Question about 2003 Chevrolet Silverado 1500

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Why is my 2003 chevrolet silverado 1500 overheating

Replaced the water pump, thermostat and fan clutch.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

emissionwiz
  • 75744 Answers

SOURCE: 1999 Chevrolet Silverado 1500 Fuel Pump

check the connector to the fuel pump for corrosion or loose pins, the fuel pumps of newer cars and trucks are designed to last at least 100,000 miles, when the new pumps quit did u verify they had power to them?

Posted on Mar 09, 2009

mcgyver468
  • 710 Answers

SOURCE: where is the fuel pump shutoff switch located on a 1996 chevy silverado 1500 located

Should be on the passenger side kickplate below the glovebox and to the right. You may have to remove the plastic panel to access it or look for a small hole in it and feel around for the button

Posted on Apr 23, 2009

  • 1244 Answers

SOURCE: No heat on 1996 Chevy Silverado 1500

reverse the heater hoses and drive it for a cpouple of days your heater core is plugged and by reverseing them you can back flush the heater core after 2-3 days reverse them again

Posted on Jan 18, 2010

  • 2 Answers

SOURCE: heater fan not working . changed fuse and nothing Silverado 1500

Look for a vacuum leak

Posted on Feb 27, 2010

ZJLimited
  • 17970 Answers

SOURCE: 2003 chevrolet silverado v8 1500 with code 430

P0430 - Catalyst System Efficiency Below Threshold (Bank 2)

Basically this means that the oxygen sensor downstream of the catalytic converter on bank 2 is detecting that the converter is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.

Symptoms: You will likely not notice any drivability problems, although there may be symptoms such as a rough/hard idle when cold.

Causes: A code P0430 may mean that one or more of the following has happened:

* The catalytic converter is no longer functioning properly
* An oxygen sensor is not reading (functioning) properly
* There is an exhaust leak

Possible Solutions: First, inspect for exhaust leaks.

Next step is to measure the voltage at the oxygen sensor on Bank 2. In fact, it would be a good idea to test each oxygen O2 sensor while you're at it.

One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper-to-bumper warranty, there still may be warranty on this type of problem. Many manufacturers give a five year, unlimited mileage warranty on these items. It's worth checking into.

Hope helps (remember to rate this answer).

Posted on Oct 09, 2010

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1 Answer

Overheating when driving


Sounds like the water pump fins aren't doing their job. I suggest changing the water pump. Been there, done that. Bad pump.

Feb 28, 2012 | 1999 Chevrolet Silverado 1500

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2003 chev. silverado During extreme temps the


I WOULD SUGGEST A NEW RADIATOR ..NOT PROPER FLOW WILL CAUSE THAT.MAKE SURE YOU HAVE FRESH ANTI FREEZE.

Aug 08, 2011 | 2003 Chevrolet Silverado 1500

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My trailblazer keeps overheating and I'm not sure why. I have already replaced the radiator, water pump, thermostat, and clutch fan. Is there anything else I can do?


There may be an obstruction in one of the hoses, there may be an air pocket in the system somewhere.
Are you sure there is actually an overheating going on? Maybe it's a bad temperature sensor or temperature gauge stepper motor.

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97 silverado 4x4 overheating,waterpump visually looks ok


Check coolant level, fan clutch and thermostat, these are good water pumps. if bad, water will leak out.

Jul 24, 2010 | 1997 Chevrolet K1500

1 Answer

Change water pump


1 disconect neg.battery cable 2 drain the cooling system 3 remove air intake tube from filter housing to throttle body 4 remove top half of fan shroud 5 remove the serpentine belt 6 use a strap wrench to prevent the waterpump pulley from turning while turning the fan clutch in the counterclockwise direction. 7 remove fan and set aside 8 remove belt tensioner 9 remove hoses from water pump 10 remove 6 bolts, 3 on either side and remove the water pump. 11 remove the thermostat housing from the old pump and install on the new one. 12 re assemble in reverse order. make sure the mating surface of the engine block where the pump bolts on is clean and free of old gasket material before installing new pump and gaskets. When assembled fill cooling system, start engine and let idle untill thermostat opens and engine reaches operating temp.KEEP WATER LEVEL FULL. After a test drive recheck the coolant level, and you are done.

Mar 14, 2010 | 2000 Chevrolet Silverado 1500

1 Answer

How to replace a Thermastat on a 2003 Chevy silverado 2500 HD


The thermostat is located in the water pump on mostn never Chevy trucks. If you pull the upper fan shroud, you should see the thermostat housing. Remove the radiator hose, then the 2 bolts for the housing. Replace the thermostat, and gasket together.

Feb 17, 2010 | 2003 Chevrolet Suburban 1500

1 Answer

Replacing timing belt


a 2003 chevy silverado has a timing chain. In order to change this, you will have to remove the fan and clutch, the water pump, both serpentine belts, and the crankshaft pulley. You cannot reuse the bolt for the crank pulley, so you will have to buy a new one. You will also have to replace the gaskts for the timing chain. Anyways, once those are off, you remove the cover for the timing chain, and you will be able to unbolt and remove the timing chain and sprockets. Note where everything is, so you can return it to the exact same place. Once that is done, put everything back like you saw it when you took it apart, and you should be good to go. Remember to get new gaskets for the water pump, (you should replace the thermostat while you're in there as well) and make sure your belts are in good shape. Also check your idler pulleys and tensioners to make sure they're not worn out. Good luck, and enjoy your time under the hood.

Nov 07, 2009 | 2003 Chevrolet Silverado 1500

1 Answer

1990 chevy silverado v8 overheating. Which way are the water pump and belts supposed to go? I've replaced the radiator, thermostat, senors. At this point, not sure what else to do. Anys ideas? Seems like...


Fan should turn clockwise when viewed from the front, there should be a diagram on the radiator shroud or front cowl showing the belt routing.
I'd check the fan clutch, if that's working the impeller has fallen off of your water pump, it happens.

Sep 03, 2009 | 1990 Chevrolet K1500

2 Answers

99 Chevy Silverado is overheating after maintance on radiator


try checking the hoses for blockage,and if not that make sure the fan is working right as it might be the fan cluch,or your water pump may have went out,best of luck

Mar 12, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

Overheating


Hi,

Based on your description "hard line from thermastat area has a heat wraparound it goes towards firewall", that would appear to be part of the heater system for the inside of the vehicle and would not affect the overheating of the engine.

Most engine overheating could be caused by:
  • insufficient coolant in the radiator or reservoir;
  • defective (stuck) thermostat;
  • too soft radiator hoses (upper/lower);
  • water pump, belt, tensioner;
  • clogged radiator;
  • radiator fan motor, clutch (if has got one), relay.
Additionally, in a large number of vehicles, the radiator fan motor would only work the A/C or heater is ON.

Corrective action would require determining which is the culprit, pls try:
  • remove the thermostat completely out and test drive, see if the overheating comes back, if yes, then it is not the thermostat, if no then the thermostat most likely is stuck closed and would need replacement;
  • on start from a cold engine, remove the radiator cap and pls check if the water flows when the engine is revved. If yes, water pump is working, if not, water pump is defective;
  • in a closed loop cooling system such as in your car, there is a possibility that the radiator hoses might have thinned down or gotten softer. This could be checked by revving the engine while looking over the hoses, there should be apparent sagging or reduction in diameter when the engine is revved. If any, then they are too soft and would need replacement;
  • clogged radiators could be flushed/cleaned by removing the drain plug at the bottom.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Aug 08, 2008 | 2000 Chevrolet Silverado 1500

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