1994 GMC Suburban Support Question
1994 GMC Suburban Support Question
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Question posted by geodad3 on October 10th, 2012
Temperature Gauge Fluctuating Wildly.
In my 1994, GMC 5.0 L, 2WD, Suburban, just noticed the the temperature gauge rising to max almost immediately after starting to drive. Stays like that for a minute or two, the then drops to half way. After another few minutes, up it goes again to max. Heater works sporadically, blowing hot, then cold. Looking for specific troubleshooting tips.
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Related Manual Pages
Owner's Manual - Page 3
... special equipment companies. When it comes to service, keep in your complete satisfaction. Thanks for all these publications carefully. We want to assureyou of your 1994 GMC Yukon or Suburban and to provide important safety information. INTRODUCTION
1994 GMC Yukon and Suburban Owner's Manual
Welcome
This manual was prepared to acquaintyou with your vehicle.
Owner's Manual - Page 11
...
Windshield Washer
n
1
Windshield Defroster
J
Rear Window Washer
Rear Window Defogger
Ventilating Fan
I
Hatch Release
These symbols are used on warning and indicator lights:
I
Engine Coolant Temperature Battery Charging System Fuel Engine Oil Pressure
BRAKE
Brake
ANTILOCK
4 Wheel Anti-Lock
I
RELEASE
Parking Brake Release
I
SHIFT
Shift Light
ix
Owner's Manual - Page 73
... light does not come on, orthe instant the light goes off, turn the ignition key to cool, then try the same steps again. When your engine is outside temperature drops below freezing. This could damage your starter motor.
4.
I NOTICE:
Holding your enginerun when you get good starting in cold weather. Andthe excessive heat can damage...
Owner's Manual - Page 90
... axlelocks and unlocks automatically when you shift. If the outside temperature is very hot, or the vehicle has been used only for off-road driving.
Don't pause in 4H or 4L may be a slight...Neutral): Slow the vehicle to shift out of the accelerator for the axle to unlock.
2-34 Remember that driving in N (Neutral) as on wet or icy roads, or i n most street and highway situations....
Owner's Manual - Page 128
...stays on briefly when you are starting... the engine.
The SHIFT indicator light will come on while you are on some other problem. Daytime Running Lights(DRL) Indicator Light (Canada Only)
I
If your various gages to see "Headlights and Vehicle Lighting" in the warning zones. It could indicate a problem with your oil pressure, coolant temperature...Lights are driving, it ...
Owner's Manual - Page 131
...was half full, but it actually took a little more or less than the fuel gage indicated.
See "Engine Overheating" in the Index. Engine Coolant Temperature Gage
This gage shows the engine coolant temperature....
0
It takes a little more , your vehicle, and turn a corner or speed up than half the tank's capacity to fill the tank. For your engine coolant has overheated. Hot Coolant Can ...
Owner's Manual - Page 132
... Cluster -Gas
Tachometer Cluster -Diesel
The oil pressure gage shows the engine oil pressure in kPa (kilopascals). Oil pressure may vary with engine speed, outside temperature and oil viscosity, but readings above the low pressure zone indicate the normal operating range.
2-76 Canadian vehicles indicate pressure in psi (pounds per square...
Owner's Manual - Page 142
... when it's cold outside, your vehicle's heating system can use an engine coolantheater during initial start the engine. This isnormal. See "EngineCoolant" in the Index to find out how to check...out warmer air. When you idle your diesel engine for the engine to reach normal operating temperature, and shortens the time it takes the heater to help heat thepassenger compartment faster. Heater ...
Owner's Manual - Page 143
Temperature Lever
The lower lever on the right side of your vehicle. Fan Control Knob
The knob on the ...of the windshield and at your heatinghir conditioning system will look like this setting, alongwith a heat setting, when you select the temperature of the air flowinginto the passenger area of the heating system control panel controls the fan speed. Function Lever
The upper lever on...
