Question about 1986 GMC Jimmy

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Finding radiator thermostat on 1986 gmc jimmy 5.7l

Im having a lot of trouble finding the radiator thermostat please help

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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.

Posted on Nov 19, 2009

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Posted on Jan 02, 2017

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1 Answer

Radiator Cap is Steaming


wrong thermostat,or wrong radiator cap,clogged radiator,check the easy stuff first.radiator caps are made for different pressures also...

Nov 28, 2012 | 1986 GMC Jimmy

1 Answer

I have a 98 gmc jimmy and its overheating. I have already changed the thermostat, temperature sensor. My water pump is less than 6mos old and I changed my fan clutch same time as water pump. I see lots of...


You can try one of the industrial strength radiator cleaners like Radiator Cleaner. According to the manufacturer: "Radiator cleaner removes the dirt, grease, scale, grime & solder from the engine cooling system. Radiator cleaner is a powerful cleaning agent not only for the automobile engine but can be used for the steam tube and boiler tube etc. Radiator cleaner not only clean the clogs of the system but also keep the system in order to run for a longer period. Radiator cleaner clean the system fast easy and safely without harming any part of the cooling system."

Advanced Petro-Chemicals' website can provide you full instructions. If you are interested, please CLICK HERE

May 01, 2012 | 1998 GMC Jimmy

1 Answer

I actually have a 1996 gmc jimmy is it the same as a 1999 i need to find the thermostat


hi, if you are speaking of a 1999 gmc jimmy, yes, the engines in both vehicles use the same thermostat. the thermostat is located inside the thermostat housing which is connected to the upper radiator hose, and mounted on the top of the engine to the intake manifold. it maybe a plastic housing, or aluminum, it will have two bolts. follow the upper radiator hose away from the radiator and where it ends, is where the housing is.

Jun 25, 2010 | 1999 GMC Jimmy

1 Answer

Where is thermostat on gmc jimmy 2000


follow the upper radiator hose (large hose at top of radiator) from radiator to engine the housing it goes to is the thermosat housing the thermostat is under that housing

Apr 06, 2010 | 2000 GMC Jimmy

2 Answers

Firing order diagram for 1986 GMC S15 2.8L


For this models:
1986 GMC S15/T15 4WD P/U 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 4WD Jimmy 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 2WD P/U 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 2WD Jimmy 2.8 liter V-6 VIN "R"

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Hope helped woth this. Remember rated this help. Good luck.

Nov 24, 2009 | 1986 GMC S-15

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

Cannot locate thermostat on a 1995 GMC Jimmy 4.3 Vortec Engine? Need Photo if possible. Thanks


Follow top radiator hose to engine. Thermostst is under cover hose is connected to. If this is helpful, please post as such. If it is spotted, please post as fixya!! TY

Jan 18, 2009 | 1995 GMC Jimmy

1 Answer

I don't know where the thermostat is


if you follow the radiator hose on the drivers side of the radiator up to the motor. you will find the spot it is connected to with a hose clamp. under that housing is the thermostat.

hope this helps ans let me know if I can further help you

Tom

Dec 19, 2008 | 2000 GMC Jimmy

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