2004 Dodge Truck high idling over 2000 rpm

2004 DODGE TRUCK
45,000 MILES • 6 CYL • 2WD • MANUAL
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CENDERA
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my engine is idling high at 200 rpm.
Dec 13, 2007 at 4:53 PM
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RASMATAZ
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Have it block and pressure tested-do the block first to pinpoint a combustion leaking into the cooling system or a gas analyzer to sniff for hydrocarbons at the radiator fill neck.

Pressure test: do not do a pressure test if there's leakage at the headgasket this might cause coolant into the cylinders and lock it up or bend a connecting rod if cranked thereafter. The headgasket should be repaired before doing the pressure test.

If the block and pressure test passes check the following: Thermostat,Pressure test the Rad. cap,Clogged radiator,Fan clutch,Radiator electrical fan,collaspe hoses,water pump.
Oct 26, 2007 at 4:14 PM