Why does my 1999 voyager engine run hot when idle?
Either your fans aren't working or the thermostat is stuck closed.
What is the typical oil pressure of a 100000 mile motor in an l69 305 at idle and what oil should you use Thank you?
Your idle control valve may cause this.It is located under the front of throttle body.It is a thermostatic control device.Water passes through and heats up thermostat and closes air passage and idles engine down.You can touch the ICV when engine is hot and it should also be hot since hot water flows through it.Sometimes a flow restriction may be the promblem, if it is not hot when engine is hot you have a flow promblem…
The reservoir has two level lines - one for "cold engine" and the other for "hot engine". If the engine is hot, and the coolant level is low, fill the reservoir to the "hot engine" level. When the engine is cold and the level is low, I usually" top off" the radiator and fill the reservoir to the "cold engine" level.
the solution can depend on the year and induction type. usually too high an idle speed and rich idle mixture combine to allow a hot carbon chunk in the cylinder to ignite the mix and cause the dieseling. on injected engine its far less common but leaky injectors have been known to cause the condition also