George Adams wrote:> > I am considering a pre-emptive intake manifold replacement on my> > wife's 1997 G.M. 54,000 miles, looks and runs like new.> > I checked Advance Auto Parts website and found two choices, the> > Motormite at $265, and the Dorman at $199. The show a picture of the> > Dorman, and it appears to be all plastic like the original. No> picture> > of the Motormite, but it carries a lifetime warranty. Anyone have any> > info on these two items?> > TIA,> > George>

Since when did they put Ford engines in a GM?!! ­>

You are either on the wrong newsgroup or you had a typo.> The GM intake problem is with the 3800. The Ford has had problems with> the 4.6.> The GM had a problem with the EGR gases eating through the plastic> passages. The Ford had a problem with the coolant leaking from the> plastic intake because it wasn't reinforced enough. I can't talk about> the Motormite because I haven't used it, but the Dorman is good. Both> of the GM and Ford have metal reinforced areas where they were burned> from the EGR or where they were leaking coolant.> If you want to see some better pictures of the aftermarket manifolds,> just go to ebay and type either: 4.6 intake manifold or 3800 intake> manifold. A lot of individuals are selling these replacement manifolds.>

Chris Shea wrote:> > i think he's talking about a mercury grand marquis> >

Of course. I guess my brain wasn't working yet today.> Being it's his car, it's his call. The Ford part is higher, but like I> mentioned, the Dorman is a good part. But once again, it's his money.> I saw on another post that somebody had gotten one from Ford for $140.> I've never seen a genuine Ford replacement intake that cheap, but if he> did, that's the route to take.>

I am considering a pre-emptive intake manifold replacement on my

wife's 1997 G.M. 54,000 miles, looks and runs like new.

I checked Advance Auto Parts website and found two choices, the

Motormite at $265, and the Dorman at $199. The show a picture of

the

Dorman, and it appears to be all plastic like the original. No

picture

of the Motormite, but it carries a lifetime warranty. Anyone have

any

info on these two items?

TIA,

George

"George Adams" <george9219@aol-dot­-com.no-spam.invalid­> wrote in message

news:1202646762_113­85@sp12lax.superfeed­.net...

I am curious why you think you need to replace the manifold at this late

date. My Mother owned two Grand Marquis and I owned a Mustang with that

engine and none had the manifold problem. And even if the manifold

fails, the engine has "fail safe cooling." You would be able to continue

driving the vehicle (at reduced speed) to reach a repair location.

You might want to read

http://www.p71inter­ceptor.com/recalls/0­1m02/tsb0222.html .

The Ford replacement manifold (P/N F8AZ-9424-CB) is about $350 (with a

discount). I wouldn't worry so much about the manifold being plastic, as

I would about how well it was made.

Rock Auto has a picture of the Dorman manifold. The air runners are

plastic, but that the water crossover is aluminum (see

http://www.dormanpr­oducts.com/images/it­ems/hwrap1/615-178%2­0alu%20Top.jpg

or http://tinyurl.com/­yprzxk . The Dorman prroduct page is

http://tinyurl.com/­2l62bh .

I am not sure why they have a Dorman and a Motormite listing. Motormite

is a Dorman trade name. As far as I can tell from the Motormite catalog

https://www.dormanp­roducts.com/catalog/­motormite/102-110_H-­I-JFinal.pdf#Page=9

the Motormite manifold is the Dorman manifold.

Ed

.

"George Adams" <george9219@aol-dot­-com.no-spam.invalid­> wrote in message

news:1202646762_113­85@sp12lax.superfeed­.net...

I am curious why you think you need to replace the manifold at this late

date. My Mother owned two Grand Marquis and I owned a Mustang with that

engine and none had the manifold problem. And even if the manifold fails,

the engine has "fail safe cooling." You would be able to continue driving

the vehicle (at reduced speed) to reach a repair location.