Car is hesitant at take off, almost stalls @idle, takes off like a bullet @times. Replaced motor was 4.6 HP interceptor kept top. Only bottom end was Replaced with grand marque motor.any ideas.

5

Asked by Aug 05, 2015 at 03:40 PM about the 2003 Ford Crown Victoria Police Interceptor

Question type: Maintenance & Repair

2003 Crown Vic Interceptor
Sorry for two posts!

7 Answers

17,790

Check air filter and clean throttle clean or replace Idle Air Control valve or mass air flow sensor depending on which one is on your vehicle replace fuel filter if have not done so in a while add fuel injector cleaner to gas tank and use the middle grade or high test gas to help clean out the gum and carbon build up.

1 out of 1 people think this is helpful.
Best Answer
5

Thank you

5

Cleaned throttle body and replaced the idle air controller. Now there is a noise like a humming coming from the throttle body. Any suggestions?

17,790

Did you put the idle air control back on correctly sounds like its sucking in to much air. Did you clean the surface off good and install a new gasket.

5

Yes we did all of that.

17,790

Sorry do not no what else to tell you but to go over what you had done and make sure everything was put back together correctly. It has to have something to do with what was done to vehicle since it was not doing it before.

maybe you have a exhaust leak or could be misfiring do to you not having a tune up

Your Answer

Add photo

Related Questions

Crown Victoria

Looking for a Used Crown Victoria in your area?

CarGurus has 982 nationwide Crown Victoria listings starting at $2,990.

ZIP:

Search Ford Crown Victoria Questions

Ford Crown Victoria Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 1,710
#2 Tom Demyan
Tom Demyan
Reputation 890
#3 FordNut
FordNut
Reputation 850
View All

Related Models For Sale

Used Mercury Grand Marquis
23 Great Deals out of 1,830 listings starting at $500
Used Lincoln Town Car
26 Great Deals out of 1,827 listings starting at $1,695
Used Chevrolet Impala
590 Great Deals out of 29,271 listings starting at $1,300
Used Ford Mustang
309 Great Deals out of 45,692 listings starting at $2,200
Used Ford Taurus
192 Great Deals out of 19,383 listings starting at $500
Used Ford F-150
2,425 Great Deals out of 210,996 listings starting at $895
Used Ford Explorer
776 Great Deals out of 74,857 listings starting at $750
Used Chevrolet Tahoe
634 Great Deals out of 27,862 listings starting at $600
Used Honda Accord
718 Great Deals out of 82,593 listings starting at $500
Used Chevrolet Camaro
142 Great Deals out of 35,643 listings starting at $1,995
Used Mercury Marauder
29 listings starting at $10,000