last night i was doing about 35 and it started lugging badly and vibrating. i pressed harder on the gas and the rpms barely went up and it was reallly lugging and i could hear something going "click, click clack" or something along those lines; this noise was intermittent and didnt happen that much- coming from the engine compartment. i didnt think it sounded like internals. i got a CEL immediately when it started doing this.

i pointed to the tps and replaced it this morning and got no more problems, it was back to normal, then i was driving home tonight and it did the same thing just with no CEL

 

Will it downshift if you step harder on the gas?

 

nope, just lugs very bad. i could swear its the tps again!

 

Check and see if your TV cable broke.

 

ok will do. would that cause the engine to vibrate? it lugs very bad, like it has no pwer at all, almost to the point of going nowhere then itll stop lugging and get up into the 2k range and then itll start back up lugging

 

Got a failed catalytic converter on there by any chance?

 

how can you tell if its bad? it does burn alot of oil

just remember we are looking for something that probably would trigger a CEL... i think

 

If its clogged enough to make it run that bad, its clogged enough to glow at night. That's one way.

If your close to certain its clogged, you can drill into it and see if the engine runs better. That's another way.

You can strike it with a mallet and listen for parts and pieces shaking in it.

Or you can take the collector(s) apart, put in some ear plugs, and see if its still restricted as you describe.

 

Temporarily remove the pre-cat oxygen sensor and go for a ride. If it clears up, something downstream of that point (cat or muffler) is plugged. Note that what you're looking for is very perceptible improvement, not perfection. Without the pre-cat sensor the PCM will remain in open loop mode, and more importantly the sensor port isn't anywhere near large enough to pass all of the engine's exhaust.

Knocking the cat around with a rubber mallet would tell you if the internals have come apart. You shouldn't hear bits bouncing around when you whack it -- if you do, the cat's a goner.

Since you've said that the engine is burning oil, a plugged cat seems most likely. And these engines tend to eat cylinder heads if you leave them to suffer a plugged catalytic converter for too long, so either rule this out or get it fixed ASAP. And correct the oil consumption problem, too, because the new part won't last long if you keep throwing engine oil at it. The high heat of the converter cooks that oil down into carbon which plugs the works pretty quickly.

Be prepared to replace the pre-cat oxygen sensor soon. Engines that burn oil tend to chew through oxygen sensors, too.

 

beleive me, this 360 (blown rings) is just for getting me around while my 408 is being buttoned up in the garage . ok sounds like a plan ill let uk how it works

it ran fine all morning with no cat and then it ran fine for a while with the cat gutted. then it started doing it again and a cel popped up that read random/multiple cylinder misfire, cylinder 1 misfire, cylinder 3 misfire. whats the deal?

it will literally go about 5 mph. and when i press the gas harder the rpms start to drop and there is an intermeittent clunking sound coming from the engine compartment