colorado 2wd 5 cyl 3.5 burns oil, and if not kept accelerated it tuns off no smoke

start stalls at 1 rpm for about 10 seconds very smoothly and then it shakes and turns off if i don't accelerate. It burns oil, the thief light is on, and when put in parking and let go of the brake BEFORE i shut it off everything exept the dash board and the stereo stop working so i unplug the battery and everything works again ohhh and the mileage says 9999999999 PLEASE HELP I NEED MY LITTLE TRUCK
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hi there. Thanks for writing in to YourMechanic.com tonight. It appears rather obvious that your Colorado is experiencing some serious Gremlins. It’s likely an electrical glitch that could be rather hard to pinpoint. The oil smell is going to be caused by an oil leak while other symptoms have multiple possible sources. Here is what I’d recommend. Set up an appointment by clicking this link to have one of our mobile mechanics come to your location to complete an electrical problems inspection, as this will allow them to diagnose the issue and let you know what is damaged and requires replacement. They will also let you know the expected cost so you can determine if the best option is to repair your Colorado or to buy a newer vehicle. I hope we can help save your truck, but it’s always best to get good advice from a mechanic who can inspect the car in person.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

There could be two possible reasons as to why your vehicle is burning oil. (1) It may have an oil leak or (2) it could be burning oil during the ignition cycle. One common problem is if the cylinder walls are allowing oil to leak up from the bottom of the engine, past the piston and into the combustion chamber.
If your engine is low on oil but there isn`t a leak, that means it`s probably being burned inside the engine. A bad PCV valve is a frequent culprit in the case of burning oil–but what is it, exactly? A PCV valve is designed to let air escape when the pressure in the crankcase is too high.
However, a bad PCV valve is a tiny, inexpensive part that can cause an engine to burn oil if it goes bad. Replacing it is fast and easy! If your engine is burning oil, hope that it`s due to a bad PCV valve.
One of the most common reasons for oil burning is simply leaks. Over time, seals and gaskets can degrade, leading to small leaks. These leaks might not be immediately apparent, but they can add up over time, causing your car to burn through oil faster than it should.
Motor Honey is an oil treatment that you add to your car`s regular motor oil. It`s designed to reduce oil burning (and the smoke that it sometimes causes) without having to make any changes to the engine itself. All you have to do is include one bottle with each oil change.
Burning oil is often the result of worn-out parts. For example, worn valve seals and/or piston rings could lead to your car burning oil. Both valve seals and piston rings work to keep engine oil out of the combustion chamber.
Lucas High Mileage Oil Stabilizer helps to control blow-by, dry starts and oil burning – maximizing efficiency, reducing harmful emissions and extending oil life. Lucas High Mileage Oil Stabilizer can also be used as an IDEAL ASSEMBLY LUBE.
Some of the more common factors that can contribute to oil consumption are a clogged PCV or EGR valve or air filter or an excessively rich fuel mixture – often caused by a clogged air filter.
Common signs of a faulty PCV valve include excessive oil consumption, oil leaking, a blocked breather filter, and reduction in overall performance.
Burning oil is often the result of worn-out parts. For example, worn valve seals and/or piston rings could lead to your car burning oil. Both valve seals and piston rings work to keep engine oil out of the combustion chamber.
Burning oil is a common problem, but when it is ignored, it can do major damage to your car`s engine. Common culprits that result in burning oil include worn valve stems, guides and seals, and piston rings, all of which can allow oil to seep into combustion chambers.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

colorado 2wd 5 cyl 3.5 burns oil, and if not kept accelerated it tuns off no smoke
ANSWER : Hi there. Thanks for writing in to YourMechanic.com tonight. It appears rather obvious that your Colorado is experiencing some serious Gremlins. It’s likely an electrical glitch that could be rather hard to pinpoint. The oil smell is going to be caused by an oil leak while other symptoms have multiple possible sources. Here is what I’d recommend. Set up an appointment by clicking this link to have one of our mobile mechanics come to your location to complete an electrical problems inspection, as this will allow them to diagnose the issue and let you know what is damaged and requires replacement. They will also let you know the expected cost so you can determine if the best option is to repair your Colorado or to buy a newer vehicle. I hope we can help save your truck, but it’s always best to get good advice from a mechanic who can inspect the car in person.

Still burning oil – CCV replaced – No smoke at startup/while driving I’m burning through roughly 1 qt. oil every 600-800 miles. Al
ANSWER : Hello. You should start by checking your antifreeze. If your antifreeze is too low, your car could just be compensating for the coolant its missing.

