1999 Mercury Sable misses

Tiny
LEWISJP
  • MEMBER
  • 1999 MERCURY SABLE
Engine Performance problem
1999 Mercury Sable 6 cyl Two Wheel Drive Automatic

my car has a bad miss like out of timing and I have changed plugs and checked all vacume hoses do have any other ideas of things to check like maybe the oxegen sensor or anything
Saturday, April 5th, 2008 AT 7:14 PM

4 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
When does it miss? At idle? Driving down the road? Possible vacuum leak?
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Saturday, April 5th, 2008 AT 8:06 PM
Tiny
LEWISJP
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  • 1 POST
It will miss at idle and has very slow pickup when driving
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Sunday, April 6th, 2008 AT 7:32 AM
Tiny
MASTERTECHTIM
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If the check engine light comes on then go to autozone and have it scanned and get back to me. They do it for free. Did you install new plug wires?
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Sunday, April 6th, 2008 AT 5:53 PM
Tiny
BRAVESTAR1
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I can attest to this very problem.
The Spark Plug wires are junk. Usually they rarely get replaced, and before you spend a fortune on new gaskets and other things, spend $40 on some new Spark Plug Wires.

What's interesting about this problem is it will sometimes cause O2 sensors to die. That is a pain in the A$$ cause the downstream ones are terrible to access without the proper tools, and even with those tools their annoyingly hard, cause there are 4 of them, and it's hard to access them.
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Saturday, April 19th, 2008 AT 3:52 PM

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