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Question posted by Charlesrigdon1982 on September 21st, 2013

Sonoma 2000 Leaking Coolant.

Leaking coolant. Not from any lines from radiator or any lines at all. It's running down we're the pullys are in the front. in the last two months it started hesitation when driving, Rpms fluctuate and gas is going extremly fast. upon start up rpms rev to 2500 then after about a min level out. It also does it putting it into gear. Drive and reverse. Sometimes it just wants to go even with brakes applied. oil is not milky , trans fluid is still red. I just replaced distributer, cap, plugs, wires. Fuel filter. Pcv valve, throttle body sensor, about a month ago heater stopped working just blows cold. 2000 gmc sonoma 130,000 miles 4.3 liter v6 vortex engine. Also letting of the gas it feels as tho it wants to slow down . Any suggestions. My mechanic is lagging and it's my transportation so I gotta do it myself.

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Related Manual Pages

Owner's Manual - Page 2

Bumper-to-Bumper 3-years/36,000 miles (60 000 km) Limited Warranty Every 2000 Sonoma under warranty is backed with the following services: 1-800-GMC-8782 ( For vehicles purchased in Canada, call 1-800-268-6800) that provides in an emergency: ...

Owner's Manual - Page 80

... in a minimum of the key. When the engine starts, let go of the engine coolant heater is designed to START. If you have your starter. 2. Wait about 15 seconds between each try to starting and better fuel economy during engine warm-up. When the engine starts, let go of four hours prior to help . For more seconds...

Owner's Manual - Page 219

... B. If it cools down. A. Cooling System When you may have a leak in the radiator hoses, heater hoses, radiator, water pump or somewhere else in the cooling system. 5-10 Radiator Pressure Cap C. Engine Fan When the engine is cold, the coolant level should be at least up to lift the hood, here's what you'll see...

Owner's Manual - Page 220

... (50 000 km) or 24 months, whichever occurs first. NOTICE: When adding coolant, it is important that you use of coolant other than DEX-COOLR is added to be very hot. If it could cause an engine fire, and you drive the vehicle. If you can be no leak, start the engine again. Damage caused by...

Owner's Manual - Page 221

...'t get the overheat warning. CAUTION: (Continued) NOTICE: In cold weather, water can freeze and crack the engine, radiator, heater core and other liquid like alcohol, can be burned. Use the recommended coolant and the proper coolant mixture. 5-12 Your engine could catch fire and you or others could get too hot but you...

Owner's Manual - Page 222

... cool before you can try. You can add the proper coolant mixture directly to the radiator, but be burned if you spill coolant on a hot engine. Don't spill coolant on hot engine parts. CAUTION: You can be sure the cooling system is at the ADD mark, start your vehicle. Coolant contains ethylene glycol and it . 5-13

Owner's Manual - Page 224

... you turn it first stops. (Don't press down while turning the pressure cap.) If you hear a hiss, wait for that to the Radiator 2. How to Add Coolant to stop. You can remove the radiator pressure cap when the cooling system, including the radiator pressure cap and upper radiator hose, is still some pressure left. 5-15

Owner's Manual - Page 225

Fill the radiator with the proper DEX-COOLR coolant mixture, up to the ADD mark. 5. Then fill the coolant recovery tank to the base of the filler neck. (See "Engine Coolant" in the Index for more information about the proper coolant mixture.) 4. Put the cap back on the coolant recovery tank, but leave the radiator pressure cap off. 5-16 3.

Owner's Manual - Page 226

... filler neck. 8. 6. By this . 5-17 Start the engine and let it run until the level reaches the base of the filler neck, reinstall the pressure cap. Then replace the pressure cap. Be sure the arrows on the pressure cap line up like this time, the coolant level inside the radiator filler neck may be lower.

Owner's Manual - Page 243

... Fuel Container Checking Things Under the Hood Engine Oil Engine Air Cleaner/Filter Automatic Transmission Fluid Manual Transmission Fluid Hydraulic Clutch Rear Axle Four-Wheel Drive Engine Coolant Radiator Pressure Cap Power Steering Fluid Windshield Washer Fluid 66-32 6-36 6-37 6-43 6-45 6-53 6-54 6-56 6-57 6-60 6-61 6-61 6-62 6-67 6-67...

Owner's Manual - Page 269

... than DEX-COOL is designed to the system, premature engine, heater core or radiator corrosion may result. Damage caused by the use of lubricant to add coolant when it is at 30,000 miles (50 000 km) or 24 months, whichever occurs first. When the differential is important that you use . Give boiling...

Owner's Manual - Page 270

..., have your dealer check your warranty. Plain water, or some other parts. These can boil before the proper coolant mixture will. Too much water in the mixture can freeze and crack the engine, radiator, heater core and other liquid like alcohol, can be burned. If you don't need to improve the system...

Owner's Manual - Page 271

... cap -- The vehicle must be on hot engine parts. CAUTION: You can allow steam and scalding liquids to add coolant at ADD, or a little higher. when the engine and radiator are hot. Add coolant mixture at the recovery tank, but be careful not to spill it will almost never have to blow out...

Owner's Manual - Page 272

... (105 kPa) pressure-type cap and must be tightly installed to prevent coolant loss and possible engine damage from overheating. A fluid loss in the system or you hear an unusual noise. Radiator Pressure Cap Power Steering Fluid NOTICE: Your radiator cap is a leak in this system could indicate a problem. Have the system inspected and...

Owner's Manual - Page 274

... damage your washer system and paint. The other parts of the brake system. The first is leaking out of the washer system. Don't mix water with DOT-3 brake fluid. This allows for ...system fixed, since a leak means that the brake fluid goes down . When new linings are only two reasons why the brake fluid level in the reservoir might go down to -use engine coolant (antifreeze) in , ...

Owner's Manual - Page 275

...So, it isn't a good idea to see if there is a leak. If you add fluid when your vehicle could be burned, and your linings are worn, then you'll have too much fluid when you have ... brake fluid reservoir. After work is done on the brake hydraulic system. Adding brake fluid won't correct a leak. The fluid level should add (or remove) brake fluid, as necessary, only when work is done on the...

Owner's Manual - Page 341

... 150,000 Miles (240 000 km) j Drain, flush and refill cooling system (or every 60 months since last service, whichever occurs first). An Emission Control Service. Inspect hoses. DATE ACTUAL MILEAGE SERVICED BY: 7-29 See "Engine Coolant" in the Index for what to use. Pressure test cooling system and pressure cap. Clean...

Owner's Manual - Page 353

See "Engine Coolant" in the Index for what to use. Pressure test the cooling system and ... and filter. An Emission Control Service. An Emission Control Service. Long Trip/Highway Scheduled Maintenance j Inspect spark plugwires. Clean radiator, condenser, pressure cap and neck. Inspect hoses. j Replace spark plugs. An Emission Control Service. DATE ACTUAL MILEAGE 150,...

Owner's Manual - Page 359

.... Inspect the power steering lines and hoses for damage, tears or leakage. Clean and then inspect the drive axle boot seals for proper... are inspections and services which could cause a heat build-up , binding, leaks, cracks, chafing, etc. See "Service and Owner Publications" in the Index...lack of the radiator and air conditioning condenser. See "Engine Exhaust" in the Index. Replace seals...

Owner's Manual - Page 360

... lines and hoses for leaking. Check constant velocity joints and axle seals for proper hook-up, binding, leaks, cracks, chafing, etc. Replace any components that have your brakes inspected more often if your driving...for wear and rotors for wear and cracks. Transfer Case (Four-Wheel Drive) Inspection Every 12 months or at transfer case for damaged or missing parts. Do not lubricate accelerator ...