1994 Chrysler Concorde Poor Ingition Performance

1994 CHRYSLER CONCORDE
120,000 MILES • 6 CYL • 2WD • AUTOMATIC
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STEVEN1957
  • MEMBER
  • 2 POSTS
My car started to run rich, hard to start, run rough at highway speed very rich smell at the exhaust and poor fuel economy.
Now the problems are much worse.
I've replaced the injectors and coil pack, no help.
Suggestions?

It has the 3.3 L
Feb 9, 2009 at 1:28 PM
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ZACKMAN
  • ✓Experienced Mechanic
  • 4,202 POSTS
I believe your fuel pressure regulator is faulty. But before you replace that, test your fuel pressure at the rail.
Feb 9, 2009 at 3:56 PM
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STEVEN1957
  • MEMBER
  • 2 POSTS
Fuel pressure was checked: 50 psi at idle, 48 psi when reved up.
Feb 10, 2009 at 1:25 PM
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ZACKMAN
  • ✓Experienced Mechanic
  • 4,202 POSTS
***I still believe it is your pressure regulator**** Truncated diagnostic procedure...


https://images.2carpros.com/forum/automotive_pictures/55316_94concordefpress1_1.jpg


https://images.2carpros.com/forum/automotive_pictures/55316_94concordefpress2_1.jpg

Feb 10, 2009 at 1:57 PM
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