What should the compression be for 2009 Toyota Corolla?

Based on the search results, the compression for a 2009 Toyota Corolla can vary. Here are some relevant snippets from the search results:
– One user reported the compression test results for their 2009 Toyota Corolla as follows: 80 psi for the first and second cylinders, 120 psi for the third cylinder, and 130 psi for the fourth cylinder.
– Another user mentioned that their 2009 Corolla had low compression in cylinders 3 and 4, but did not provide specific values.
– A forum post mentioned that the minimum compression for a Toyota Corolla should be around 145 psi, and the maximum should be around 210 psi.
– A tutorial on testing engine compression in a Toyota 1.8L engine mentioned that any compression reading below 144 psi can result in misfires.
Based on these snippets, it seems that the compression values for a 2009 Toyota Corolla should ideally be above 144 psi. However, it is important to note that compression values can vary depending on various factors such as engine condition, mileage, and maintenance history. If you suspect any issues with the compression of your 2009 Toyota Corolla, it is recommended to consult a qualified mechanic or refer to the vehicle’s manual for specific guidelines.

What are acceptable compression readings?

Most gas engine’s compression should be between 125 and 175 PSI while a diesel will generally fall between 275 and 400 PSI. Remember to write down each of your findings. If one or more cylinders looks to be way off in PSI, you can re-run the test again just to check.

Is 90 low compression?

That is, if the compression test reveals less than 90psi, that particular cylinder can be declared “dead.” On the other end of the spectrum, ~200psi is about the most compression pressure you will see in a non-racing gasoline engine.

Can a engine regain compression?

INDEPENDENT LAB TESTS. RESTORE increases and balances compression across all cylinders to near original levels. RESTORE Engine Restorer & Lubricant® is the only product proven to repair worn cylinders and restore compression back to near original levels.

Is 140 compression good?

Since the gasoline engine has a spark plug, only moderate compression is enough, requiring about 140-160 pounds per square inch (PSI). Depending on their size and application, some engines may require a higher compression such as 220 PSI.

What is the minimum compression you should have?

But a good rule of thumb says that each cylinder in a mechanically sound engine should have compression of 130 psi or higher. While I’ve seen some people claim 100 psi is sufficient, the gearheads and other sources I’ve consulted consider that too low. In addition, you want consistency from one reading to the next.

What compression is too low?

No cylinder should have a pressure lower than 75% of the highest recorded value. In this example the highest pressure is 168 psi, so the minimum allowable value will be 0.75 * 168 = 126 psi. In this scenario cylinder # 5 is considered to have low compression, while #2 is just passing.

What is normal compression rate?

between 100 and 120 compressions per minute
The recommended compression rate for adults and adolescents is generally between 100 and 120 compressions per minute. This rate of compression is based on physiological principles, optimizing blood flow, perfusion, and the chances of restoring a normal heart rhythm during CPR.

Is 120 compression good?

In general, a compression reading of 120 PSI or above is considered to be good for most gasoline engines. However, the acceptable range of compression values may vary depending on the make and model of the engine, as well as its age and condition.

Is 90 psi compression good?

That all said, 90 psi is too low, even for a low compression engine.

Is 120 psi low compression?

In general, a compression reading of 120 PSI or above is considered to be good for most gasoline engines. However, the acceptable range of compression values may vary depending on the make and model of the engine, as well as its age and condition.