1983 Toyota Celica GT-S - Message Forum (Sudden drop in RPM)

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Sudden drop in RPM

Posted By: Vic Soto

Posted On: July 14, 2002 at 12:57 am EDT

I been running my celica almost every day and a problem seem to comes and goes. Sometimes when I just slow down to down shift or plain stop a sudden drop of RPM occur more than normal . The Rpm will go almost to 300 and up again in a sequence of two. I suspect a problem with the coil or ignition system . Any insight will be appreciated.
And an update in the Power lock problem , is fix . The problem was the lock control relay, it was located under the steering wheel all the way to the firewall. It seems that the contacts became corroded, a good cleaning and re-adjustment of the contact springs did the trick. I suggest to try that first since the price for a new replacemment is around 125.00.

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Re: Sudden drop in RPM - Steven Benner 07/15/02 (0)

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Message:	Vic Soto wrote: > I been running my celica almos > t every day and a problem seem > to comes and goes. Sometimes > when I just slow down to down > shift or plain stop a sudden d > rop of RPM occur more than nor > mal . The Rpm will go almost t > o 300 and up again in a sequen > ce of two. I suspect a problem > with the coil or ignition sys > tem . Any insight will be appr > eciated. > And an update in the Power loc > k problem , is fix . The probl > em was the lock control relay > , it was located under the ste > ering wheel all the way to the > firewall. It seems that the c > ontacts became corroded, a goo > d cleaning and re-adjustment o > f the contact springs did the > trick. I suggest to try that f > irst since the price for a new > replacemment is around 125.00 > .
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