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Author Topic: a couple questions.  (Read 502 times)


  • Newbie
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  • Posts: 1
    • 1991 Mercury Capri XR2
a couple questions.
« on: March 30, 2016, 09:10:40 PM »

Thanks for accepting me to your site.  I have had a '91 xr2 convertible for about 7 years.  Love driving it.  I have a couple questions tho.  Ever since I've owned the car I've had a check engine light when I'm going down the road at a steady speed.  i learned thru this site how to pull codes and it's a 17.  I changed the 02 sensor when I first got the car because I learned the manifold was cracked.  I have used liquid glass to fix the crack but haven't pulled the manifold to fix it right.  It does run rich. The plugs are black and the exhaust tip is black.  I get approx 20 mph average.  Any suggestions?  Second question:  How much play in rear wheel bearings?  Mine have about 1/8" movement when I jack up the car.  Is that too much?  I have a vibration at 70-75 mph, is that movement causing that?  Thanks for any help.