Owner's Manual - Page 144
...temperature of the air flowing into the passenger area of the system display control the air flow. Air Controls (BLEND)
The two buttons to the right of your vehicle. Heater (Bottom) : Press the bottom of this button and the air flow will come through the instrument panel vents. See "MAX.... Release the bar when the system reaches the temperature you want. When you first turn on your vehicle's...
Owner's Manual - Page 148
... to allow second seat passengers to REAR CNTL.
Front Control
Rear Control
...
1
,
To adjust the air temperature, turn the knob to regulate the temperature, location and speed of air flow.
For warmer air, turn the temperature knob on the control panel. Generally, the upper vents are provided to the right (red) side,and...
Owner's Manual - Page 198
... important considerations have a "weight-distributing'' hitch, the trailer tongue (A) should weigh 10%of Canada Limited, Customer Assistance Center, 1908 Colonel Sam Drive, Oshawa, Ontario L1 H 8P7.
For example, speed, altitude, road grades, outside temperature and how much your vehicle is an important weight to General Motors of the total loaded trailer weight (B).
Owner's Manual - Page 202
..."D" when towing a trailer will flash for a few minutes before you start down , you might have to have a manual transmission ... pressure at high altitude with steep uphill grades, your transmission. Just drive in "N" (Neutral) for turnseven if the bulbs on your signal... transmission in fourth gear(or, as you immediately turn your engine off the engine. The ...temperature than normal.
Owner's Manual - Page 214
If you have a diesel engine, you will find a low coolant light on your vehicle instrument panel. Towing From the Rear
Engine Overheating
You will also find a coolant temperature gage o n your instrument panel.
5-10
Owner's Manual - Page 228
... vehicle loading, trailer towing and/or high outside temperatures, the fan speed increases as the clutch more ... while you're driving, especially if you 'd use your foot from the accelerator pedal. If a Tire Goes Flat
It's unusual... cooling system functioning properly. So you start the engine. You may also hear ...air goes out of the traffic lane. Get the vehicle under control by steering the way ...
Owner's Manual - Page 252
...temperatures and can use one gallon of kerosene for every two gallonsof diesel fuel. In very cold temperatures... and 2-D). Add kerosene only when the temperature falls below 0°F (-1 8"C ) ...get the right fuel.
NOTICE:
Never use home ...fuel, a fire could start and people could be used...starting when the engine is hot and may be burned.help avoid this happens, just wait for several minutes...
Owner's Manual - Page 253
...temperatures below freezing. Recommended Action Drain water from its fuel tanks, or if it means water was pumped into your fuel tank. Immediately after you drive when this happens, a "WATER IN FUEL" light will be there to be changed if this for fuel pressure. NOTICE...drained - At temperatures above freezing.
2. Turn off yourengine immediately. Light stays on intermittently....
Owner's Manual - Page 264
...RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. Do not use other viscosity oils, such as shown in ...SAE 5W-30 NOR SAE 1OW-30 GRADE OILS ARE AVAILABLE, SAE 30 GRADE MAY BE USED AT TEMPERATURES ABOVE 40 DEGREES F (4 DEGREES C). You should look for your vehicle, as SAE lOW-40 or...
Owner's Manual - Page 275
...drive the vehicle in "D" (3rd Gear) until the engine temperaturegage moves and then remains steady for eighthours or more accurate readingof the fluid level. NOTICE:
Too much can damage transmission. if
Wait at normal operating temperature...the engine off and is made after the vehicle has been sitting for ten minutes. While pulling a trailer. Then follow these steps:
6-29 To check ...
Owner's Manual - Page 370
... operation.
COURTESY TRANSPORTATION INCLUDES: One way SHUTTLE RIDE from the dealership (up to and not to 5 day maximum. Roadside Assistance
GMC Truck's Roadside Assistance provides stranded owners... provide dealer information at 1-800-GMC TRUCK (1-800-462-8782, Roadside Assistance prompt) to the owner. Should you in lieu of Commitment Plus eligible 1994 GMC light duty trucks.
A loaner ...
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