Question about 1999 Chevrolet Silverado 1500

1 Answer

99 Chevy 1500 heater core inlet hose male fitting broke

There are 2 hoses inlet/outlet into the heater core from the engine side at the firewall, and the hose on the right side broke off with the male plastic nozzle type fitting still in the hose. Can I replace that male nozzle fitting, I think it may be an Inlet or Outlet Nozzle Adapter? Do I need any special tools. I really appreciate any help or suggestions. Thank you, Roxanne Roxanne, How did u resolve the issue, as I have run into the same problem? Thanx.

Posted by on

  • nodeception May 27, 2009

    I noticed the whole nipple can be bought at the auto shop but don't know how to remove the broken part off the truck (nor do the people working at the shop! ). the part is attached to a metal male tube with a small rim at its end that is keeping the nipple on (saw a picture of what the parts look like in a repair book).

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 54 Answers

Well you may need to replace the entire heater core if the remaining inlet/outlet nipple is not long enough. common problem many people have

Posted on May 27, 2009

2 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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 6982 Answers

SOURCE: 99 Chevy Z71 heater core inlet hose male fitting broke

if repairable (not really sure of this) heater core will have to be removed in order to get the remainder of the plastic extension off the nipple on the core. The replacement part would need to be heated in order to shrink it back in place. This may be a factory assembly. I'm sure someone could make a fitting extension using some type of heat shrink arrangement the major problem is that if you try to clamp anything on there the clamp will be in the way when assembling it in the heater box.
bottom line is that either way it needs to come out...check with dealer or a good radiator shop to see what they have or recommend as a repair.

Posted on Mar 18, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1997 Ford Taurus, where is waterby pass valve localocation, no water getting to heater core


Based upon my research, there isn't one. Find the heater hose leading away from the water pump area. If is goes directly to the firewall connection for the heater core, then there is no valve on that side of the path. Then find the return hose from the firewall and follow it back to the engine. If there is no valve in that line, then there is no valve. Feel the hoses, if both, when the engine is up to temperature, are hot, then there is coolant flowing thru the core. If the inlet hose is hot and the outlet hose is cooler, then there is a restriction or clog in the core.

Oct 18, 2015 | Ford Cars & Trucks

1 Answer

Monte Carlo heater core


I don't know if top or bottom, but the heater core inlet will be the hose coming from either the intake manifold or a fitting on a cylinder head. The outlet from the heater core goes to the front of the engine, it goes into the water pump. I think all GM engines are like this, and almost all engine designs likewise. On a 1992 3.8L, for example, the heater core inlet hose comes from the intake manifold on the passenger side. The heater core outlet goes into a fitting on the water pump (lower front of engine).

Aug 02, 2015 | Cars & Trucks

4 Answers

My antifreeze is leaking and I am trying to find the leak. It also leaks from inside of my truck on the passenger side where their feet are.


Your heater core is leaking. Replacement of this part is a big job and should be done by a professional.

Jan 12, 2013 | Cars & Trucks

1 Answer

Heater core plug how to flush it grand am 1998


The core may be plugged, or it may have an air lock, or the core may be fine and the doors in the heater case may not be opening properly to pass heat.

With the engine at normal operating temperature, feel both the inlet and outlet core hoses at the firewall. If the coolant is circulating both hoses should be hot. If only one is hot, try cracking open the outlet line, with engine running, to get flow started from an air block. (The outlet line will run from the firewall to the front of engine near or at the water pump housing. The inlet for the heater comes off the top of engine from a head fitting and goes to the firewall.) If no flow results, the core may be plugged. To flush the core, take both hoses off at the firewall or off at where they fit on the engine, and put a garden hose into the outlet-flush it backwards-run until clear-let the water run to ground or use a catch can if able to. Some people use compressed air into the core instead of water flushing. Either way, you should see some sediment come out if it had any blockage. Once you get the heater core circulating, any further heater problems need to be addressed at the heater case. Make sure the temperature blend door can open and close-this door opens to let blower fan air pass across the heater core.
Good luck.

Dec 02, 2012 | Cars & Trucks

1 Answer

2002 nissan altima heater problem


have 2002 altima,blower works no heat at idle and very little heat when accelerating.I changed carbon cabin filter,made sure little gear under dash to temp knob wasnt broken,flushed and bled system.Nothing worked so checked hoses to heater core and found inlet hose was hot,outlet hose was not.So investigated this problem and came to conclusion heater core was clogged.An easy way to check is to get car to normal running temp. put on heater and blowers at full.Go under dash on passenger side where counsel meets firewall,this is where heater core core inlet and outlet aluminum tubbing go through firewall,you will be able to feel both tubes one closest to you is outlet, so if this one is not hot and and other is your heater core is clogged.I detached both inlet and outlet hoses to heater core from water control valve.Then I blasted water with waterhose and nozzle set at jet,first through outlet hose to blow gunk out,then through inlet hose until water runs clear.Reatach hoses fill and bled system.heater works great nice and hot!

