Help needed figuring out why my 85 mustang bogs down whe you try to accelerate quickly

85Mustanguser
25

Asked by 85Mustanguser Mar 01, 2013 at 01:01 PM about the 1985 Ford Mustang GT Convertible

Question type: Maintenance & Repair

I've changed the fuel filter made sure the Cadalitic converter wasn't clogged help would be
greatly appreciated all that seems to happen is as you start to accelerate it bogs down but
if you slowly accelerate it is fine

5 Answers

tenspeed
50,695

Your carburetor has a acceleration pump that is supposed to squirt a shot of fuel down the throat when the butterflies first open. It sounds like yours is not squirting. - With the engine off, remove the air cleaner and open the throttle quickly. You should see a little spray.

1 out of 1 people think this is helpful.
Eugen Dinica
205

What kind of engine?

85Mustanguser
25

5.0 V8 the engine with throttle body fuel injection and is several years newer with 8,000$ in replaced and new aftermarket parts one moment let me upload a photo of the engine

Eugen Dinica
205

Could be your mass airflow sensor, plugged injectors, a failing fuel pump. Do you have a scan tool??

CJ Michaels
655

its your fuel pressure regulator i think, when u accelerate hard u need more fuel pressure to spray all that fuel in....it sounds like when ur accelerating slowly, the fuel pressure doesnt need to go as high so theres no issue....but it could also just be a tune up, maybe running a bit too lean and not getting enough fuel off the line

Your Answer

Related Questions

Mustang
Looking for a Used Mustang in your area?
CarGurus has 26,836 nationwide Mustang listings starting at $1,895.
ZIP:

Search Ford Mustang Questions

Ford Mustang Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,750
#2 carGrrl
carGrrl
Reputation 610
#3 tenspeed
tenspeed
Reputation 480
View All

Related Models For Sale

Used Chevrolet Camaro"
726 Great Deals out of 30,809 listings starting at $2,800
Used Dodge Charger"
724 Great Deals out of 28,847 listings starting at $4,200
Used Chevrolet Corvette"
396 Great Deals out of 9,820 listings starting at $2,999
Used Ford F-150"
2,153 Great Deals out of 184,755 listings starting at $999
Used BMW 3 Series"
1,392 Great Deals out of 34,953 listings starting at $1,595
Used Honda Civic"
895 Great Deals out of 48,117 listings starting at $1,450
Used Honda Accord"
1,390 Great Deals out of 79,856 listings starting at $1,000

Used Cars For Sale

2014 Ford Mustang GT Convertible For Sale
3 Great Deals out of 197 listings starting at $27,478
2013 Ford Mustang GT Convertible For Sale
5 Great Deals out of 55 listings starting at $24,987
2012 Ford Mustang GT Convertible For Sale
28 listings starting at $24,594
2011 Ford Mustang GT Convertible For Sale
3 Great Deals out of 24 listings starting at $20,992