oil pan rust

**Granam73** · 12-09-2008, 03:59 PM

The oil pan on my 1999 WJ 4.7 v8, is covered in rust bubbles. How thick is the pan? and how worried should I be? Is the pan very difficult to replace? any help would be greatly appreciated.

**jeepdavetj** · 12-09-2008, 05:24 PM

Pain in the butt to replace and I wouldn't worry too much about it. Scrape it and spray it on the jeep. Unless the rust is really severe I wouldn't sweat it.

cmonson · 12-09-2008, 07:14 PM

Mine had some bubbles as well. I used an orbital sander where I could, a scraper and hand sand where the orbital would not reach, then used a product called zero rust, followed by some POR15. So far so good...

On the trans pan I had some rust as well. I performed the same procedure and all is good.

as a temp fix so it does not get worse, just spray it down with oil.

kmd1776 · 12-09-2008, 07:22 PM

friend had this problem on his 99 4.7 wj. by the time we found it, it ended up rusting right through. i would keep an eye on it

Turbonut · 12-09-2008, 07:42 PM

The pans on the WJ are junk. Another cost saving item from Chrysler. I believe they are about 1/2 the price of the 5.2 pan. After cleaning, spraying, etc. mine finally rusted through. Torch helped as the manifold to pipe are bolts/nuts rather than studs. Wet everything down and torch them off, remove exhaust pipe, starter, structual cover and then the pan and I believe the pickup tube.
Have fun.

**Double E** · 12-10-2008, 11:01 AM

Hey Granam!

I have a friend working on an old muscle for me car in Campobello. Can I IM you?

**JeepOrvis97** · 12-10-2008, 01:19 PM

Try to fix that rust ASAP with some POR15, I just had the one on our WJ rust out a couple weekends ago, it is such a pain to change, as said, the y-pipe has to come off, I just cut it with a chain cutter and put a butt-an-end clamp on it and it holds up fine, the bolts on the manifold came right off, the pan was stuck really bad to the "reusable" gasket(which you should just replace while you're in there) and lastly, I didn't have to take the starter off but it is the 4.7L H.O. it could be different. I tore up that gasket pretty bad and bent it too while prying it off and RTV doesn't hold back the oil and don't ask me how I know. Good luck and I hope it doesn't leak on you

Strizzy · 12-10-2008, 01:39 PM

I'd get that fixed asap. I bought a new pan and gasket to replace it, but got lucky and ended up replacing my engine altogether, which had a perfectly good pan on it. From looking in the FSM, it doesn't look like a fun job to do. Good luck.

Also, take a look at your trans pan, mine rusted completely through. I ended up going out to my jeep one morning with a big puddle of fluid on ground.

**JeepOrvis97** · 12-10-2008, 01:45 PM

Quote:

Originally Posted by strizzy123

Also, take a look at your trans pan, mine rusted completely through. I ended up going out to my jeep one morning with a big puddle of fluid on ground.

mine's almost gone, but at least the trans pan is easy to change

00RedWJ · 12-10-2008, 01:48 PM

I looked under my jeep the other day and was surprised how much rust there was everywhere. Also a leaking pinion seal on the front differential and two ripped CV joint boots. Fixed all that stuff. The exhaust looks pretty rusty as well

**JeepOrvis97** · 12-10-2008, 01:50 PM

If you do replace it and don't need to take the starter off like in my case, make sure you still disconnect the negative battery terminal, I didn't do this(i know, it was dumb), and arced the starter, twice actually, which failed a week later.

**Granam73** · 12-10-2008, 05:49 PM

Quote:

Originally Posted by Double E

Hey Granam!

I have a friend working on an old muscle for me car in Campobello. Can I IM you?

I got a quote of 285 for labor from a local dealer. I thought about sanding some of the rust off but I think I will trigger a leak. Thanks for all the help!

And go head and im me if you want Double E

Turbonut · 12-10-2008, 07:04 PM

Quote:

Originally Posted by granam73

I got a quote of 285 for labor from a local dealer. I thought about sanding some of the rust off but I think I will trigger a leak. Thanks for all the help!

That's a great prices, especially from a dealer!

tozar · 12-10-2008, 08:50 PM

I replaced mine too. Rusted to death and leaking. They're thin metal and junk. You could do this yourself. Oil pan is not too much - about $100

12-09-2008, 07:14 PM	#3
cmonson Registered User Join Date: Nov 2006 Location: Columbus Posts: 1,549 Profile Gallery Classifieds My Jeeps	Mine had some bubbles as well. I used an orbital sander where I could, a scraper and hand sand where the orbital would not reach, then used a product called zero rust, followed by some POR15. So far so good... On the trans pan I had some rust as well. I performed the same procedure and all is good. as a temp fix so it does not get worse, just spray it down with oil.

12-09-2008, 07:42 PM	#5
Turbonut Registered User Join Date: Nov 2004 Posts: 1,828 Profile Gallery Classifieds My Jeeps	The pans on the WJ are junk. Another cost saving item from Chrysler. I believe they are about 1/2 the price of the 5.2 pan. After cleaning, spraying, etc. mine finally rusted through. Torch helped as the manifold to pipe are bolts/nuts rather than studs. Wet everything down and torch them off, remove exhaust pipe, starter, structual cover and then the pan and I believe the pickup tube. Have fun.