1991 Mercury Capri Runs poorly - quits when gas tank goes b

1991 MERCURY CAPRI
60,000 MILES • 4 CYL • FWD • MANUAL
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RWRNORMAN
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  • 1 POST
Engine cut out when gas tank ibelow 1/2 full. Can restart but runs very very bad - just barely get to gas station and fiull it up and it runs ok other than I thought it should be much smoother and have better pick up than it does. No performance very doggie.

Have replaced fuel filter, cap, rotor, wires and plugs. Plugs are NGK Irridium the rest is what they said was OEM.

HELP PLEASE!!!!!!

Rich
Jul 13, 2008 at 11:59 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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DOCFIXIT
  • CAR REPAIR CONTRIBUTOR
  • 18,828 POSTS
Check fuel pressure and delivery rate. If not48 to 50 psi at injectors you need pump. Need to drop tank to R&R pump.
Jul 13, 2008 at 12:11 PM
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91XR2
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  • 7 POSTS
Also check what's in the other half of the tank and make sure it's gasoline. Gas will float on water.
Nov 28, 2008 at 11:53 PM