Nov 10, 2012 | 2002 Nissan Altima

1 Answer

How to replace the heater core to a chevy astro 2003


  1. Drain the engine coolant.
  2. Reposition the outlet heater hose clamp at the heater core.
  3. Remove the outlet heater hose from the heater core.
  4. Reposition the inlet heater hose clamp at the heater core.
  5. Remove the inlet heater hose from the heater core.
  6. Remove the screws that retain the cover to the heater case assembly. This is located underneath the dash on the passenger side.
  7. Remove the straps that retain the heater core to the heater case assembly.
  8. Remove the heater core from the vehicle.

Sep 05, 2011 | 2002 Chevrolet Astro

1 Answer

WERE IS THE HEATER CORE VALVE IN 1990 LINCOLN


the inlet to your heater core is dead center of your firewall and 7 inches down. There will be two hoses. The inlet hose is on the right as your facing it. About 8 to 10 inches before the firewall as you follow the inlet hose back towards the engine, there is an inline valve with two wires attached to the top. This valve opens when heat is called for, and allows flow through the heater core. This valve is known for sticking shut. To check it, get the engine warm, turn on your heater, and feel the hose on bolth sides of the inline valve. If its hot on bolth sides you're valves ok. You can also check your flow through your heater core by feeling the outlet hose to the left of the inlet hose. If thats hot your heater core is most likely ok. I have the same car and have a problem with the heater not getting hot. My heater core checks out ok. I think the problem is with the blendor door not directing airflow through the heater core. GOOD TIMES!!!

Nov 12, 2010 | 1990 Lincoln Town Car

1 Answer

1989 chevy hearter coral needs holes..how to repair?


In the engine bay on the passenger side against the firewall. Follow that which should lead to 2 nipple fittings or 2 tubes where the hoses connect to the engine. Replace the hoses when you replace the heater core. If you try to replace the hoses later, you may break the fittings at the heater core because they have minimal flexibility.**Please rate me on this answer**

Jun 06, 2010 | 1989 Chevrolet Cavalier

1 Answer

Two cooling hoses going to my firewall is broken on my silverado truck 2000


Those are the inlet and outlet hoses to your heater core. The hoses are probably a specific form fitted hose that you can get at the counter of any parts store. There is a clamp on both sides of the hoses. Remove them and then use a razor blade to cut the hoses off. Be sure the engine is cool and the radiator cap is off. Place a catch bin under the hoses because coolant will come out. put some coolant on the inside end of the new hoses to make them easier to install. Buy new clamps also. The heater core necks where the hoses attach can break unless you are gentle and careful. Trust me, you don't want to replace a heater core unless it is absolutely necessary.

May 21, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

I need to replace the heat core in my blazer... how do i do this?


Draining the Cooling System
  • Park the vehicle on a level surface. If the engine has been running allow it to cool completely.
  • Drain the cooling system. Remove the radiator cap from the radiator. Locate the petcock valve on the lower corner of the radiator. Place a waste oil collection pan underneath the petcock valve and turn it counterclockwise to open. Allow the cooling system to drain completely.
  • Label and remove the heater hoses from the heater core. The heater hoses will connect to the heater core in the engine bay, on the firewall, on the passenger side of the vehicle. Use either the Phillips or the flat-blade screwdriver to loosen the hose clamps that secure the hoses to the heater core. Then pull the hoses off the heater core.
Removing the Heater Core
  • Remove the heater core cover. Move to inside the passenger compartment. Locate the heater case. It will be bolted to the firewall, below the dash on the passenger side of the vehicle. Use an appropriate sized socket or wrench to remove the five screws that connect the heater core cover to the heater case, and remove the cover.
  • Remove the steel straps that secure the heater core to the heater case. Unscrew the four screws that connect the steel straps to the heater case using a socket or wrench and remove the straps.
  • Remove the heater core by pulling it out of the heater case.
Installing the Heater Core
  • Place the new heater core into position inside the heater case. Be sure to carefully guide the inlet and outlet tubes through the holes in the firewall.
  • Reinstall the heater core retaining straps, by reinstalling the four screws that secure them.
  • Place the heater core cover into position over the heater case and reinstall the five screws that secure it.

Refilling the Cooling System
  • Reconnect the heater hoses to the heater core. Slide the hoses onto the inlet and outlet fittings that extend through the firewall, and tighten the hose clamps.
  • Close the petcock valve on the lower corner of the radiator by turning it clockwise.
  • Refill the radiator with a 50/50 mix of antifreeze and water.
  • Reinstall the radiator cap onto the radiator.
  • Run the engine and visually inspect for leaks.
Good luck and take your time, keep me posted and don't forget to rate please.

Jan 08, 2010 | 1989 Chevrolet S-10 Blazer

Not finding what you are looking for?
1999 Chevrolet Silverado 1500 Logo

1,674 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75797 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8152 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...