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
56,885

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 29,909 nationwide Mustang listings starting at $1,995.
ZIP:

Search Ford Mustang Questions

Ford Mustang Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,940
#2 carGrrl
carGrrl
Reputation 630
#3 tenspeed
tenspeed
Reputation 500
View All

Related Models For Sale

Used Chevrolet Camaro"
574 Great Deals out of 33,253 listings starting at $2,595
Used Dodge Charger"
546 Great Deals out of 28,619 listings starting at $4,900
Used Chevrolet Corvette"
326 Great Deals out of 11,233 listings starting at $3,997
Used Ford F-150"
2,994 Great Deals out of 151,632 listings starting at $1,000
Used BMW 3 Series"
1,451 Great Deals out of 39,150 listings starting at $1,688
Used Honda Civic"
1,019 Great Deals out of 63,514 listings starting at $1,199
Used Honda Accord"
1,235 Great Deals out of 68,706 listings starting at $950

Used Cars For Sale

2014 Ford Mustang GT Convertible For Sale
3 Great Deals out of 118 listings starting at $26,400
2013 Ford Mustang GT Convertible For Sale
53 listings starting at $22,995
2012 Ford Mustang GT Convertible For Sale
3 Great Deals out of 41 listings starting at $17,588
2011 Ford Mustang GT Convertible For Sale
3 Great Deals out of 37 listings starting at $17,999