Question about 1986 GMC K1500

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1986 gmc dies at idal, i replaced the gaskets. and replaced the thermostat, are the hoses on the carburator wrong?

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Carb may need to be ajusted fuel to air mix may be wrong

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My truck starts fine but dies after about 2-3 min when I let off the acclerator and come to a stop. It runs a little rough when I accelerate, I've changed the plugs,wires, air filter, & distributor cap...

yes please replace the fuel filter,the fuel filter replace every 40,000 kilometers according to the factory specifacation.then buy a repair kit of the carburator to clean and replace gasket to prevent leaking of gasoline

Mar 17, 2011 | 1990 GMC Sierra

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I need to replace a thermostat on a 1986 suburban

when you're facing the engine its the biggest hose on your left going from the radiator to the intake manifold undo the hose clamp on the hose connected the intake manifold pull the hose off, undo the 2 bolts that hold the thermostat housing on (the part that you just pulled the hose off of) pull the thermostat out it will just be sitting there no wires or bolts holding it down, put new one in same way, scrape thermostat housing clean of excess gasket or gasket sealant aswell as the intake manifold. replace the gasket seal it up with high temp r.t.v sealant (gasket sealer) usually comes in a tube an the color is red. bolt thermostat housing back down connect the radiator house, check anti-freeze level an you're good to go

Feb 08, 2011 | 1986 GMC Suburban

2 Answers

Trying to locate thermostat

Follow the top hose from the radiator to where it connects to the motor. Remove the hose at the motor and then remove the housing the that the hose was connected to. Under that housing is where the therostat will be located. Make sure you compeltely remove the old gasket before installing the new gasket or it will not seal properly.

Aug 24, 2010 | 1986 Chevrolet El Camino

2 Answers

Carb is leaking it looks like accelerator pump. truck still runs not sure if there is a gasket i could replace.


There is a carburator rebuild kit that you can get at the AutoParts store for your vehicle. Runs about $25 and it has a diagram and step by step instruccions on how to rebuild the carburator yourself. If you don't feel comfrortable doing it, take it to a carburator shop for rebuilding. It is cheaper if you take the carb. by itself. Before removing carb. take a few pictures of the hoses and linkage n mark each hose and electrical connection removed, this will make your life a lot easier when you install it back.

Don't forget to rate this answer, Good Luck.

Apr 27, 2010 | 1986 Dodge Ram 50

3 Answers

How to replace the thermostat on a 1989 GMC Sierra

Drain the coolant (left lower side of the radiator) Follow the upper radiator hose to the engine, at the end of the hose is a metal housing, held down with 2 bolts, or 1 bolt and 1 stud. There may be wires going to one of the bolts, be sure these go back on. After taking the 2 bolts out, lift up the housing and the thermostat will be right there. Clean the old gasket from the manifold and the water outlet housing. Now install the thermostat, then the gasket. and torque down the bolts evenly. about 25-30 ft pounds. fill the radiator until about 2 inches below the filler neck, and start the engine, now keep putting coolant in to keep it 2 inches below the radiator neck, and let it warm up until you see coolant moving in the radiator, now fill it to the top and fill the coolant bottle to the cold mark. Its a good time to replace the radiator cap also. Good Luck.

Jan 28, 2010 | 1989 GMC Sierra

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I have a 1986 gmc 4x4 pickup, the heater box only blows lukewarm air not even enough at tmes to defrost window, i replaced the heater core, the thermostat i think its somewhere inside can u please help, is...

the thermostat is going to be located in a coolant hose. usually the bottom left one if you are looking under the hood. bad thing is is that you will have to also replace coolant. which is a good thing, just a little bit more money. take off the coolant hose off from the block, not the radiator and you should be able to see it. it should be a metal part with a spring in the middle of it.

Jan 01, 2010 | 1986 GMC C1500

1 Answer

Finding radiator thermostat on 1986 gmc jimmy 5.7l

The thermostat is on the end of the radiator hoseat the engine.Just follow the upper radiator hose the the engine and the hose hooks up to the thermostat housing.Remove the 2 bolts and the thermostat is under this housing.

Nov 19, 2009 | 1986 GMC Jimmy

2 Answers

Where can i find the thermostat on 1986 gmc jimmy

Follow the upper radiator hose to the outlet elbow (the waterneck!) and it is located under it:

Removal & Installation
  1. Drain the radiator until the coolant level is below the thermostat level (below the level of the intake manifold).
CAUTION When draining the coolant, keep in mind that cats and dogs are attracted by the ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.

  1. Remove the water outlet elbow assembly from the engine. Remove the thermostat from inside the elbow.
  2. Install new thermostat in the reverse order of removal, making sure the spring side is inserted into the elbow. Clean the gasket surfaces on the water outlet elbow and the intake manifold. Use a new gasket when installing the elbow to the manifold. On later models the thermostat housing may have been sealed with RTV sealant. If so, place a 1/8 inch bead of RTV sealer all around the thermostat housing sealing surface on the intake manifold and install the housing while it is still wet. Refill the radiator to approximately 21/2 inch below the filler neck.
If the thermostat is equipped with a pin hole, be sure to install pin side facing upwards.

Nov 19, 2009 | 1986 GMC Jimmy

1 Answer

Thermostat replacement in a 1998 toyota tacoma

You're going to lose some coolant, so have a bucket or other container ready. Follow the upper radiator hose to the point where it's connected to the engine. The hose is clamped to a metal housing which is bolted to the engine. Remove the bolts (not the hose) and lift the housing to expose the thermostat (may require a little prying with a screwdriver or similar tool). Note how the old thermostat is fitted (which end is up), lift it out of the engine, and then remove all traces of gasket from the housing and the engine. Install the new thermostat and gasket, replace the bolts, add coolant as necessary, and you're done.

Feb 01, 2009 | 1986 Toyota 4Runner

2 Answers

Need to replace thermostat on 1992 toyota 4 runner. Where is it located?

The thermostat is located at the end of the upper radiator hose. Were the hose connects to the top of the engine on the passenger side of the valve cover on the engine. I believe the housing takes a 12mm socket. Don't for get to get a new gasket for the thermostat housing, how thermostats come with the gasket. I also recommend changing your radiator pressure cap 13psi.

Here is a picture:

Jul 22, 2008 | 1986 Toyota 4Runner

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