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Have a 1992 chevy van 5.7 engine that runs too cool, even with a 210 thermostat

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Change the fan blade clutch, it might be stuck, does it sound like a airplane taking off ? if nothing else put a smaller and direct fan with no fan clutch on it

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If the cooling system is working correctly, the only thing the thermostat does is make the engine reach normal operating temp in a short period of time. The engine is designed to run at 190 - 210 degrees as much as possible.
If you leave the thermostat out, it may run cooler, but you will get a check engine light at some point in time if the engine does not reach 190 degrees within 5 or 10 min. And when the check engine light comes on the performance will drop off. And it will use more fuel.

Jul 20, 2013 | 2005 Acura TL Automatic


Thermostat trick

This tip is for 210's 1.4 and 1.5. The original lowest degree temperature thermostat that manual calls for is 180 degree, but living in the southwest with a small 210 4 cyl calls for more cooling techniques. In the summer time I take out the thermostat and run it without it. In the winter time I install a regular GM 350 enginge 160 degree thermostat in my 210. It fits! And you can still run your 210 cool with 160 degrees.

on Aug 05, 2008 | 2006 Datsun 210

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If i remove the thermostat from my 92 cutlass ciera in the summer will it keep it cool during the hot weather

No & you may not have proper control
over the fuel injection
Your living back in the 1950's
The motor will run too cool for the computer
to do it's job.
Engine coolant has to be at 205 to 210 all
year round & you have to have a thermostat
for that to happen.

Jul 19, 2013 | 1992 Oldsmobile Cutlass Ciera

1 Answer

Heat problems in 92 chevy van

If the heater valve operate properly then the line to the heater core is plug.
Check & replace or flush.

Good luck


Jun 28, 2017 | Cars & Trucks

2 Answers

Thermostadt was stuck open replaced thermostadt now it runs just a little hot

Yes, try a 180 thermostat, with a 195 the fans will not turn on until about 210.

Oct 05, 2012 | 2003 Chevrolet TrailBlazer

2 Answers

My 1992 chevy g20 van surges and i'm not sure exactly why. I changed the pcv valve, fuel filter, spark plugs, and air filter. What are some possibilities

My first thought would be a vacuum leak in one of the hoses. Rubber hoses get brittle with age and even a small crack in a hose may cause surging. Happened to me in a Lumina.

Apr 26, 2012 | 1997 Chevrolet Astro

2 Answers

I have a 1992 Chevy G20 Mark 3 van heat trouble please can someone help me

Have you checked your radiator cap maybe its not building pressure.

Oct 19, 2017 | 1992 Chevrolet G20

1 Answer

2006 Chevy express van. Normally runs one mark below 1/2 mark. Lately ocassionally goes 1-2 marks above half way (usually when sitting idling). Have had coolant changed (Chevy dealer) and new radiator cap...

You've already eliminated #3 and #6, so keep checking...

Priority Action Part Type Cause
1 Inspect Radiator Cooling System Clogged.
2 Inspect Radiator Radiator Fins Obstructed.
3 Inspect Radiator Cap Worn or Damaged Radiator Cap.
4 Inspect Radiator Fan Motor Faulty Fan Motor.
5 Inspect Belt Incorrectly Routed, Adjusted (Tensioned), Missing or Worn Drive Belt(s).
6 Inspect Thermostat Faulty Thermostat.
7 Inspect Water Pump Worn, Cracked or Leaking Water Pump.
8 Inspect Radiator Fan Relay Intermittent Failure

Jul 16, 2011 | Chevrolet Express Cars & Trucks

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