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Trucks, Trailers and Hauling for Shows

98 Dodge 1500, 318 Problems


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  #11  
Old 05-24-2014, 09:25:31 PM
Culy Culy is offline
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Default Re: 98 dodge 1500,318 problems

same thing with my dodge. Simply was the cat.
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  #12  
Old 05-25-2014, 11:18:23 AM
uglyblue66 uglyblue66 is online now
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Default Re: 98 dodge 1500,318 problems

Well I had time to work on it this morning.
I first cranked it up and it ran "ok" while it was cold. .But I went ahead and took the pipes loose some and it ran better. I put it all back and was going to park it outside and it was running "ok". I took it down the road a mile or so at normal speed but it started it's sagging and moaning again. By the time I got turned around 2 miles down the road it was 20mph and I was wondering if I was going to have to go get my chevy to pull it home.
Anyhow it got so weak it barely made it in the shop and shut off it's self. I got it restarted, and moved it forward. I jacked it up and took the pipes loose again and tried it and it ran fine,minus the created exhaust leaks of course.
and STINKS like eggs. Which from what I understand is a key thing with cats clogged up.
So I think you fellows steered me in the right direction and I appreciate it. I found a cat and y pipe combo on ebay for 199. I think we might go that route and fix it here at home. Seems easy enough.
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  #13  
Old 05-25-2014, 11:20:22 AM
RSCurtis RSCurtis is offline
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Default Re: 98 dodge 1500,318 problems

It it smells bad, it's probably running too rich, and will quickly melt another cat.
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  #14  
Old 05-25-2014, 01:00:31 PM
I like oldstuff I like oldstuff is offline
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Default Re: 98 dodge 1500,318 problems

^ It's time to check sensors and other things to determine why it's running so rich and causes the sulphur smell and cat overheating. If you ran it at night you likely would see that the cat is glowing red.
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Old 05-25-2014, 01:28:16 PM
uglyblue66 uglyblue66 is online now
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Default Re: 98 dodge 1500,318 problems

Well thanks for the help but I am kinda getting stumped.It passed emissions about 2 months ago.
The 4 plugs I pulled from the drivers side were white and clean and had about 3000 miles on them.
Now here is what I forgot to mention.
I had put the truck in the shop yesterday about 9 am.I turned the key on to run down the window and in a hurry I forgot to turn the key off. I found the battery to be low this morning.So I charged it some before I started.I did smell fuel when I first tried to start it.
Could this have caused the smell in the exhaust?
Judging from what I am reading else where,oil usage,short trips and age could be the culprit. 265,000 miles and it does use a little oil.
No codes other than the miss fire codes i detected when i started the troubleshooting.
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Old 05-25-2014, 02:54:01 PM
John Dunn John Dunn is offline
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Default Re: 98 dodge 1500,318 problems

I had a 99 with the 360 and had the same thing happen. Lost power to the point it wouldn't go any more and started to overheat. Let it sit a while and was able to start it and got home the last couple miles. Dropped a pipe from manifold to test for plugged converter and it ran great but loud of course. I had to drive it to work the next day, no time to hunt up parts and spend money. Removed pipe, cut the converter open with abrasive wheel, removed the collapsed and plugged contents, and welded it back up. Sold the contents to a scrapper friend for cash! Come to think of it, it did have a rattle leading up to this incident that I assumed was just a heat shield or something, rattle was gone after fix.
Another time it instantly started to miss going down the road, I limped it home 40 miles. Assumed it was computer or injector problem and took it to a shop. They thought the same at first but couldn't find a problem. Turned out to be just a broken intake valve spring. I can't believe I got home without it dropping the valve / kaput!
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  #17  
Old 05-25-2014, 09:45:00 PM
C-Wade7 C-Wade7 is offline
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Default Re: 98 dodge 1500,318 problems

It is going to smell rich with cats loose, and rotten if they are plugged. I think you found it with the cat.
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Old 05-25-2014, 09:54:01 PM
uglyblue66 uglyblue66 is online now
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Default Re: 98 dodge 1500,318 problems

Ok, thanks!
He and I both are optimistic that this will fix it.The muffler is a slide on fit with clamp. The parts on Ebay bolt on and I can get to the 4 bolts on the manifold and they are not rusty.The only glitch I see in replaceing the parts is the wire connector for the upstream o2 sensor. The connector seems to be on the top of the transmission and hard to get to.Cant find or feel it yet but didnt try real hard this evening as my back was letting me know it was time to quit before i really started to hurt.
This is the part I think will work as a replacement.
http://www.ebay.com/itm/251511389305...84.m1423.l2649
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  #19  
Old 05-25-2014, 10:25:42 PM
J.B. Castagnos J.B. Castagnos is offline
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Default Re: 98 dodge 1500,318 problems

If the wire is long on the O2 sensor just wind it up as you unscrew it, unwind it when you install it. If you're getting the rotten egg smell one section of the convertor is still working, they are usually dual bed. If it's plugged vacuum will drop, map sensor will call for rich.
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  #20  
Old 05-30-2014, 02:38:32 PM
uglyblue66 uglyblue66 is online now
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Default Re: 98 dodge 1500,318 problems

Well, it is fixed. Thanks for the help and advice.
No rich smells, no rattles and the truck runs good.
There was some grey powder came out of the convertor when I turned it up on it front end and bounced it.
It was a pain the @-- to get the old 1 out and new 1 in but it was cheaper than having it done elsewhere.
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