• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

3.8 Minivan Engine Head Gasket Freakishnish

padam

Well-Known Member
Local time
2:15 AM
Joined
Aug 3, 2020
Messages
3,157
Reaction score
5,648
Location
Canton, OH
I have a 2005 Chrysler mini van with the 3.8 V6.

I put head gaskets on it a few years ago because it was using coolant, and it seemed like it was getting combustion gas in the coolant. It has MLS type gaskets, I couldn't really see any problem areas. The job turned out ok, but it was a major repair that I am not going to do again.

Last winter it seemed like it was starting to use a little coolant. But I don't drive it too much, and figured it might be a hose that runs to the rear heater. I havn't had time to mess with it, just add a little coolant now and then. I have mostly been driving my truck this summer, so still not messing with it.

About a month ago, I parked it in a part of my driveway that is pretty steep uphill. I went to start it a few days later and it wouldn't turn over. It didn't act licke a dead battery, not clicking, I know this sounds crazy, but felt like it was hydro locked. I just drove my truck that day. A few days later I was going to jump start it, but thought I would see if it would start first. It fired right up. I drove it about five miles to work, and when I left there wasa huge white could behind me. I thought for sure it was toast. But I put coolant in it a couple times, and now it acts fine.

I have probably put 500 miles on it since and it is not overheating, and the heat still works good. Seems fine.

I think parking it uphill may have forced the coolant into the combustion chamber through a crack or the head gasket. Has anybody experienced anything like this?
 
I have a 2005 Chrysler mini van with the 3.8 V6.

I put head gaskets on it a few years ago because it was using coolant, and it seemed like it was getting combustion gas in the coolant. It has MLS type gaskets, I couldn't really see any problem areas. The job turned out ok, but it was a major repair that I am not going to do again.

Last winter it seemed like it was starting to use a little coolant. But I don't drive it too much, and figured it might be a hose that runs to the rear heater. I havn't had time to mess with it, just add a little coolant now and then. I have mostly been driving my truck this summer, so still not messing with it.

About a month ago, I parked it in a part of my driveway that is pretty steep uphill. I went to start it a few days later and it wouldn't turn over. It didn't act licke a dead battery, not clicking, I know this sounds crazy, but felt like it was hydro locked. I just drove my truck that day. A few days later I was going to jump start it, but thought I would see if it would start first. It fired right up. I drove it about five miles to work, and when I left there wasa huge white could behind me. I thought for sure it was toast. But I put coolant in it a couple times, and now it acts fine.

I have probably put 500 miles on it since and it is not overheating, and the heat still works good. Seems fine.

I think parking it uphill may have forced the coolant into the combustion chamber through a crack or the head gasket. Has anybody experienced anything like this?
It could be hydro locked and aggravated because of the incline. Did you check all the surfaces for flatness? You can put new head gaskets on warped heads all day long and not get them to seal. Magnaflux for cracks is necessary as well.
 
It could be hydro locked and aggravated because of the incline. Did you check all the surfaces for flatness? You can put new head gaskets on warped heads all day long and not get them to seal. Magnaflux for cracks is necessary as well.
It was several years ago that I did the gaskets. I did not mag anything, I probably did check the surfaces for flatness. It was fine for a few years.
 
In my mind, combustion pressure would be much greater than the pressure from gravity.
 
The intake gasket is more infamous for leaking than the headgaskets,, IMO
Possible it's leaking into an intake port.. I'd take a look at the rear( D. S) of the intake V for leakage
 
Auto Transport Service
Back
Top