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  Jumpy tach and engine surge at 70 mph

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Jumpy tach and engine surge at 70 mph by js
Started on: 11-14-2003 10:27 PM
Replies: 1
Last post by: avengador1 on 11-15-2003 08:48 AM
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Report this Post11-14-2003 10:27 PM Click Here to See the Profile for jsClick Here to Email jsSend a Private Message to jsDirect Link to This Post
I am having an occaissonal jumpy tach reading and at the same time a slight engine surge at about 70 mpm freeway speed in my '86 2.8L. Radio noise too. I remember having this a few years ago and I thought changing the spark plug wires fixed it. I changed them yesterday and I still get the same behavior. I thought it might be the tach filter, but would that affect engine performance?
How can I fix this?

Thanks in advance

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Report this Post11-15-2003 08:48 AM Click Here to See the Profile for avengador1Click Here to Email avengador1Send a Private Message to avengador1Direct Link to This Post
Going by your clues of radio noise and engine surge, I would suspect some sort of high voltage leak. Check your spark plug wires at night and see if you get a light show, especially near the spark plug boots. If you do see the sparks flying it's time for new wires.
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