I was out wheeling today and thought I hydrolocked it up. Water up over the hood and she stalled, we got pulled out and pulled the plugs, they were all dry and cyclinders were dry " thank god" tail pipe was completely full of mud and swamp crap. I scrapped out what I could and comtinued on the trail, not long after I lost all low rpm cababilities and it would stall out more often than not. I had to get her home so I poked a few holes in the muffler (sand/silt pored out) this helped but no where near normal idle. So I'm thinking my cat may also be full of silt and crap, this would cause my symptoms wouldn't it? The air filter was immediately swapped out and all hoses from air box to intake were removed and checked for water when it happened and they were pretty much dry. I have another exhaust system from cat back, should I swap them out and see if this fixes it, is it worth doing or could it be something else?
This was taken just before she died!!

 

Maybe your ecu got wet or something else under the hood? The ignitor box?

Just throwing out ideas.

 

I't fine at higher rpm's 2000 and up, once I hit the highway it got me home no problems until I was back in the start and stop of the city.

 

Another picture just for the sake of posting a picture.

 

Ecu is down at the passengers feet and that didn't get wet, ignitor box, I'm not familiar with would it cause the low idle symptoms?

 

Almost forgot, she ran a little hot for a little while(3/4 on gauge) once I made it back to the city but not for to long.

 

bumpity bump

 

I'm thinking you need to clean out that exhaust or replace it although I'm unsure why it only dogs at low rpms.

 

I'm hoping to get it replaced today, will post the outcome.

 

I'm thinking with the exhaust system full of gunk that there is to much backpressure for the low rpm's, I'm not much of a wrencher so I'm asking also is this theory correct?

 

I think the exhaust would give you that symptom. Also make sure your throttle body is clean- especially where air passes by the throttle blade at idle.

As far as your hot temperatures, you may have mud clogging the fins on your radiator. Take a garden hose with not too high of pressure and clean it out if that is the case.
Good luck

 

I got the exahust swapped and it made a bit of difference but not back to normal. So of to the store for some throttle body cleaner. I removed from air box to plenum and cleaned it all out, it was oily kind of black sooty stuff. swapped in new pluggs and she's almost back to normal. It's idling normal 800-900 rpm until it's warm then it drops down to 500-600 rpm's. Any ideas?

 

So it idles at 800-900 cold and then 500-600 warm? I'd say adjust your idle beck to 850 when it's warm. That should put you at about 1400 cold which is just about right. Cold idle should be 1500, warm should be 850.

 

I've tried this, it still drops to the 500-600rpm range. I'm thinking it's missing, plugs have been changed out should I be looking at witre and dist.?