Rough start & idle, stalling

SES codes-
P0300 (random misfire) x2
P1864(torque converter clutch circuit)

Rough start and idle-

Stalled out at hwy speeds last Fri. Waited 20 min for restart, then drove home 8 mi. Rough start and idle with restart. Never done any of this before. Threw SES light . Since than changed rad/ thermo/ up+low rad hoses (cracked rad), and all vac lines. This is my daily d and i need help asap. Anybody?

Could be a lot of things, but I would pick up a fuel pressure gauge on a hunch... check your fuel pressure. If the pump is going out you could be seeing these things.

I don't expect any of the things you did to the cooling system to have any effect on a random shutting down/rough running situation.

Thank you... will visually check spark plugs/ wires/ coils, I should have an extra set of everything laying around. Once part store opens.. Fuel Pressure gauge

I hate P0300 code. It could be ANYTHING throwing that code. Like the deekster said, check around all your plug wires, coils, yada yada. Vacuum leaks can cause P0300, bad fuel can cause P0300, a little corrosion on a wire can cause P0300. Checking the fuel pressure as well (like deek said) is a great idea. If the pump for some reason isn't supplying the proper amount of fuel it can set a P0300.

As for the P1864 TCC circuit....you just changed the radiator right? The TCC circuit on your '96 is powered by the Cooling Fan fuse in the Instrument Panel distribution block. It should be labeled CLNG FAN and is a 10A fuse (red I believe). I would check to make sure the fuse isn't blown for some reason.

Okay thanks will check that fuse as well, if it ever stops raining here... trying to come out of our 7 year drought and it has rained at least once a week it seems like this whole year. Good for our Landscape business bad for my car situation as I dont have a garage to work in.

TCC and ABS light were on before the rad swap.
Went to uplug the neg on batt. and my pos terminal was broken off. Still making contact but the nut was broken. Picked up new terminal and will post back soon. RAIN RAIN GO AWAY..... COME BACK ANOTHER WEEKEND!! (or during the week.. time off from work!!)

Well now, a busted post on the battery will cause ALLLL KINDS of problems....

The day it stalled i had 3 pass in the back seat, i bet the combination of the weight and seat not being on properly snapped the terminal right off.

Ummm, yeah. Breaking a battery post on the Riv will absolutely shut the car off. When my battery post broke, it blacked out the whole car....nothing. Just sayin.....

WOW!! Now I have a freakin leak in the ceiling here at my apt. GREAT!!

96rivie wrote:

WOW!! Now I have a freakin leak in the ceiling here at my apt. GREAT!!

don't worry, it means good luck is on the way.

not the the battery post! I started er up and let er run. Coolant/ oil coming from gasket right under the coolant elbow also the closest injector has a puddle behind it. I cant tell if its dirty water/ coolant or if its oil

dont want to buy anything else if i dont have too, I have the LIM gasket set already

Check your voltage at the battery with the engine off and the engine running. Report back.

12.3 off, 14.9 to 15.1 on

starting to lean toward LIM..?

buy the metal coolant elbows! one probable source of leak. careful replacing them tho mine led to me replacing tensioner and water pump

I have done the plastic elbow already, and its not leaking from the elbow but right underneath it about an inch or so down...

Put OEM Coils back on and checked spark plug wires and they are fine, I still need to check the plugs to be sure

plugs looked like they could be changed i guess..? not too much carbon built up, less than 10,000 miles...still have my overheating issue and ses light. I'm hoping  new plugs and a new thermostat will solve

I just cant tell if that puddle i see behind that injector is getting bigger with the car on.

Try solving one problem at a time. Still need to check fuel pressure.

what should it be at? any ideas on a gauge i should get?

I needed to build one a few years back. Here's a thread with the info:

https://rivperformance.editboard.com/t3352-testing-fuel-pressure-spark-chasing-kr

AA wrote:

Try solving one problem at a time.

...probably the best general advice ever. I know I sometimes overcomplicate, confuse or overspend the issue by tackling too many variables at once in my impatience to solve the problem. Methodical testing and observation can be time consuming, but always produces better results and often helps with future troubleshooting.

My grandfather, a machinist instructor and retired military, taught me that rule. It seems obvious, but we so often take it for granted. It's the main reason I'm adamant about threads staying focused on the issue at hand. I'd rather see one problem get solved, than attempt to fix 5 things not relating to each other.

It's too difficult in our ADD society to focus on any one going to the Riv meet in Lexington or what?! COME ON!! LETS DO THIS!

i can see and smell oil it seems like its coming from the headers maybe.. right underneath..

96rivie wrote:

i can see and smell oil it seems like its coming from the headers maybe.. right underneath..

Wash your engine... you can use Gunk (basically kerosene) or a surfactant. Use a brush and rags or what have you and get it clean. So you can see if the oil is seeping or running out over time or if there is some kind of pressure propelling it.

Also check the oil pressure sending unit, make sure it's not leaking (it probably is not).

96rivie wrote:

i can see and smell oil it seems like its coming from the headers maybe.. right underneath..

Could be leaking from the valve cover gaskets. But as mentioned, clean everything, then look for the source.