I have checked the ABS sensor a while back and now the speedometer is not working and it completely went off. Not sure what the problem is. Please help me with that. Thanks

Goes up and down. Car has 239k and is ready to go in for 3k oil change.

Currently my car`s check engine light is ON. It actually comes and goes. But whenever check engine light is ON, coolant temperature reading showing nothing (It shows dashes).
Sometimes same thing happens for tire pressure readings too, it shows dashes for tire pressure but at light time it does not show check engine light ON.
What could be the probably cause for it?
Do I need to change coolant or thermostat or anything else?

It will overheat within a few mins if driving, sitting it will overheat within 15-20 mins. I have replaced the thermostat. I don't see any leaks

My heater blows cold air when I turn on the heater

Roof Drain was stopped up and water was in floor. Unstopped drain and removed water. Now, sloshing water in frame. How do I remove this water? Is there a plug?

Check engine light comes on and off. It will crank up and go dead and ECM has what looks like oil in it

I would be driving and when I press the excelerator for more power and speed , the car started missing , and sometimes goes into a limp mode , and inside the information message center it would state RESTRICTED PERFORMANCE. And when I stop it would shut down , or if taking a slow corner , or backing up .???

When you turn the key on and off three times check engine code 1255

anybody else notice this?

The sound or drop in engine rpms doesn't happen on idle only under load. The noise sounds like a muffled grinding, maybe, but when it on the cars jerks really bad and revs drop low. If I release the gas pedal it stops and the car just cruises. I changed the spark plugged and the air intake, new air filter and ran injector cleaner in the fuel system. The oil level is good in transmission and engine. A mechanic suggested a misfire but there is no check engine light on, pluss it doesn't happen on idle. So far it seems to do it soon after starting to drive the car. I started the engine and let it worm up, drive in my subdivision for aprox 3 minutes and the noise and shaking was very bad but then subsided. It will still do it but not as bad while driving to work. One option is to drive it until it breaks down completely but I would prefer not to waste my money on a tow truck or unneeded repairs because this was not treated in time. Any advice is greatly appreciated. By the way, a friend connected a computer to the engine to see if there are any codes but none showed up.

2001 Grand Caravan, Sport Edition, 3.3

I notice a service engine sign blinking on my dash board and I use a code scanner which showed code (P0446),I met a dealer which fixed the canister purge valve with new one but after the second day, the sign was still showing with the code (P0446).
please what do you suggest will be the problem, after I have changed the purge valve with new.?

should i flush it all? or partially?..tks for your help

What does the crankcase sensor look like