when i crank my car and being parked

1995 FORD THUNDERBIRD
230,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
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LUISHDZ11
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  • 6 POSTS
when i crank my car stays running but when i push the gas pedal when is park the RPM shows low power it raise up slow and if i push the gas pedal fast stars like drowning while is on park
Mar 25, 2014 at 7:57 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
scan for codes and check fuel pressure with agauge first autoparts rent it.
Mar 26, 2014 at 6:59 AM
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LUISHDZ11
  • MEMBER
  • 6 POSTS
the pressure is working fine could it be the catalytic coverter
Mar 26, 2014 at 10:24 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
do what I said in first reply if you don't scan for codes you may not know at all where to start aconverter won't do that. what is your fuel pressure exactly? if it's not 35-45 psi then it'snot ok
Mar 26, 2014 at 12:03 PM
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LUISHDZ11
  • MEMBER
  • 6 POSTS
the the fuel pressure is 30PSI and when i unplug the vacuum hose it raises up to 40PSI and when i plug the hose back to it it goes back to 30 is more like 29 PSI than 30 so what can i do next should i change the fuel pressure regulater
Mar 29, 2014 at 4:05 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
replace the pump it probably isn't making good flow rates.
Mar 29, 2014 at 5:44 AM
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