The dials on my dash board will fall sometimes while I am driving, but will come back up after I tap on it, or they wont come up when I turn the car on until I tap on it. How do I fix this?

Check the ignition wire under dash first to see if it gets power. If not then wiggle key while in ignition. Sometimes they go bad. Also check fuses.

The hot water tap in the heater core inlet is not opening. The most common cause is a broken or loose connection between the operating cable and the tap, or, at the back of the control dial on the dash.

Locate this tap on the hot water hose going through the firewall, and have someone operate the control dial inside. You will be able to see if the cable moves and if the connection clamp is loose.

If there is no movement the cable is probably broken.

if you crawl under the vehicle and tap on it while someone is turning the key sometimes that works they get stuck occasionally

Start simple, replace the dial as they often break on the back and wont turn the actuator when you turn the dial (like a broken doorknob). If its still a problem, then it gets complicated as you'd need to dig into the dash.

sounds like you have a grounding issue possibly a main grounding location. inconsistant grounding of the vehicles control module will cause erratic behaviours. check under the hood for ground locations containing multiple grounds at 1 bolt location.if different "experts" have attempted repair and failed chances are they are all looking in the wrong place.dash{interior of vehicle}..actual cause.{egine compartment or under side of vehicle..ie...ground locations.}good luck and safe motoring:>

Hi Deede
Sorry about your car.

When the lock fails, it's usually because it's not reading the key correctly. Obviously, try another key first. If that doesn't work, try spraying some WD40 inside the lock, not a lot, just enough to lubricate the tumblers. Then, gently (as if your thumb were in the way), tap the key with a hammer driving it deeper in the lock while you attempt to turn it. Do this repeatedly in fast succession without breaking the key...tap, tap, tap, tap, tap all the while trying to turn the lock and key.
If that does not work, then here is a link to instructions for step by step replacement from www.steeringcolumnservices.com

Good luck
Doug

Need to check all the battery cable connections to ensure they are clean and tight. If this does not solve the issue, the starter may be bad. Have someone try to start the car while you tap on starter with a hammer. Sometimes, that will free up the starter drive and start the car. Tap firmly, but not with excessive force.

This sounds like a hot fuel pump issue. The pump is getting hot on the circuit and is cutting out.

no,maybe dirty fuel filter.tap on it some times that works there like 20 dollars easy to replace

back box behind the ign switch is a common thing that gos giveing a mixture or problems to do with lights on dash even starting