RPMs fluctuating at startup '95 Legacy Outback 2.2L

Aug 17, 2010 6 Replies
F

I just replaced the starter on my 95 Legacy Outback 2.2L. The solenoid on the old one was on its way out (requiring a stiff tap for startup). Since then the engine starts fine, but immediately after starting the rpms bounce a couple times before leveling out. This only seems to occur at startup and not when I'm idling at a light, etc.



I did disconnect the battery to replace the starter, but I don't recall this happening after disconnecting the battery on previous occasions.



Any ideas on the cause or things I might check?



Thanks.


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B

Any vacuum lines get bumped during the replacement process?

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1

How long has this been occuring? Is the check engine light on?

Just wondering if the ECU is trying to re-learn some adjustments.

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F

I don't think I ran into any vacuum lines; but I'll go over them again.

This has been going on for about 4 days, during which, I've probably put around 75 miles on it at varying speeds.

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1

Hmmm, was there a ground wire that could have been compromised somewhere? Definitely double-check the integrity of battery and other cables and their connections.

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1

You could always 'test' the theory by clearing the ECU and see if the behavior returns. It might be nice to try to get a 'freeze frame' or some other readings from the ECU ,just to see if it has had to make radical fuel trim adjustments or ???

anyway, good chance it's OK for a while now.

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