Why will it not accelerate correctly?


Asked by eldorodo Apr 19, 2013 at 07:40 PM about the 1988 Ford E-150 Econoline Ext

Question type: General

1988 E-150 with 302 Multi-port, new plugs, new fuel filter, new air filter, no cat. converter, fuel press. in rail is 37 p.s.i., MAP good, has a auto. trans w/overdrive... in overdrive it will hardley maintain 55 MPH... if you come to any incline at all... hard to get over 35-MPH.. put it in drive, maybe a little better, but not much... LACKS ACCELLERATION AND POWER...

3 Answers

Not Active

...again, am like a broken record here, it's the EGR valve, what takes exhaust gas and puts it into the intake manifold under decel and/or specific conditions, gets messed up with carbon and frequently has a leaking vacuum control hose~ take it apart and de-carbon it, or buy a new one~


Could be something dealing with the ignition timing. Where it will run good but no power. Vacuum advance if it has one.

1 out of 1 people think this is helpful.

Did the cat melt down? If it did then it may have plugged the muffler. Have you had an exhaust backpressure test done?

Your Answer

Add photo

Related Questions

Looking for a Used E-150 in your area?
CarGurus has 191 nationwide E-150 listings and the tools to find you a great deal.

Search Ford E-150 Questions

Ford E-150 Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 340
#2 dandyoun
Reputation 310
#3 kbro
Reputation 300
View All

Related Models For Sale

Used Ford F-150"
2,931 Great Deals out of 178,420 listings starting at $1,000
Used GMC Sierra 1500"
972 Great Deals out of 63,889 listings starting at $1,000
Used Ford F-250"
495 listings starting at $4,995
Used Ford Mustang"
653 Great Deals out of 42,605 listings starting at $1,695

Used Cars For Sale