95 v6 issues. ?
 

Hello,New here. I am having issues with my engine running poorly,like it's missing or possibly like a vacuum leak ,along with stock fan setup not working. Brought in for oil change,and a short time after,gauges started working erratically,fan stopped coming on and engine lacks power big time! Shudders as if it was misfiring,although New plugs and wires just installed. A friend mentioned a temp sensor ? I'm stumped, any ideas would be greatly appreciated

Did they put oil back in it?

Is the engine overheating? That's a real possibility if the fan's not coming on. Check the ECT sensor resistance using the attached chart.

You mentioned erratic gauges, but which gauges are acting up? Are they reading incorrectly, or are they indicating a real problem?

All gauges were doing that? Check for a loose instrument cluster ground.

I think the gauges were acting weird because of something else ? They work correctly now,but we're acting weird. Now fan not coming on and engine runs like it's missing or something. New air filter in,I cleaned the maf with spray cleaner,installed New wires and plugs,however,engine still runs like there is a major vac leak,however I don't find one? Any sensors or connections that might cause this condition ?
thanks

Did you check the ECT sensor yet?

If the gauges start acting up again, you're going to have to be more specific about which ones are acting up and what they're doing when that happens. So far, it sounds like there's a loose ground, which just happens to be making a good enough connection at the moment in order to work.

Gauges were acting weird and reading erratically,I believe due to how cold it was at the time . It was happening at the time the real issue started,which is engine running poorly and fan not coming on. I assumed that the gauges were acting weird due to whatever the real issue at hand is,because the temp gauge is reading high,but now know tho is due to the fan not coming on. So, I guess what I need to know is , is there a sensor or something that could be responsible for the fan not working, and,causing the engine to run poorly ?
thanks

Did. You. Check. The. ECT. Sensor. Yet?

95 3.8 etc idsue
 

Ok, I have changed the ect sensor last week and no change. Fan still wouldn't come on and engine runs like ****. Was told to try another one as many new parts are bad ? Ok,so today I exchanged it out with another one. I also disconnected the pos battery cable for 30 sec. Started the car and it was hard to stary,stumbled some and then settled out a bit, then ran scrappy again,I disconnected the wires to the vet while it was running and then the fan came on ? Reconnected it and fan goes off ? Did this 5 times and every time it's disconnected the fan comes on,connect and fan goes off. Temp went about 3\4 way and I turned it off. WTF !
Any ideas ? Thanks again