Quote:
Originally Posted by teddavies
ok more clues:
when i turn it off for a short time-- less problem
when i turn it off for like 30 minutes- bigger problem
after a "long" stop- it makes squeaking sqwuaking noises under the hood and last time the check engine light flashed...
i turned it off, started it back up- got it up to freeway speeds and it ran like perfect.
the reservoir "boils" as its running....like it's
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Oh, yea, you got a cracked head or blown head gasket. the squacking noise is the cylinder trying to compress a liquid, mostly, it has to get by the rings and would make a slow crank with the associated wheeze! The water in the cylinder can also bend a rod so you may want to cease and desist starting this engine.
If you dare, have someone crank it up WHILE you watch the tailpipe for water discharge. You really should be finding some water in the crankcase now. And the underside of the oil filler cap will have that whitish oil/water emulsion.
You could borrow a radiator presure tester for Autozone, or ? and pressure test the system with the spark plugs out. If the pressure goes down, then crank the engine to see which side is bad. Water will blow out a plug hole and you won't bend any rods.
NOTE: if this is a 98-99 era ML, the factory warranty was supposed to be extended to 150,000 miles and you might still be covered.
Jim in Phoenix