1994 GMC Suburban Support Question
1994 GMC Suburban Support Question
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Question posted by damselfly2 on August 18th, 2014
Engine Oil Start Up Pressure Increasing Over The Years.
The engine oil start up pressure has been steadily increasing over the years. It now goes up to the 411? kpascal mark until warm when it stays at about 309 to 343 when at driving speeds above 80 kms. On infrequent occassions the indicator will show brief episodes of pressure drops of around two gradients (I believe the gradients indicate about 34 kpascals).These episodes are like dramatic twitches ie not steady and can occur at any driving speed. At what point is the engine oil pressure too high? What would your trouble shooting procedure be? Thankyou for your time and insights.
Current Answers
Related Manual Pages
Owner's Manual - Page 11
... your controls:
I
Windshield Wiper
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 26
...Safety Belts Work
When you do have been badly hurt or killed. You never know if it goes. But most crashes buckling up a person wouldn't survive. a lot! After more than 25 years of them, people who buckle up can be in between.
Here's why: They work. In ... if you go as fast as it will be a bad one. For example, if the bike is going 10 mph (16 km/h), so is the child.
1-14
Owner's Manual - Page 73
...to OFF. This letsoil pressure build up.
3. If this light does not come on, orthe instant the light goes off, turn the ignition key to START. If the engine doesnot start after 15 seconds of...If you 're not in cold weather.
I NOTICE:
Holding your engine is outside temperature drops below freezing. Use SAE low-30 oil when the outside .
2-17 When your key in the Index). NOTICE...
Owner's Manual - Page 78
... out of snow, ice or sand without damaging your accelerator pedal about 35 mph (56 km/h), push your transmission, see "If You're Stuck: In Sand, Mud, Ice or ... only after your "R" vehicle is being towed.
NOTICE:
Damage to back up.
If you need more power for normal driving. I
N (Neutral) In this gear to your transmission caused shifting outof "P9' by your warranty.
@ (Automatic ...
Owner's Manual - Page 132
... Cluster -Diesel
30
40
Tachometer 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 inch) when the...
Owner's Manual - Page 188
... pressure? Wear comfortable clothingand shoes you can easily drive in advance. Wiper Blades: Are they all windows clean inside and outside? The exit speed is usually posted. Are all working? Fuel, Engine Oil,... at higher speeds, you need it. The exitramp can check before starting out. If you must start when you delay your vehicle ready for long-distance driving? Is your...
Owner's Manual - Page 197
... in at the heavier loads.
0
You can be driving. This helps your engine and other parts could be used properly.
A good source for this section, and see your GM dealer for this section carefully before you tow a trailer, don't drive over SO mph (80 km/h) and don't make starts at all during the first500 miles (800...
Owner's Manual - Page 251
...could damage your service station operator to both residents and visitors. Many gasolines arenow blended with engine oil. You should ask your tank get it can change.learn the current To restrictions in ...province, contact your part for your vehicle, and you ever run out of diesel fuel,it started again. If you 'll bedoing your auto club, the police or other officials.
It's good...
Owner's Manual - Page 254
Start the engine allow it to idleuntil clear fuel is located on again after driving a short distance or the engine runs rough or stalls-a large amount of contaminated ...the vehicle, thevalve is observed. Turn off , open the water drain valve 2 to Do withUsed Oil" in the "Engine Oil (Diesel Engines)" part, later in this section.
8. Remove the fueltank cap.
3. Stop the engineand close the...
Owner's Manual - Page 258
....
A CAUTION:
Gasoline vaporis highly flammable. All of your engine oil can cause very bad injuries. Don't smoke if you 're going and give your engine and let it idle for leaks. Start your Vehicle Identification Number (VIN). Fuels in Foreign Countries
If you plan on driving in the country where you use leaded gasoline. Your...
Owner's Manual - Page 262
... mark, then you don't, the oil dipstick might not show the actual level. e
To Check EngineOil
h l l out thedipstick and clean it with a paper towel or cloth, then push it again, keeping the tip lower. Engine Oil (Except Diesel)
It's a good idea to check your engine oilevery time you get an accurate reading, the oilmust be warm...
Owner's Manual - Page 263
....The "starburst" symbol indicates that the oil has been certified by the American Petroleum Institute (API), and is located on the driver's side engine valve cover. I NOTICE:
Don't add too much oil that the oil level gets above the upper mark that shows the proper operating range, your vehicle will be
The engine oil filler cap is preferred...
Owner's Manual - Page 264
...OIL NOT RECOMMENDED
As shown in the following chart:
LIGHT DUTY EMISSIONS -GAS ENGINES
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SAE VISCOSITY GRADE OIL... the front of the oil container, and use only oils
that display this new symbol. You should also use the proper viscosity oil for your vehicle. HOT WEATHER
F
+ 100
'80
+60 +40
+20...
Owner's Manual - Page 265
...176;F ( 16°C) beforeyour next oil change. These numbers on an oil container show its viscosity, or thickness.
...OILS ARE AVAILABLE, SA€ 30 GRADE MAY BE USED AT TEMPERATURES ABOVE 40 DEGREES F (4 DEGREES C). SAE 1OW-30
PREFERRED
above 0°F (-18%)
SAE 5W-30
I - HEAVY DUTY EMISSIONS -GAS ENGINES
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING...
Owner's Manual - Page 266
... these words on the container will help you save fuel,
These three things are usually included in Canada, GM Engine Oil) meets all the requirements for your warranty.
If you cannot find oils with the new "starburst" symbol on the front of quality.
0
SAE 5W-30 -Vehicles with Light Duty Emissions (8500 GVWR...
Owner's Manual - Page 273
And, dirt can cause a damaging engine fire. Always have the air cleaner in the Index. See "Scheduled Maintenance Services" in place when you're driving.
6-27 I
NOTICE:
If the air cleaneris off, a backfire can easily get into your engine, which will damage it. Air Cleaner
Refer to the Maintenance Schedule to determinewhen to replace the air filter.
Owner's Manual - Page 350
...engines available. Oil Filter Change*-Every
~
0
0
2 Chassis Lubrication-Every 12 Months, or
3 Clutch Fork Ball Stud Lubrication (5-speed
manual transmission with deep-low only) 4 - Kilometers (000) 1 Engine Oil... 21 Thermostatically Controlled Engine Cooling Fan CheckAH-Every 12 Months or 22 Exhaust Pressure Regulator Valve Inspection* 23 Tire and Wheel Rotation** 24 Drive Axle Service** 25...
Owner's Manual - Page 352
... see "Engine Oil" in this time. 3. CLUTCH FORK BALL STUD LUBRICATION (5-SPEED LOW ) - See"Engine Coolant" in the Index for the proper coolant and mixture to use in these . To ensure proper operation, pressure test the ... they could be lubricated unless their temperature is cold, let them warm up before you or anyone else drives the vehicle.
1. Ball joints and king pin bushings should be...
Owner's Manual - Page 356
... the engine oil is changed, inspect the lines and hoses for wear and cracks.
Remove any necessary repairs are the proper ones. At Least Once Month a
Tire inflation pressure check Check the tires for surface condition. A low fluid level can indicate worn disc brake pads which should be serviced. Inspect brakes more often if driving...
Owner's Manual - Page 358
... exhaust system. Check rearm-ont axle fluid level and addas needed. Every 12 months or at once.
7-24 Oil the control lever pivot point and all body door hinges with engine oil.Do not oil any cables that have high effort or excessive wear. Check vent hose at once. More frequent lubrication may be...
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