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1987 Mercury Marquis car stalls up or down hills

Tiny
RICK46342
  • MEMBER
  • 1987 MERCURY MARQUIS
Engine Performance problem
1987 Mercury Marquis 86632 miles

This car stalls going up or down a hill, but seems to run good at other times. Have changed alot of things, What do you think it could be. We need help. Thanks
Monday, March 9th, 2009 AT 5:34 PM

4 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Hi Rick need more info to be able to help you here
does it stall while driving it just dies on you
or stall when stopped?
Does it start up right away?
Lets start by checking it for tune up
and check idle air control valve
let me know
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Monday, March 9th, 2009 AT 6:39 PM
Tiny
RICK46342
  • MEMBER
  • 4 POSTS
It has had a tune up, plugs, wires for plugs, cleaned injectors, replaced alternator, battery, ignition coil. It stalls going upor down hills and starts right back up. Idles kind of rough sometimes to. It's my Daughter's car. Thanks
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Monday, March 9th, 2009 AT 6:53 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
I would suggest doing a fuel pressure and volume test
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Monday, March 9th, 2009 AT 8:11 PM
Tiny
RICK46342
  • MEMBER
  • 4 POSTS
Thanks, But my son in Law did that and also took the gas tank out and cleaned it to make sure nothing was blocking the fuel. He has followed the repair guide and still has this problem.

Thanks Rick
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Monday, March 9th, 2009 AT 9:07 PM

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