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#1
03-03-2026, 06:57 PM
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2009 Malibu coolant problems
Friend of mine has a 09 Malibu, 2.4 L engine, losing pint of coolant in 30 miles! Pulled plugs, cylinders are dry. No leaks on ground. Crankcase oil is "milky". Head gasket or water pump are usual suspects, anything else he should consider (other than buying a used Pontiac) ?
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#2
03-03-2026, 08:31 PM
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The 2.4 ecotech's are known for water pump failures, but it is not a 5 minute job as the waterpump is run by the timing chain and requires the use of a keeper tool, and if it were my car I would plan on changing the timing chain and guides at the same time as it isn't that much more work. It's a weekend job if you do it yourself, a shop will charge $1200-2500 depending on your location for the job, plus parts.
Do you see any external leakage? A head gasket or cracked head is possible also. How many miles on the car?
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#3
03-04-2026, 01:45 PM
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Thanks for your reply, I'll pass along the info.........
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#4
03-04-2026, 01:46 PM
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....and no water on ground, I'll find out how may miles it has rung up
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#5
03-04-2026, 03:18 PM
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135K
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#6
04-12-2026, 08:24 PM
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Quote:
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#7
04-13-2026, 08:10 AM
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What engine?
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