Question about Cars & Trucks
Orver heats in gear when driving + voltage from alternator low and drops when driving + stuck in passing gear won't shift All problems started around same time. It is not the thermostat, water pump, transmission fluid or filter, not the battery or alternator. what could it be?
The first step is to see if the gauge are correct,low voltage can cause many problems, the first step is to make sure the coolant is full so check radiator, this is done when cold, if full then start the engine with a meter on the battery and watch the voltage, have someone put it into drive while holding brake. if voltage on meter starts to drop then give a little gas to rev engine and see if voltage goes up, if it does then you may have to low an idle but if the idle is ok then alternator is bad. also have the battery tested to make sure its good, just because it starts the truck does not mean its good. the next thing is to look at the overheating problem. if the cooling system is full and it runs hot then that must be looked at,when the truck is starting to overheat we assume it is due to gauge, but this sounds like it may be low coolant or low voltage or idle is to low because when you put it in park it drops. start with these checks and let me know the results. good day.
Posted on Feb 19, 2012
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Posted on Jan 02, 2017
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