Question about 1995 GMC Sierra C1500

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Broken metal pipe near distributor in 1990 GMC 1500 pickup leaking antifreeze badly

Pipe that is broken appears to connect to heater hose but a part may have broken off don't know what it looked like before it broke.

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  • Stephanie Smith Mar 22, 2014

    the remaining pipe appears to be threaded as though something was screwed into it.

  • Walter Bingham
    Walter Bingham Mar 24, 2014

    Very common problem and I just had to deal with same problem.

  • Walter Bingham
    Walter Bingham Mar 24, 2014

    There is a solution that is not factory abd will last a lot longer.

  • Walter Bingham
    Walter Bingham Mar 24, 2014

    Email me to get the details of what I did instead of those "quick" connectors. Walter



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  • 14 Answers

Biggest problem is getting the rotten fitting out of the intake manifold

Posted on May 18, 2014


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Posted on Jan 02, 2017

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SOURCE: On a 1995 GMC sierra P/U 5.0L engine. The

NO , just replace the the gasket and exhaust bolt, just make sure you buy a stainless bolt, there not much more but they will out last the truck. and might as well replace the drive's side too since your working on it. Good luck and hope this helps. 

Posted on Jul 01, 2009

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SOURCE: I have a 99 GMC Suburban with a broken hose. It

Ok... have this one diagnosed by a PROFESSIONAL sir!... You obviously don't know what you're looking at.

Posted on Sep 10, 2009

  • 89 Answers

SOURCE: I have a 1990 gmc 1500 5 speed that is overheating

It sounds like you have covered the basics. I will provide a list of some of the more major things. I would recommend having the coolant system pressure tested, as well as a compression test on the cylinders. At this point, it could be one of the following. 1: The bypass hose (This connects from the intake to the water pump) 2: Leaking freeze plug or plugs 3: Leaking intake manifold gasket or cracked intake 4: Bad head gasket or cracked head 5: Cracked block Having the coolant system pressure tested should expose any external leaks. Having the cylinders compression tested may tell of any internal problems.

Posted on Jan 02, 2010

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SOURCE: 1990 GMC Sierra 1500 pickup. Windshield wipers, Cruise Control

May want to look at replacing the wiper circuit board.It is located on the firewall adjacent to the wiper motor and has a some what square black cover with 3 torx screws and wireing harness pluged into the side.We had a truck that every time you washed it the wipers would stay on until it dryed out.You can try removing it and spaying it down with contact cleaner just watch the brease on the two contact tips.Well hope this helps.

Posted on Feb 05, 2010

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SOURCE: I have a 1994 GMC 6 cyl. pickup. I am loosing

This hose is rather easy to install, But the real problem is getting the old hose off!! The connection at the heater is fun. I found it best to cut length wise and very gently peal the hose off. Very easy to create a leak in the heater if you get too wrough! Check all the other hoses as well.

Posted on Apr 19, 2010

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1 Answer

1989 GMC Sierra 1500 heater blows cold air. Changed thermostat. Both hoses are cold.

check antifreeze level add if low, and check intake heat control valve on ps side of intake if its locked shut it can be removed and a water pipe nipple put in place of it and the heater hose reconnected..if the water pump is good, it should give heat this valve should be on the intake with a heater hose connected to it..and its vacuum operated but will jam shut with age and cold weather..good luck..

Jan 19, 2013 | 1989 GMC Sierra

1 Answer

My 1994 sierra 1500 is leaking antifreeze right out. IS THIS MY WATER PUMP?

look in engine compartment from underneath- if water coming from directly over crank pulley(big one closest to ground) ,yes its the water pump- could also be lower hose(radiator hose closest to ground),if leaking up top - could be other radiator hose- if leaking near fire wall- heater hose- ?where is the water appearing?

May 18, 2011 | 1994 GMC Sierra

3 Answers

My van is leaking antifreeze from somewhere by the firewall of the van not the radiator. Its the metal hose that has a hole in it but i can't figure out the name of these metal (aluminum)hoses.

The metal hose by the firewall is either your heater core inlet pipe or outlet pipe. These inlet and outlet pipes will develop leaks for a varity of reasons. If this is the source of your leak, you may want to replace the entire heater core which is much easier than trying to fix the leak. The attached link will help you.

Please remember to rate this solution. Thanks!

Feb 04, 2011 | 1999 Chrysler Town & Country

1 Answer

Hose broke and antifreeze all leaked out

heater hoses one in the back of the engine on the intake the other off the water pump, overflow hose from the radiator by the cap and then to the bottle then of course your radiator upper and lower hoses theres not any more than those.

Jul 23, 2010 | 1994 GMC Sierra

1 Answer

Looking for a heater core pipe (front)

If your carpet is getting wet under the dash and around , then you probably need a new heater core. If it is a simple leak that requires you to replace the hose ot clamp, then the heater core is leaking from the outside into the engine compartment instead of the inside of the car.

Apr 08, 2009 | 2002 Kia Sedona

1 Answer

Making a soundlike a hole i n muffler

Depending on what engine is in your truck, I think that canister does not have a hose connected to it. A common source of that exhaust leak noise is from a broken thermactor check valve in the back of the engine. If it is a Ford V8 look in the back of the engine closest to the firewall. There is a Metal pipe that is bolted to the back of the left & right cylinder head. in the middle of the pipe is a bulblike checkvalve that has a 1" hose that suppose to be connected to the check valve... if the hose is not connected look to see if the top of the check valve has rotted off and the broken piece is still clamped in the inside of the hose. The easiest way to replace the valve if it is broken is to unbolt the tube forn the left & right side of the rear of the cylinder heads and fish the tube out and clamp the tube on a bench vise. Do not distort the tube or you will struggle to bolt it back on.

Apr 04, 2009 | 1990 Ford F150

1 Answer

Heater Core Leaking 2001 GMC Sierra 5.3. I have a strong antifreeze smell in the cab and this morning the heater fogged up the windows. I have read that replacing the heater core also involves evacuating...

you could quick fix! but you will have no heat, 1st under the hood, look at the back of motor, follow all you're radiator hoses, take two hoses off the heater core stick a pipe that is big enough then clamp the pipe down. to both sides of hoses to the pipe you will eventually have to replace heater core!!

Mar 24, 2009 | 2001 Chevrolet Silverado 1500

2 Answers

Coolant leak

Hello **** B. First double check the hose connection for the leak, it can drain to another connection & appear to leak there. Second, yes there is a gasket on the pipe connection to the block. To replace the gasket, park the car in a location for least 5 to 6 hours to cool down mabe longer. Have the gasket replacement, a tube of gasket sealant, 2 gallons of antifreeze, a drain bucket, and a very large rag or rags. Remove the hose, catch the fluid in bucket, remove the pipe, clean the old gasket area, apply gasket sealent, attache gasket, mount the pipe, tighten all mounting bolts a 1/2 to 3/4 turn each until torqued downed evenly, and attache hose. Fill reservoir, with radiator cap off, start engine and add coolant to radiator until full and you see fluid flowing. Apply cap & check for leaks. Easy???????? Good Luck.

Oct 17, 2008 | 1995 Plymouth Acclaim

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