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2001 gmc sierra overheating

Keeps overheating after replacing water pump and the thermostast and hoses

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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  • 98 Answers

SOURCE: 1996 buick roadmaster keeps overheating:

A shotgun approach to repairs can really rack up the bills.

If your symptoms are loss of water and you have replaced the thermostat, you more than likely have an issue with steam. And that steam more than often comes from a bad head gasket. Most head gasket gasket failures seem to be confined to the water side initially, but let it go on bigger damage will occur.
You can buy a litmus test strip to dunk in the coolant. It will indicate if there are exhaust residuals in the water and thus a gasket failure.

However it may just be something simple, given that you have just about replaced everything:

have you given the radiator a good hosing inside and out?
is the radiator fan running when it should be?

Posted on Sep 07, 2008

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  • 250 Answers

SOURCE: Changing a water pump on a 2005 GMC Pick-up

Open the hood of your truck. Look inside the engine bay. See the fan assembly and the pulley that the belt rides on. The water pump is behind the pulley. Changing water pumps can be somewhat of a task. Professional help will be needed for someone that can't find the waterpump. 


 The water pump is on the passenger side front of the engine; I had to drain the coolant, I kept the belt in place, then I removed the 3 bolts from the pulley to give me access to the bolts on the top (it will require a set of metric tools for it). Then I removed the passenger side front tire and the splash cover from under the car just above the tire, removed all bolts that holds the pump on the lower part of it, then removed the belt, scraped and clean very well the old gasket. The new water pump came with a new gasket, so I just got a gasket maker and applied to the gasket, so I did not have to do it again. Work backwords to reinstall everything, good time to replace the coolant and if you have not done yet, replace the thermostat valve along with any hose that may be cracked, rigid or enlarged (check the hoses to the heater core also). Please check your belts and hoses so you will not have to redo the process again. 


Posted on Jan 29, 2009

  • 90 Answers

SOURCE: 2005 GMC Sierra Overheating

If your sure there is no trapped air in system after refill and air bleed off, is fan clutch pulling good air thru radiator? Even if it is, the heater should have coolant as hot as what temp gage is showing! Try backwards flushing heater core (dex cool is notorious for plugging these up). There is a TSB for cracked cylinder heads from GM for unexplained coolant loss.Remove drivers side valve cover, and look at center three head bolts for coolant around them, if coolant has been getting in thru this suspect area, there will be a milky/pudding like goo under valve cover and on head. GM had a company called Castec cast these and the areas near the head bolts were found to be too porous (NO recall YET!) Ya, you guessed it, replace heads! Unfortunately, if its gotten hot to many times, it has probably hurt the heads/gaskets. Hope this helps. PS: The castec logo is under the rearmost pair of rocker arms,may have to remove them to see.

Posted on Feb 05, 2009

  • 117 Answers

SOURCE: 2001 GMC SIERRA . ABS LIGHT STAYS ON

Wheel speed sensors misadjusted, damaged , or metal shavings and other debree, since they are magnetic can give false readings from one of the wheel circuits. Over sized tires can give of false speed readings as well. there are many other causes including bad relay, control module, e.t.c. It is best to have the proper scan tool to diagnose an ABS problem

Posted on Jul 09, 2009

canbruce75
  • 1776 Answers

SOURCE: how to replace a water pump on a 5.3 liter sierra

I suggest that you visit the autozone.com website and register the vehicle. It doesn't cost anything and will give you access to an online repair manual. The steps for replacing the water pump should be available there. Hope this helped and best wishes.

Posted on Aug 31, 2009

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1 Answer

2004 sierra overheating


Three additional things that can cause overheating - a restricted exhaust system, a weak fan clutch, and restrictions in the cooling system in the block or hoses. Any chance you might have air in the cooling system ?

Jun 24, 2012 | 2004 GMC Sierra

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2001 GMC SONOMA overheated .. replaced radiator and water pump.. now at starting, the engine shakes a lot . after a few minutes , runs smooth ( normal) need help. any clues??


check to see if the wires are connected good to the mass air flow sensor located in the air filter hose assembly, its possible that when you replaced the water pump the connection was disconnected, making the truck run rough at start up and after warming up run a little smoother. I would also affect the acceleration going down the road.

