UIM/LIM, Head Gasket or Balancer
So last week, the heater hose blew on my '99 Bonneville SLE... the person driving claimed they killed it immediately. It got fixed...
This weekend, my mother is driving the car, and hears "something fall off"... then the car no longer was running smoothly.
I figured the rubber shot out of the harmonic balancer. I examined the balancer... and it looks OK... though, I'm not completely sure what I am looking for... I'm used to Chevy 350 style balancers...
So as I'm watching, the engine is definately not running smoothly... then it suddenly smooths out. So, its a misfire, I think... I check out the exhaust, and sure enough... white smoke. Looking in the radiator, its much lower than the other day.
Now, I know I've had a UIM/LIM problem for some time, it was limited to seepage, so I could not get it on my agenda to repair it.
So, I'm trying to figure what'* wrong.
The oil is not milky... I couldn't look for air bubbles or oil in the radiator, but I figured the UIM/LIM might case that as well.
I imagine my UIM/LIM gasket went. However, I do not want to fix that, only to discover the head gasket is shot. Is there a good, definitive way to test the head gaskets?
I was thinking of getting a spark plug adapter for my air compressor. I figured if I brought up each cylinder to TDC on the firing stroke, I could pressurize the combustion chamber... and I would see major air in the radiator. Would that work?
Thanks in advance.