the speedometer in my car goes out sometimes if its hot in the summer and im parked in the sun for awhile like if im at work or something when i go to leave work the speedometer wont work but after my car cools down the speedometer will start working again in the winter time when i have my heater on for awhile like when im driving for awhile my speedometer will go out and i will have to stop if possible and turn off my car and wait for the speedometer to work again i have no idea why it stops working when my car is hot or whatever because my car doesnt over heat it did one time cuz of a hose but got that fixed no prob after that with over heating but my speedometer still goes out if anybody knows what might be the problem or what i can do to fix it pease let me know its been doing this for a long time that my car has been doing this.