Asked in Pontiac SunbirdMazda 626Mazda RX-7
88' Pontiac Sunbird non-turbo not starting but cranking has spark and compression but gas is pooling in intake and not getting to cylinder what are possible causes?
Is the compression ratio of a piston inside its cylinder measured mechanically or atmospherically?
Why does your car have bad compression?
Asked in Ford Escort ZX2
What is the cylinder compression for 2.0 engine?
There is no real compression spec for the 2.0 zetec engine. Ford only says that no cylinder should be below 25% or all the cylinders. If it is that cylinder is down. That could be a number of problems such as head gasket or bad rings. Either way. Once you do a compression test yourself I would recommend having a dealership follow it up with a diagnostic. They will be able to give you solutions if there is low compression as far as possible reasons and repairs. Per. ALLDATA Ford NTI/ UTI student
Asked in Combustion Engines
What does it mean if you do a compression check and there is no compression?
It just means that the railway is not compressed. Say that the railway was compressed, then you'd make a compression check and the answer would be positive, but if it isn't it means it's not compressed. When something is compressed, it means that the temperature was too cold for the railway so it compressed. Hope it helped! :P WHAT???? this person is lost. Ok, when you do a compression test and you receive no compression, make sure your test gage is a working gage. with no compression this indicates that exhaust / intake valves are in the open position which stops the cylinder from sealing for compression, possible bent or broken valve,valve spring,or lobe on cam may be worn. Now if you have a low compression reading on a cylinder i recommend you spray WD 40 into cylinder sparingly and test again,called a (wet test ) if compression raises you have bad piston rings, if it stays the same, its a valve issue, possible piston failure
Your 99 Explorer's service engine light keeps coming on It's always 4 cylinder misfire cold start changed wire and plug what gives?
Think a little deeper. Combustion that fails is a misfire. You have addressed the spark side of it. There is a fuel and compression possible trouble. Try swapping the fuel injector for that cylinder with another and see if the misfire moves to the other cylinder. Compression test the cylinder to see if it is in specs. Try a cylinder leak down test and see if it is losing compression. Perhaps there is a carbon build up on the valves preventing good seating?
Asked in Car Batteries, Toyota 4Runner
What kind of battery do you need for a 1990 Toyota 4runner 4-cylinder 5sp?
Asked in Isuzu Trooper
What is the cylinder compression on a 1994 Isuzu trooper?
I'm not sure of the exact values; they should be in your Haynes repair manual. However, if you compression test all of the cylinders and find one that is lower you have a compression problem with that cylinder. It is also possible to have 2 that are lower, this would most likely indicate a warp in the head between those two cylinders. Other causes for compression loss are damaged or gunked up valves that do not close all the way or a crack in the head.
Asked in Toyota 4Runner
Possible causes for over heating of 1994 Toyota 4-runner?
Asked in Noble Gases
How is it possible for a cylinder of helium to fill 700 balloons?
Asked in Cars & Vehicles, Kia Sedona
Possible causes of a loud knocking noise from the engine of a kia sedona 2003?
Asked in Ford Tempo
What are the possible causes of a 90 Ford Tempo cranking but not starting?
Asked in Jeep Liberty Sport
What is the most common cause of an engine knock when accelerating?
Engine knock can be caused by several things. Carbon deposits in the engine can effectively raise the compression ratio of the cylinder. When accelerating, the cylinder gets filled with more fuel and air, and the higher compression ratio causes knocking. Other possible culprits could include spark plugs being too hot or your timing being off.
Asked in Pontiac Trans Am, Chevy Camaro Z28
Why would a 1997 LT1 miss on one cylinder if the spark the injector the compression and valves are working properly?
Why do you get repeated cylinder 3 misfire on 1996 Ford explorer even after replacing plugs and wires?
What would cause a 1999 Toyota Corolla to have an ongoing problem of burning oil very quickly?
Asked in Cars & Vehicles
How do you know if it is a blown headgaskets?
There are several possible indications of a blown head gasket: If the head gasket is blown between adjacent cylinders there will be poor or no compression in either cylinder. Poor compression in any cylinder can be caused by a blown head gasket. That condition can also be caused by a burned valve or piston. Coolant in the crank case can be caused by a blown head gasket. Compression in the coolant can be caused by a blown head gasket. An engine with a blown head gasket usually loses performance and runs poorly or not at all.
Asked in Ford F-150
What should the cylinder pressure be on a F150 5.0?
Asked in Spark Plugs and Wires, Mitsubishi Lancer
Is it possible to replace only one cylinder in a four cylinder 2005 Mitsubishi lancer?
Asked in Math and Arithmetic
Can a cylinder never have the same volume as a cuboid?
Asked in Computer Hardware, DIY Projects
How do you compress files to smallest size possible?
2001 Kia Spectra misfiring on cylinder number one Plugs and wires new ideas on what to check next?
I suggest you run a COMPRESSION TEST on all cylinders. It has been so long, I cannot describe how to interpret the results, but basically, analysis of the test results, both for the suspect cylinder and the others, and the relationship of the differences can tell you a great deal about the condition of the rings and valves. IF the compression in the SUSPECT cylinder is outside of the range of the others, that could be the cause of your miss. A "miss," or "missfire" can result from several causes, LOW COMPRESSION being only one. Low compression can be caused by worn compression rings, improperly seating [leaking] valves, a leaking head gasket, a cracked head or cylinder wall, and probably other causes I've overlooked. Instructions for performing a compression test can be found in basic automotive service manuals, usually available at most local libraries [loan] and/or auto parts supply stores [buy]. There are a few different compression testers available at your local auto parts supply. They all operate in the same manner, some are just designed to be more convienent to use, and thus usually cost more. Before buying any tools or test equipment, get the manual[s] which describe the process, study them until you fully understand the procedure[s], and then, obtain a compression test set. It is possible that some auto parts houses MAY LOAN you a compression tester. If not, then buy the best you can afford.
Asked in Toyota 4Runner
What might cause your Toyota 4Runner to lack power?