you need an alternator
Yes, it could.
Yes, the ignition on a trailblazer can cause head lights to work improperly.
engine coolant getting into an engine cylinder from a bad head gasket , cracked or warped head
no the higher milage or higher rpms can cause the head bolts to stretch which would cause it to blow
head lights won't work, no power to them, signal works , reverse lights work
On a 1999 GEO Tracker, a bad fuse can cause the headlights and dash lights to blink. A bad voltage regulator or alternator can also cause lights to blink and flicker.
cracked head or bad gasket
bad head gasket , warped or cracked head
well if its your head lights it maybe your DRL
cause the head lights r one the head of the car, the front and the taillights are on the back of the car also known as the tails
Probably not, although it could lead to other problems which would cause your car not to start.
Water in engine-head gasket most likely.
Did you check for a blown fuse? Look for one marked TAIL LIGHTS. This is the one that would affect that would affect the tail lights and license plate light.
loose head light switch
Head gasket failing The most common cause is a blown head gasket. Stop driving the car as severe engine damage will occur.
If the service light comes on it usually mean there is maintenance needed to be done elsewhere than the engine. Try making sure all your lights work including break lights, turn signals head lights, parking lights, etc.
sometimes the head lights and tail lights may be fused separately,check your fuses.you could have a bad ground.thats just two places to start.
probably a blown head gasket if the oil looks milky or has bubbles in it
On my 2004 Modus the lights automatically go out as you open the drivers door.
I blown head gasket can cause an engine miss which one cause a rough idle.
Engine overheated, head was warped, cracked, or not trued or replaced, head bolts were torqued out of sequence or too loose or too tight.
A blow to the head would cause swelling.