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Do you mean that the heater will not shut down either by turning the thermostat down or turning the switch off. If turning the pump off will not shut down the heater it could possibly be one of the high limits or the gas valve has failed in the open position.

If the heater will not fire when calling for heat then one or more components has failed.

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92 Astro van dies without warning you have replaced the ignition coil and the cgr valve Had the fuel pump checked and it has good pressure you are at a loss?

Check the temperature sender. not the sensor, the sender. the sender goes from the thermostat to the computer. They have been know to prevent vehicles from running. I second that.


Your 1993 F150 is over heating you replaced the water pump thermostat and got it flushed and it is still over heating what can it be?

check the fan clutch


How do you replace headlight lamp on 2004 Chevy Venture?

Hi,The headlamp bulb is relatively easy to replace in these vans. What you have to do is remove the turn signal assembly first, and then the headlamp assembly. This is done by removing 3 wing nuts that hold the assemblies in, and then pulling the turn signal assembly straight out, followed by the headlamp assembly. The headlamp assembly has to be lifted UP and then Out.Once you have the assembly out, the headlight bulb can be unscrewed from the back of the assembly and replaced. Be careful not to get any oil from your fingers on the new bulb, as that will heat up when the light is on and decrease the lifetime of the bulb.I have included a link below that shows pictures of the assemblies and how to removed them.Take Care, Greg


If your 93 Chevy is still overheating after you have replaced the thermostat what should you check next?

Has the rad ever been flushed? Try that if there is no indication of water pump failure (leaking or venting coolant from pump.)


If you already replaced the radiator fan but it is not switching on does that mean the thermostat is the next place to look?

if your thermostat was bad your engine will over heat but it has nothing to do with the fan,fans are driven by a diffrent mechanism. try checking your thermostatic switch/ heat sensitive switch or sensor, located somewhere in the cooling system(radiator,engine block or thermostat housing) which is the one that tells the fan when to come on.(only electric fans)it may be faulty wiring

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