93 F-150 300ci 6cyl Hesitates under hard acceleration

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rd - 23 Oct 2003 01:56 GMT

My 4x4 truck 93 F-150 6cyl. hesitates momentarily when I step on the gas
hard. Is this normal? I just bought it used and everything is in
excellent shape. Thanks

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Derrick 'dman' Hudson - 23 Oct 2003 23:40 GMT

> My 4x4 truck 93 F-150 6cyl. hesitates momentarily when I step on the gas
> hard. Is this normal? I just bought it used and everything is in
> excellent shape. Thanks

No, that's not normal. My 4x2, manual transmission, accelerates just
fine.

I just ran across this, maybe it would help you?
"Hesitation/Surge-Light Acceleration 4.9L Engine Bulletin"

http://www.helminc.com/helm/product2.asp?class%5F2=FCT&mk=Ford+%26+Lincoln+Mercu
ry&yr=1993&md=F%2D150+Pickup&dt=&module=&from=result&Style=&Sku=A95210&itemtype=
K&mscsid=7CR2405UWHJ88PPAWBW32FP84TGX73P2

-D

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In my Father's house are many rooms; if it were not so, I would have
told you. I am going there to prepare a place for you. And if I go and
prepare a place for you, I will come and take you to be with me that you
also may be where I am.
John 14:2-3

http://dman13.dyndns.org/~dman/

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rd - 24 Oct 2003 02:33 GMT

Thanks Derrick for the help.

Rd

> > My 4x4 truck 93 F-150 6cyl. hesitates momentarily when I step on the gas
> > hard. Is this normal? I just bought it used and everything is in
[quoted text clipped - 5 lines]
> I just ran across this, maybe it would help you?
> "Hesitation/Surge-Light Acceleration 4.9L Engine Bulletin"

http://www.helminc.com/helm/product2.asp?class%5F2=FCT&mk=Ford+%26+Lincoln+Mercu
ry&yr=1993&md=F%2D150+Pickup&dt=&module=&from=result&Style=&Sku=A95210&itemtype=
K&mscsid=7CR2405UWHJ88PPAWBW32FP84TGX73P2

> -D

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RFan - 24 Oct 2003 12:16 GMT

My '92 4.9L did the same thing. I found a TSB that addressed the problem. It
stated that the throttle body gasket was leaking and gave a p/n for a
revised gasket. ( Ford p/n F5TZ-93936-BA) Sure enough, when I pulled the
throttle body off I found the gasket sucked in on one side.

RFan

> My 4x4 truck 93 F-150 6cyl. hesitates momentarily when I step on the gas
> hard. Is this normal? I just bought it used and everything is in
> excellent shape. Thanks

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gil - 27 Oct 2003 02:04 GMT

Yep same here. I lived with that hesitation for many years. The new throttle
body gasket fixed it.

> My '92 4.9L did the same thing. I found a TSB that addressed the problem. It
> stated that the throttle body gasket was leaking and gave a p/n for a
[quoted text clipped - 6 lines]
> > hard. Is this normal? I just bought it used and everything is in
> > excellent shape. Thanks

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