While running. Pull one spark plug wire off the distributor cap, one at a time and replace. Make note of rpm drop for each cylinder. If one cylinder does not drop rpms when off distributor cap, then that is your issue.
Loosen plug wires first and use a wood tool with right hand to reduce shock hazzard. Keep rest of body off car.
Good luck and may all your cylinders fire.
On Fri, Mar 14, 2025, 11:59 PM Rhonda CARDINAL via <jwcardinal=
[email protected]> wrote:
My 1993 Dolphin with a 3.0 V6 automatic transmission always overheats on hills. Anytime we are climbing a hill it gets too warm, going downhill it cools off again.? It also heats up when you are pushing the engine, going fast on level ground, even on cool day.
The gauge is nudging the red zone. So far, I have replaced the three-row radiator, the thermostat and the fan clutch.? I've even removed the front license plate. It was blocking a small air supply slot in the bumper. None of this has helped.? When I replaced
the thermostat, I expected sludge, but the port and the thermostat was clean as a whistle. I intend to flush the system, but it seems very clean already.? I'm contemplating replacing the water pump (huge job). The pump doesn't leak, and the bearing seems sound
(no play). Is this a common problem with the V6 engines or am I missing something? Has anyone else had this problem and if so, how did you solve it?
Jeff Cardinal
