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164LS noise / water heater leak

734 Views 1 Reply 2 Participants Last post by  john.harrill
On my 1994 164LS I've got a noise coming from the front of the engine that sounds kind of like a loose timing belt cover. Starts at idle like a buzz or rattle and then goes away when you get above 3000 rpm. I've got all new tiing components up front and also new water pump so I don't think it is those.

Also, was testing the AC and had a coolant leak develop somewhere behind between the engine and firewall causing steam like vapor to come out the top of the firewall area and also through the AC vents. I suspect a blown water heater hose or blown heater itself.

Any suggestions on eithe rof these items?
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Seek and Ye Shall Find.

Do a search on idler bearings and water pump replacement.

As for the leak: search on "heater core". The are terrific posts (with pics) on heater hose/core replacement.
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