Question about 1998 Chevrolet K1500

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Electrical??? my truck will start and run but when it is running if i increase the electric load too much (fan on high, head lights, radio) and try to use the turning signal or wipers my radio dies out then comes back? i left the truck over night and the battery was dead. Could i have a short? or bad alternater? any suggestions where to start would be great

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Bad ground to motor or chassis

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Electric Power Management
The vehicle has Electric Power Management (EPM) that estimates the battery's temperature and state of charge. It then adjusts the voltage for best performance and extended life of the battery.
When the battery's state of charge is low, the voltage is raised slightly to quickly bring the charge back up. When the state of charge is high, the voltage is lowered slightly to prevent overcharging. If the vehicle has a voltmeter gage or a voltage display on the Driver Information Center (DIC), you may see the voltage move up or down. This is normal. If there is a problem, an alert will be displayed.
The battery can be discharged at idle if the electrical loads are very high. This is true for all vehicles. This is because the generator (alternator) may not be spinning fast enough at idle to produce all the power that is needed for very high electrical loads.
A high electrical load occurs when several of the following are on: headlamps, high beams, fog lamps, rear window defogger, climate control fan at high speed, heated seats, engine cooling fans, trailer loads, and loads plugged into accessory power outlets.
EPM works to prevent excessive discharge of the battery. It does this by balancing the generator's output and the vehicle's electrical needs. It can increase engine idle speed to generate more power, whenever needed. It can temporarily reduce the power demands of some accessories.
Normally, these actions occur in steps or levels, without being noticeable. In rare cases at the highest levels of corrective action, this action may be noticeable to the driver. If so, a Driver Information Center (DIC) message might be displayed, such as BATTERY SAVER ACTIVE, BATTERY VOLTAGE LOW, or LOW BATTERY. If this message is displayed, it is recommended that the driver reduce the electrical loads as much as possible. See DIC Warnings and Messages.

Dec 28, 2015 | 2008 Chevrolet Chevrolet HHR LT

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Jeep still runs hot after new everything any suggestions

Air in system, inaccurate temp sender, hair line head gasket failure, weak fan clutch or electric fan inop. , external air flow restriction, rad cap not holding pressure, radiator restricted internally, restricted cat. converter, transmission overheating, excessive load in tow , timing too far advanced, lean air/fuel mix, high alcohol content in fuel. That's all I got.

Dec 29, 2013 | Cars & Trucks

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Unless you are in the Artic, there is little need to change thermostats. Once Pollution controls were invented the operating temperature of engines were raised to about 195 degrees on average.

In the old days, thermostats were as low as 165 degrees and I believe as high as 210 degrees.

In the old days, you did not have Automatic Electric radiator cooling fans to supplement the water system. If you were to increase todays thermostats by too high of a margin, the Electric cooling fans would run almostt constantly.

Please rate my info.

Nov 14, 2012 | 2001 GMC Jimmy

1 Answer

My 02 Camry v6' battery was removed for 30 min and put back on - good battery. Engine starts no problem but stalls at idle. No error code. Is a computer-code reload or IAC cleaning ? Seems the car computer...

idle learn procedure:

turn off all electrical items (AC fan, audio, lights, defogger, etc.)
Start the engine and hold it at 3,000 rpm with no load (in park or Neutral) until the radiator fan comes on or the engine coolant gauge shows normal running temp.

Now let the engine idle for a minimum of 5 mins with no electrical loads. If the radiator fan cycles on during this time, you must add the fan running time to the 5 mins.

Feb 10, 2011 | 2000 Toyota Camry Solara

1 Answer

I have a 97 sable gs 3.0lt v6 i changed the plus and wires all o2 sensors the mass air flow sensor the air temp sensor the evap the computer it service every 5000 kilometers and the past couple of days i...

Many auto parts stores can do a load test on your electrical system. This would give you a good idea if your alternator is doing what it should be doing. It does sound like it is losing charge when system demand is high, but even if the alternator is not putting out much at high demand, the battery should pick up the slack in the short run. I would have both of them load tested.

Nov 13, 2010 | 1997 Mercury Sable

2 Answers

At what temperture should the electric fan start and how is it controlled

computer controlled , should come on around 225 degrees. You will need a scanner to see what the PCM is seeing.

Nov 02, 2009 | 1998 Jeep Grand Cherokee

1 Answer

106 w reg electric problem

if you changed the sensors on the head , then the fan temp sending unit on the fan assembly is faulty. it's sending a false reading to the computer therefore keeping the fans running replace this and the proble will be resolved

Apr 20, 2009 | Peugeot 405 Cars & Trucks

1 Answer

Electric radiator fan won't come on when engine gets hot

By pass it. remove wires from fan leaving enough wire to splice onto.Run 2 wires 1 to ground and 1 to a power source in fuse panel that only has power when ignition is on such as running lights . this by passes fuses and relays and assures your fan is running if your vehicle is running.

Apr 20, 2009 | 1998 Dodge Caravan

1 Answer

Engine idling varies depending on light or aircon is on/off

dude its normal for first start or cold start that the idle is ok but it must high than normal... its normal because the engine is warming up it self... when it gets warm, the idle speed will return normal idle... your engine is 1200cc, it has not much HP for a great load... and i know its a carburatored engine and its an old engine, your head lyt and a/c fan and aux fan and all the electrical system on your car, uses the HP of you engine and its a lot of load to the alternator driven by the engine to generate an electricity they need and thats why the engine rpm speed lowering down to dead and its shake. thats why when you use your lyts or all electrical, you engine is weakening... the best remede is adjusting you idle speed... its located behind the carburator.. its a small black knob.. just make a twist each eighter way and you'll find out if your idle rpm speed ts incresing or decresing.. just increase it and try opening your lyts and other electrical, if its still shaking then adjust it a little more

Aug 26, 2008 | 1994 Honda Civic

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