The Toyota Tacoma contains either a 4-cylinder or a V6 engine. Involve the compression tester into one of the spark plug holes.3. Eccentric person the starter to rotate the engine. This builds compression in the cylinder, causing the arrow on the gauge to hopping.
1. Prepare for the compression probation by warming up the engine in the Toyota Tacoma. Whether you perform the trial while the engine is algid, the results Testament not be accurate. Turn off the engine and disable the ignition method to avoid electrical shock during the countdown.
2. Remove all of the Glimmer plugs from the engine. Whether the Toyota Tacoma contains a 4-cylinder engine, there Testament be four Glimmer plugs, and whether it has a V6 engine, there Testament be six. When the engine runs poorly, burns oil or loses force, a compression analysis is a accelerated and evident fashion to bonanza away the foundation. After performing the evaluation, compare the results to the recommended compression ratio to diagnose problems inside the engine, such as worn cylinder walls, piston rings and valves.
Instructions
The remain unit that it jumps to is the compression character for that cylinder. Draw up down the symbol and motion on to the consequent Glimmer plug gap.
4. Perform the compression approval on Everyone of the Glimmer plug holes, keeping a record of all the compression numbers and then compare them. The numbers should be similar and fall within 10 PSI of each other.
5. Compare the compression numbers to the recommended compression ratio for a Toyota Tacoma. For model years 2005-2008, trucks containing a 4-cylinder engine have a ratio of 9.6:1 and trucks with a V6 engine have a ratio of 10.0:1. For model years 2002-2004, a 4-cylinder engine has a ratio of 9.5:1 and the V6 has a ratio of 9.6:1. Compression numbers should fall within 15 PSI of the recommended compression ratio.
6. Retest any cylinders that have a low compression number. Add a small amount of motor oil to the cylinder before performing the test to see if the number increases. If it does, the cylinder has worn walls or piston rings. If it stays the same, the cylinder has worn valves or valve seats.
