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#1
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Downshifting problems
I've just developed a downshifting problem. I recently had Timing belts etc. changed which included spark plugs etc. Since then whenever I'm in cruise control and come to a slight grade my tranny slips into 3rd. I know it's 3rd because if I downshift into 3 the RPMs stay the same. When I looked in the manual I noticed most of the sensors connect to the transmission. It also mentions a vacuum line. Could a broken/leaking vacuum line or a bad sensor cause this problem, or is it just time to start looking for a transmission shop?
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#2
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How "slight" of a grade are we talking about?
Slipping to 3rd would make sense. If the vehicle can not make it up the grade at the current RPM, it will down**** out of overdrive (4th) to 3rd, 2nd or even 1st if necessary. That is how cruise works, hence it let's you cruise.
Maybe I'm not understanding the question. Ryan
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92 LS-L Claret / Black UR Underdrive Pulley, Bosche Platinum +4 Plugs, K&N Cone Filter http://www.ryanmacdonald.com http://www.digitalvertigo.net http://www.open-innovations.com |
#3
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downshift woes
downshifts occur in areas I didn't downshift before the work mentioned in my previous message. Even some slight grades cause a downshift where none was expected or encountered before.
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#4
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Hmm I understand....
Well from what I know about cruise (which believe me isn't much), yes it works off a vacuum line. I believe the more vacuum, the more its ability to stay at RPM. However to much load and the vacuum decreases and thus it shifts. Someone PLEASE correct me if I'm wrong about this!
If this is the case, it may be possibly that you have a leaky hose. A loss in vacuum from the leak would cause this phenomenon. I honestly have no idea where this line is, but it shouldn't be to hard to check out. Good luck, Ryan
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92 LS-L Claret / Black UR Underdrive Pulley, Bosche Platinum +4 Plugs, K&N Cone Filter http://www.ryanmacdonald.com http://www.digitalvertigo.net http://www.open-innovations.com |
#5
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Re: Downshifting problems
Quote:
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Randy Johnson 3rd Registered Member 02-21-2001 First Member to Reach 10,000 Posts First to arrive at the very first Reading Meet Subaru Ambassador 1992 SVX PPG Pace Car Replica 110+k 1993 White Impreza L 240+K miles 2001 Legacy Outback Limited Sedan 250+K miles 2013 Deep Indigo Pearl Legacy 3.6R 49+K miles "Reading is my favorite Holiday" Mike Davis -- at Reading VI |
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