Has any one had a problem with 2006 Dodge Caravan 3.3L freeze plugs? I have had 2 blow out. Now a third has failed. This year only had 3yr. 36,000 mile warranty. Why? This van has 52,000 miles...

 

Welcome to DF
The only time i seen this was on the 1997 sebring 2.5L engine. Which ones had fail?

 

The first one was front middle cylinder in block. the second was distributor side in manifold. Now another has rusted through rear middle cylinder block. Rust in radiator, signs of rust in coolant system is obvious.
How could any certified mechanic state there is no signs of coolant system failure, when he had two of the rusted plugs in his hands and rust signs in radiator? The Dealer stated the antifreeze was wrong. That anitfreeze was only in the van 4 days because the original leaked out on Interstate 70 when the first plug blew....

 

if they rusted, they didn't "blow out" they disintegrated

post a picture so we can see these failed parts.

being they are not the same one failing, I suspect there may have been a contamination issue with the coolant a long time ago that is just now coming to surface.

maybe you should have had the old coolant sample tested for high acidic content

 

At this point i would replace all the freeze plugs and the ones between the transmission and engine block too. Then add the correct coolant.You also may want to look at the hose's too.

 

Thanks,
The coolant leaked onto Interstate. Cannot be tested.
No, they did not blow, they are rusted from inside out.
I am looking into total coolant system replacement. Radiator is rusted, heater coil ???, and "All" freeze plugs.
Last month the dealer flushed and put the proper coolant in.
Even though this van is out of warranty, Chrysler may pay for, or "help" pay for the repairs. It's just a long wait.
They also should supply a loaner vehicle until fixed....
Here are the pics. 2 I have already replaced and third which failed a month later.

 

Thats great.