Why does my 3.0 liter motor run rough when I accelerate and blows blue smoke?

Generally rough idle ; once you accelerate the problem goes away. I hope this helps you. Mark

It actually means this. Cut with rough blows.

There could be several reasons that your 1995 Chevrolet pickup truck, will not accelerate and idles rough. The most common reason is a plugged fuel line.

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Motor is idling rough.

yes mine had a really rough idle and it turns out the motor mount needed replacing

u have a cylnder low on compresson

The weight of sand greatly depends on the density of individual grains. However, a rough estimation of a liter of sand is about 3 pounds.

because a Saab has cam pistons , so your Saab is a 2.5 liter v6.it runs at a low rpm because you probably need to change the MOTOR OIL. people have been asking me that!!!

.Mixing a small amount of oil in the diesel fuel will not hurt a motor. The motor will run rough and produce black smoke.

The idle could be a number of things. A basic tune up might be needed. They are also common to get minor vacuum leaks that will cause it to idle rough. The only light is a bad thing. It means you do not have enough oil in your motor. So when you are stoppong it is sloshing away from then sensor and you accelerate it gets back to it. Check your oil level and add…

Try a compression test to see what results you get.

Check/ replace the TPS if the idle is up and down.

One liter of water weighs one kilo so a rough guess is that one kilo of molasses will weigh over one kilo

You may simply need to clean the MAF Sensor. Simple fix.

If white smoke is coming out of the exhaust when the engine is warmed up , it sounds like engine coolant is getting into an engine cylinder

Check the motor mounts.

A liter is slightly larger than a quart. You can use a rough conversion of 4x, although the exact answer is slightly less than 4x

Rough idling is whenever the vehicle's motor "misses" or does not fire causing an imbalance and a loss of rotation reducing the motor's power and causing excessive shaking.

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My Celica is doing that as well. my uncle knows a thing or two about cars said it could be a Catalytic converter problem...

plugged catalytic converter

A rough idle on 1990 Lincoln Town car with a 5 liter engine can be caused by the fuel injectors. The least expensive way to test this is to purchase a fuel additive designed to clean injectors. If the problem persists a mechanic should be consulted.

Engine miss or rough idle, or broken motor mount

The most classic symptom is erratic or rough idling.