed the oil a few times and 20 miles of driving later the clicking sound went away and has yet to return, but the check engine light and codes indicating timing issues has remained. so click went away, other symptoms of stretched timing chain stayed. engine now sounds fine.
I checked around and found that the MAP and brake position sensor are easy fixes for some stabilitrak issues so I have those parts on order and will try to swap them out as soon as they get in. I really want to resolve this stabilitrak issue before I put any money into the timing chain. Honestly I could live with the timing chain issue the way it is now, but the slamming downshift is pretty **** annoying.
I really don't think it is a transmission issue, and really I doubt it is the MAP or brake pedal position sensor either, but those parts were like $27 together so I figure hey why not try it.
When I bought the vehicle I did not have have this issue, took it in an had the struts and shocks replaced and the issue immediately appeared, but went away after a few days of driving and stayed away for 2 weeks and about 500 miles of driving but is still there.
So after I picked the car up from getting the struts repaired I immediately noticed that the stabilitrak light was on and the car would sort of slam when down shifting. In driving since then the stabilitrak off message comes and goes. Cruising down the highway or accelerating at gentle or hard the car shifts fine. If the stabilitrak light is OFF the car does not slam on the downshift. If the stabilitrak light is ON the car will slam when downshifting while decelerating. Its totally weird, I have had cars shift hard on the upshift, but never the downshift. When the stabilitrak message is displayed the car will slam downshift whether you are depressing the brake or not.
So let me say I believe I have the stretched timing chain / bad tensioner issue. My mechanic who changed the struts also replaced the valve covers and in doing so discovered some sludge and apparently disloged some sludge. When that happened the sludge must have some something to the tensioner and caused it to click for a while. We flushed and changed the oil a few times and 20 miles of driving later the clicking sound went away and has yet to return, but the check engine light and codes indicating timing issues has remained. so click went away, other symptoms of stretched timing chain stayed. engine now sounds fine.
I checked around and found that the MAP and brake position sensor are easy fixes for some stabilitrak issues so I have those parts on order and will try to swap them out as soon as they get in. I really want to resolve this stabilitrak issue before I put any money into the timing chain. Honestly I could live with the timing chain issue the way it is now, but the slamming downshift is pretty **** annoying.
I really don't think it is a transmission issue, and really I doubt it is the MAP or brake pedal position sensor either, but those parts were like $27 together so I figure hey why not try it.