I have 91 ford mustang lx 2.3 when it idles it goes down to 500 rpm we have replaced the alternator, battery, fuel filter, fuel pump... We also cleaned out the IAC and the throttle body...

Asked by Kendra Dec 21, 2014 at 12:36 AM about the 1991 Ford Mustang LX 5.0 Hatchback RWD

Question type: Maintenance & Repair

For a little bit it kept on dieing after a min

2,080

Tamisha answered 10 years ago

Clean the fuel injectors check for vacuum leaks and restricted exhaust

Mark helpful

ruger9 answered 10 years ago

Ck throttle body for crap around the throttle plate,this will restrict air flow at idle, thus low RPM

Mark helpful

Kendra answered 10 years ago

I just cleaned both the throttle body and the idle air control valve

Mark helpful

Your Answer:

I have 91 ford mustang lx 2.3 when it idles it goes down to 500 rpm we have replaced the alternator, battery, fuel filter, fuel pump... We also cleaned out the IAC and the throttle body... 3 Answers

For a little bit it kept on dieing after a min

1991 Ford Mustang LX 5.0 Hatchback RWD

-

Maintenance & Repair
I have a1995 ford mustang GT 5.0. recently I was reving my engine, and just shortly after my car started bucking and hesitating. Almost dieing at a complete stop. If the stop was long enogh it would stop. I have changed the EGR valve, the IAC valve and the fuel regulator. Also I have replaced all of the hoses that go to the upper intake and the upper intake gasket. I just cleaned the MAF sensor with MAF sensor spray cleaner and now the the check enging light is on and it hesitates when I drive. but the rpms are steady as to where before they were all over the band. any Ideas 4 Answers

I have a1995 ford mustang GT 5.0. recently I was reving my engine, and just shortly after my car started bucking and hesitating. Almost dieing at a complete stop. If the stop was long enogh it would...

1994 Ford Mustang GT Coupe RWD

-

Maintenance & Repair
I have a 2001 3.8 L mustang, it sat for about a year tried to start fuel pump out, ran great previously. Replaced fuel pump motor only, cleaned tank changed fuel filter and it ran great for about 60 miles. All of a sudden running rough misfires, knocks rough idle. Replaced all plugs, coil pack, EGR and 2 injectors (3-4)which showed misfire on diagnostic. First start idles great feels smooth after 15 minutes same conditions occur, sooner when driving. What should I test the fuel pressure again? 2 Answers

Car sat for a year had to replace fuel pump and filter ran great as it did previously. After 60 miles started to idle very rough, misfire, knocks bogs down when giving gas had to feather gas pedal t...

2001 Ford Mustang Convertible RWD

-

Maintenance & Repair
my 1988 mustang gt convertible usually runs great but sometimes it idles up and down and will even die. the problem stops when i accelerate but will continue at cruising speed. sometimes it does not happen for days, then when it happens it can last for a few seconds up to a day. i have replaced the cap, rotor, plugs, wires, fuel filter and egr valve. it feels like a vacuum issue, but i do not think a vacuum issue would come and go like this. i am lost! please help 3 Answers

my 1988 mustang gt convertible usually runs great but sometimes it idles up and down and will even die. the problem stops when i accelerate but will continue at cruising speed. sometimes it does not...

1988 Ford Mustang GT Convertible RWD

-

Maintenance & Repair
I have recently replaced the engine in my Salnee Mustang 2001and the fuel pump and the manifold intake no I will not start at all what should we do 5 Answers

Well the reason why we like replaced the engine is because it blew up and then it wasn't getting gas to the pump so we replaced the pump then we took out the old intake and put a brand-new intake in...

2001 Ford Mustang Premium Coupe RWD

-

Maintenance & Repair

Looking for a Used Mustang in your area?

CarGurus has 20,775 nationwide Mustang listings starting at $2,400.

Own this car?

Share your experience with others.

1991 Ford Mustang

Write a car review

Review another car

Used Chevrolet Camaro

632 Great Deals out of 8,690 listings starting at $2,800

Used Chevrolet Corvette

773 Great Deals out of 13,958 listings starting at $4,995

Used Ford F-150

6,689 Great Deals out of 173,754 listings starting at $1,995

Used BMW 3 Series

1,004 Great Deals out of 14,351 listings starting at $1,200

Used BMW M3

71 Great Deals out of 1,586 listings starting at $11,999

Used Honda Civic

1,428 Great Deals out of 28,785 listings starting at $995

Used Toyota Supra

39 Great Deals out of 518 listings starting at $33,008

Used Toyota Camry

2,260 Great Deals out of 44,918 listings starting at $975

2024 Ford Mustang For Sale

93 Great Deals out of 6,301 listings starting at $24,395

2023 Ford Mustang For Sale

57 Great Deals out of 607 listings starting at $21,199

2022 Ford Mustang For Sale

97 Great Deals out of 1,200 listings starting at $14,652

2021 Ford Mustang For Sale

73 Great Deals out of 951 listings starting at $15,900

2020 Ford Mustang For Sale

96 Great Deals out of 1,002 listings starting at $14,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.

I have 91 ford mustang lx 2.3 when it idles it goes down to 500 rpm we have replaced the alternator, battery, fuel filter, fuel pump... We also cleaned out the IAC and the throttle body...

3 Answers

Your Answer:

Looking for a Used Mustang in your area?

Own this car?

Share your experience with others.

Shortcuts

Search Ford Mustang Questions

CarGurus Experts

Know more, shop wisely

Related Models For Sale

Used Cars for Sale

I have 91 ford mustang lx 2.3 when it idles it goes down to 500 rpm we have replaced the alternator, battery, fuel filter, fuel pump... We also cleaned out the IAC and the throttle body...

3 Answers

Your Answer:

Related Questions