I always put 1/2 of a can of Seafoam in my engine before doing an oil change. I let it run for 10 min before changing it and the drain oil and replacing the oil filter. This will help clean out sludge built up in your engine. Please note that it is not safe to drive your car with the Seafoam in your engine. Do not run it for more than 15min. If you need help having this addressed, a qualified professional from YourMechanic can come to your car’s location to give you a thorough diagnosis of the oil issue and pinpoint the correct actions that should be taken.

lost all oil pressure, replaced the oil pump, low oil sensor, oil pressure sensor, oil pan gasket,
ANSWER : The fuel pump will not stay on if you loose oil pressure. This is why it is shutting off. The loss of oil pressure may be from bad crankshaft bearings or camshaft bearings. The engine oil pan should be removed and the oil pump needs to be checked to ensure that you put in the pick up tube seal to the pump and connected the pump to the block. Then remove at least one main bearing cap and inspect the bearings for excessive wear and crankshaft damage. If you need some help with this, consider YourMechanic, as a certified technician can help diagnose the issue with your oil pressure firsthand and help you fix it accordingly.

Oil was leaking, put in over 4 qts of oil and oil leak stopper. White smoke coming tailpipe,engine shakes, car dies. Oil leaking.
ANSWER : Oil additives are not recommended by any vehicle manufacturer for any reason. Additives that purport to resolve oil leaks are useless, a waste of your money, and may result in engine damage. Every vehicle manufacturer strongly recommends against use of these materials. There is only one recommended and approved repair strategy when it comes to oil leaks: fix the leak.

You can only add the manufacturer specified amount of oil to an engine. If you add too much oil, or too little oil, that will cause engine damage. You should check the engine oil dipstick to determine if there is presently too much oil in the engine. If there is too much, the excess will have to be removed to prevent engine damage.

The leak that you are referring to can be repaired if you request an oil leak diagnostic. If you have further questions or concerns as you decide what to do, do not hesitate to re-contact YourMechanic because we want you to make the most of your repair dollars and help you get the best possible results.

Burning engine oil and have gray smoke coming from below the engine and the tailpipe.
ANSWER : Hi there. If you are getting gray smoke from under the vehicle and in the engine compartment, then there is an external oil leak. The oil is leaking onto the exhaust pipe and then burning off. This is why you are not seeing any oil on the ground. As for the engine smoking some oil, then the valve guide seals on the cylinder heads are possibly leaking causing oil to enter the combustion chamber through the intake valves.. Another way that the engine could be getting oil into the combustion is having a positive crankcase ventilation valve (PCV valve) being stuck causing oil to enter the intake system. To check this, check the intake tubing and see if there is any oil present. If there is oil present, then I recommend replacing the PCV valve to prevent any oil from going into the combustion chamber. The external oil leaks could be, a leaking front engine seal, a leaking rear main seal, a loose oil filter, oil cooler lines could be split or loose, or a valve cover gasket could be leaking. If you need further assistance with your engine using a lot of engine oil, then seek out a professional, such as one from Your Mechanic, to help you.

Just found out that my vehicle has been leaking oil for at least 2 yrs. Would smelling that burning oil smell cause health issues?
ANSWER : Hi Larry. As the co-founder or a non-profit that focuses on education, awareness and screening for respiratory diseases targeting the automotive community, I am happy to answer a few questions for you to clear up some facts. First, there are multiple materials, chemicals, and substances on a vehicle that are emitted from the mechanical actions of the vehicle that MIGHT reduce respiratory function and lead to a diagnosis of COPD (Chronic Obstructive Pulmonary Disease) or other respiratory diseases. However, it is nearly impossible to prove the precise source that can cause respiratory problems. Whether due to excessive exposure to these substances, social choices (smoking), workplace environment, indoor air quality in the home, even certain genetic conditions, it is possible for lung function to decrease over time. At Right2Breathe.org, we always recommend that anyone that is experiencing any breathing issues, visits their primary care physician and have them complete a spirometry exam (a non-evasive breathing test). This will allow them to measure your lung’s function and begin the official diagnosis process. Thank you very much for asking this important question. Feel free to contact us if you have further questions.

Oil consumption. Burning oil. Oil light turns up on idle.
ANSWER : Hi there, thanks for writing in. The valve stem seals are the most common cause of this on your engine. When they fail, it requires that the cylinder heads be removed and rebuilt to fix it. The piston rings can also cause this but they are not as common. Unfortunately there is not anything, not even heavier oil that will fix this. You will need to have the heads rebuilt.

Smoke and possible oil leak after having oil serviced
ANSWER : Hi there. Since you drive the vehicle so little it can still be residual oil. It can take some time for it to burn off, especially if it pools up when it is spilled. If there is no oil left on the engine from the service then it is probably leaking from the valve cover gasket. This is the most common leak on this engine. If you want to have this oil leak found, consider YourMechanic, as a certified mechanic can come to your home or office to pinpoint the oil leak and and help you repair it accordingly.