You may have a injector problem. If it is a 4.3L engine it is not uncommon for a fuel injector to fail. Try to locate which cylinder is not firing. You can pull the plug wire off of the spark plugs one at a time until you reach one that doesn't change engine rpm's.
check spark plugs and wires
I need more information about year, make, engine size.
No. Spark plugs have nothing to do with your turn signals. Try changing the turn signal bulbs. Spark plugs are only used for the combustion of the engine.
When changing spark plugs it is important to know their location under the hood of the car. For a Toyota Rav4 the spark plugs are under the engine cover that has the car symbol on it.
you rotate the engine to get to the rear plugs but the front ones are easy to replace
Possible wrong heat range of plug. Make sure you have the right plugs for the vehicle.
No
they could be bad spark plugs as in not a very good brand. or maybe you didn't put the wires back on the right spark plug.
The 2006 Toyota Tacoma V-6 engine spark plugs can be removed with a 5/8 deep well socket. Turn the socket to the left to remove the spark plugs.
try changing the spark plugs
try changing the spark plug wires also
carburetor or spark plugs