Oct 04, 2011 | 2001 GMC Sonoma Extended Cab

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My 1989 GMC Sierra (350, 2WD) was leaking from the water pump and overheating...Installed new water pump and serpentine belt (after getting it off, it needed to be replaced)...Truck is still overheating,...


when replacing coolant, did you bleed the air from system! you can remove radiator or overflow cap when cold. start vehicle and let it run until thermostat opens,when all air is out hoses should get hot. but before starting, turn heater on to high setting, if you vehicle does not have a air bleeder on it. do as above. just be sure radiator is full of coolant. after hoses get hot, turn off heater, then put cap back on radiator or overflow. good-day! the first thing to do is to check for a stuck closed thermostat. do this first ok!


Jul 27, 2011 | 1989 GMC Sierra

1 Answer

How to change thermostat on 2003 gmc sierra 5.3


Your not going to believe how easy it is to replace this one.

The thermostat is located behind the housing bolted to the water pump that the lower hose attaches to. remove the lower hose from the housing. Remove the 2 bolts holding the housing to the water pump with either a 10mm socket or wrench.

The new stat will come as a stat/housing assembly. bolt it on. Reattach the lower hose. Fill up the reservoir. Let the vehicle idle until up to operating temp making sure to keep the reservoir topped off while the engine warms up.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Mar 03, 2011 | 2003 GMC Sierra

4 Answers

Whats the symptoms for defective water pump in GMC Sierra 1/2 pick up ?


The symptoms would be the car overheating and not cooling down, Also in some cases the water pump will leak. With a overheating problem its always a good idea to check the thermostat before jumping to water pump. Hope this helped =)

Mar 04, 2010 | 2000 GMC Sierra

1 Answer

Replacement of water pump on 2004 gmc sierra 2500hd 6.0l. any tips on removal and installation


Remove or disconnect the following:

Air outlet duct Coolant Inlet radiator hose from the water pump Upper fan shroud Cooling fan and clutch assembly Drive belt Radiator outlet hose from the coolant pump Surge tank hose Heater hose Water pump

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DO NOT use cooling system seal tabs (or similar compounds) unless otherwise instructed. The use of cooling system seal tabs (or similar compounds) may restrict coolant flow through the passages of the cooling system or the engine components. Restricted coolant flow may cause engine overheating and/or damage to the cooling system or the engine components/assembly.

Install or connect the following:

Water pump. Install the water pump bolts. Tighten the water pump bolts first pass to 11 ft. lbs. (15 Nm); tighten the bolts final pass to 22 ft. lbs. (30 Nm). Water pump drive belt pulley and bolts (if applicable). Tighten the pulley bolts first pass to 89 inch lbs. (10 Nm); tighten the bolts final pass to 18 ft. lbs. (25 Nm). Surge tank hose Heater hose Outlet radiator hose to the coolant pump Drive belt Cooling fan and clutch assembly Upper fan shroud Inlet radiator hose to the water pump Air inlet duct Coolant

Jan 15, 2010 | GMC Sierra 2500HD Cars & Trucks

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Replaceing fuel pump on gmc sierra


pull the bed off or drop the gas tank

Nov 24, 2009 | 2001 GMC Sierra 1500HD

1 Answer

How to replace a water pump on a 5.3 liter sierra


I suggest that you visit the autozone.com website and register the vehicle. It doesn't cost anything and will give you access to an online repair manual. The steps for replacing the water pump should be available there. Hope this helped and best wishes.

Aug 31, 2009 | 2001 GMC Sierra 1500HD

1 Answer

I have an 1995 GMC Sierra Truck that overheats whenever I drive for more than 20min. with the A/C on .What can the problem be ?


Your thermostat may need to be replaced and your water pump may be weak and need to be replaced also. Try replacing the thermostat and flushing out the coolant system and replacing it with new antifreeze. Also inspect the radiator hose, check for the condition there in, if there too soft and when they get hot, the hose may collapse and restrict the flow of antifreeze though the system. After that has been done and you are still over heating, the water pump could be weak and needs to be replaced. Recap: service the cooling system with new 50/50 mix antifreeze, replace the thermostat and replace any coolant hose that is soft. Good luck and hope this helps, keep me posted, be glad to help.

Jun 09, 2009 | 1995 GMC Sierra C1500

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