Farley`s Dodge Diplomat Forum
Forum Index => The Library => Topic started by: Reggie on December 26, 2007, 15:45:46
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Causes of Overheating
Car overheating? The usual suspects are:
- Insufficient coolant - possibly due to a leak somewhere
- Air in the cooling system
- Leaking head gasket
- Leaking intake gasket
- Improper coolant mix (should usually be 50/50)
- Contaminated coolant (rust or oil)
- Bad radiator cap
- Bad thermostat
- Clogged radiator
- Clogged block water jackets (engine needs to be flushed)
- Bad hoses or no spring in hoses (they can collapse and restrict coolant flow)
- Loose fan belt
- Defective clutch fan (allows excessive fan freewheeling)
- Bad water pump
- Missing fan shroud
- Exhaust system blockage - clogged muffler,cat or pre-cat
- Incorrect ignition timing
- Lean air/fuel mixture
- Fan too far away from radiator - should be within a couple inches away
- If air conditioning - dirt, leaves or trash in A/C condensor
- Cracked head
- Cracked block
Always check the easy stuff first.
Source: Compiled from posts on Farley's Forum and other boards.