Here again to ask questions about my minivan. Lately it’s been hesitating really bad at WOT and there is 0 top end power (>4k rpm). The floor also gets really hot in the general area of the car. It’s had a p0420 for at least 100-150 thousand miles from previous owner reports. I don’t have an IR temp gun but I could probably source one. Seems like a bad cat?
Plugged cat? 2005 Chrysler van
- Thread starter Lockasiam
- Start date
That's a good place to start.
Use a hammer drill and masonry drill bit to unclog the catalytic converter.
Use a hammer drill and masonry drill bit to unclog the catalytic converter.
100-150k? Too late for Cataclean 
Get a cheap cat from ebay or rockauto
Get a cheap cat from ebay or rockauto
Just bypass the cat with a straight pipe.
I’m poor
Thought as much, it’s cutting time
Any chance it’s worth anything because a few dollars would be cool
Yes
If the original one clogged up a replacement will too. Could take several months could take a few years.
It’s probably from the oil consumption. Reminds me that I need to check my dipstick
I thought about putting one of those stupid turbo muffler things on itI vote for a straight pipe only! Get rid of the muffler too
I’ve been told the 3.8 sounds like trash without any kind of muffling or resonator so I’ll give the tone some consideration since I’m not a tweaker
Yeah I'd be shocked if a 2005 wasn't burning a good amount of oil.
My daily 2008 Civic 1.8 R18 burns no oil with 243.000 miles. Old does not always mean oil burner.
that's what ebay is for
Use a heavier HM oil and maybe some motor honey
Perhaps a piston soak might be worth trying? A can of Berryman is like $10
It originally called for 5w20 which is what I put in it when I first got it (was supplied for free) until about 210k or so(?) when I started using 5w30. Last change I used M1 5w40 euro and it momentarily improved until it just went ahead and just consumed about the same rate as ST 5w30. Using ST HM 5w30 this go around to see if it makes a difference. I don’t really care if it uses some between changes but I’d rather it not get to the point where it drinks 2 quarts a change so I might try some berrymans near the end of this oil change. At 251k though and some really hard miles (towing and street racing) I’d probably say it’s just getting worn out.Use a heavier HM oil and maybe some motor honey
Perhaps a piston soak might be worth trying? A can of Berryman is like $10
He may mean more my engine since they’re known for it