Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

1990 F150 302 oil leak on rear main seal

287 views
Skip to first unread message

Craig A Swoboda

unread,
Dec 11, 1996, 3:00:00 AM12/11/96
to

I've got a 1990 Ford F150 w/ 47k miles on it and this leak has
progressively gotten worse. Is this a common problem for these
engines? With this few miles? Any recourse with Ford?

Is this something a DIY can do? Can I lift up the engine
and replace the seal after removing the oil pan?
What about if the crankshaft is scored? Is this common?

If I have a shop do it are the chances there that they are going
to remove the engine to replace it?

thanks


--
_____________________________________________________________________
| Craig A. Swoboda |

Jim (cheater8) Stoltz

unread,
Dec 11, 1996, 3:00:00 AM12/11/96
to

It is a common problem on a lot of vehicles, but 47k is
kinda young. Anyhow, you have to remove the transmission.
On a Ford, it's an easy replacement. You hack the old
one out and lightly tap the new one in. On GMs, you
have to drop the oil pan, too, and tap the top part
of the seal out around the crank.
Jim

Comm Center

unread,
Dec 12, 1996, 3:00:00 AM12/12/96
to Craig A Swoboda

Craig A Swoboda wrote:
>
> I've got a 1990 Ford F150 w/ 47k miles on it and this leak has
> progressively gotten worse. Is this a common problem for these
> engines? With this few miles? Any recourse with Ford?
>
> Is this something a DIY can do? Can I lift up the engine
> and replace the seal after removing the oil pan?
> What about if the crankshaft is scored? Is this common?
>
> If I have a shop do it are the chances there that they are going
> to remove the engine to replace it?
>
> thanks
>
> --
> _____________________________________________________________________
> | Craig A. Swoboda |


11 Dec 96

At one time, a special 2 piece seal with a special tool was common for
repairing leaking rear main seals. As to whether or not they are still
available for your 90 PU or not is best answered by an REPUTABLE
independent repair garage. Your vehicle is probably out of warranty and
a trustworthy independent is probably your best bet. If such a repair
kit is still around, the cost of repair should be nominal. Chances of
the crank being scored are minimal unless the engine has been run without
oil.

http://www.netside.com/~parsec/parsec.htm

Motorola Macintosh User

unread,
Dec 12, 1996, 3:00:00 AM12/12/96
to Craig....@cray.com

Are you sure its a rear main. It could be the intake manifold leaking. Mines been fixed
twice for this.
Al

J. Dunn

unread,
Dec 13, 1996, 3:00:00 AM12/13/96
to

There was a problem with the intake manifold rear seal. on the 1990
302. Warped manifold being the culprit. Some shops refused to do that
repair because they would have too many comebacks. Sometimes the seal
would blow out right away and the book shows about 7 hours labor.

Eastmadrvr

unread,
Dec 25, 1996, 3:00:00 AM12/25/96
to

Just be sure it's not a plugged pcv valve.It's a little difficult to
access under the pass side intake runners, but could be contributing to
the problem

0 new messages