Water pump cracked on suv and overheated, stuck head

SOURCE: 94 isuzu trooper turn key fuel pump runs for 2sec.and shuts off?

Can you hear a click during that 2 secounds? Thats the relay shutting off the pump just what its suppost to do. The pump does not run contenuosly, if it did it would burn up, thats what the relay is for, it kicks on and off to maintain the correct pressure to engine as needed. It will not turn back on until it resets itself because engine was not running, thats the way there designed.

SOURCE: 1996 Rodeo overheating

Check to see if there is water in the oil...If there is water in the oil then it could have a head gasket problem..Did you ever replace the thermostat? If it is stuck then it would also cause overheating...Excessive exhaust backpressure because of a clogged catalytic converter could also cause overheating..Also check belt tension and condition. A loose belt that slips may prevent the water pump from circulating coolant fast enough and/or the fan from turning fast for proper cooling...Another thing it could be is a faulty Water pump -- Any wobble in the pump shaft or seepage would call for replacement. In some instances, a pump can cause an engine to overheat if the impeller vanes are badly eroded due to corrosion or if the impeller has come loose from the shaft. The wrong pump may also cause an engine to overheat. Some engines with serpentine drive belts require a special water pump that turns in the opposite direction of those used on the same engine with ordinary V-belts... Also check the Fan -- With mechanical fans, most overheating problems are caused by a faulty fan clutch, though a missing fan shroud can reduce the fan's cooling effectiveness by as much as 50% (depending on the fan's distance from the radiator) which may be enough to cause the engine to overheat in hot weather or when working hard.

SOURCE: Trooper Overheating

Your radiator efficiency has been reduced by (what is called) blossoming. Blossoming is electrolytic growth of crystals inside radiator duct passages. This typically occurs in the older Troops as gradual overheating probs cause the vehicle to run low on coolant, then water is being used to top off system repeatedly, acid levels in cooling system rise as the coolant protectants degrade and the inside of the radiator ducts 'blossom' with small crystalline growths that reduce the radiators flow and ability to cool the engine. Flushing and blowing out the radiator are temporary fixes. Replacing the radiator is the permanent fix. You did the right thing by replacing the water pump, tstat and radiator cap. An old, original water pump usually fails soon after the radiator is replaced. New Trooper radiators are fairly cheap, $85+. The replacement can be done by any backyard mechanic or DIYer in under and hour. You know the typical warnings about the toxicity of antifreeze and the deadly affects on pets who drink improperly disposed coolant. Good luck to you. It's an easy remove and replace. Your Trooper will thank you with many cool running miles. -Geoff

SOURCE: My 1999 isuzu rodeo wont start.

check all your connections to your alternator,starter and your battery But you you are hearing the starter "click" but not engage..try tapping on the starter with a hammer if it is easy to get to..this some and sometimes does work..but your starter solenoid can be bad..the starter can be bad..igntion module a number of possibilities..goto your local parts store or public library and purchase a repair manual or check one out at the library

SOURCE: 1991 Isuzu Trooper. Recently my truck simply

Disconnect the fuel line at the fuel filter. Turn the car on for the pump to be on. If you are getting gas pumped out, then your pump is good. If not there's most likely your problem. Then try the line at the engine. Disconnect and see if the gas is making it that far. Your should also be able to hear the pump come on if you open the gas cap and listen while someone turns the key to the on position.