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
53,065

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
215

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
215

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

CJ Michaels
705

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

Add photo

Related Questions

Mustang
Looking for a Used Mustang in your area?
CarGurus has 24,759 nationwide Mustang listings starting at $1,625.
ZIP:

Search Ford Mustang Questions

Ford Mustang Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,880
#2 carGrrl
carGrrl
Reputation 620
#3 tenspeed
tenspeed
Reputation 500
View All

Related Models For Sale

Used Chevrolet Camaro"
722 Great Deals out of 28,297 listings starting at $1,795
Used Dodge Charger"
818 Great Deals out of 31,516 listings starting at $2,950
Used Chevrolet Corvette"
400 Great Deals out of 10,847 listings starting at $3,900
Used Ford F-150"
2,571 Great Deals out of 174,398 listings starting at $1,746
Used BMW 3 Series"
1,556 Great Deals out of 36,200 listings starting at $2,000
Used Honda Accord"
1,598 Great Deals out of 65,600 listings starting at $800
Used Honda Civic"
1,043 Great Deals out of 55,980 listings starting at $1,200

Used Cars For Sale

2014 Ford Mustang GT Convertible For Sale
3 Great Deals out of 147 listings starting at $26,500
2013 Ford Mustang GT Convertible For Sale
48 listings starting at $24,987
2012 Ford Mustang GT Convertible For Sale
30 listings starting at $19,982
2011 Ford Mustang GT Convertible For Sale
33 listings starting at $21,417