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Car ran perfect now it died and has no compression in 2 cylinders and little in other 2 timing belts good no signs of blown head gasket?
Buddhadude
Unfortunately, this is not like changing spark plugs or rotating tires. In order to determine the major cause of the malfunction, you will need to find out if the engine is equipped with mechanical (earlier model vehicles with carburetors) or hydraulic lifters (mostly in fuel injected engines). In the first case, mechanical lifter malfunction can be caused by the lift springs becoming worn and losing their resistance, allowing the valves to stick open, even slightly. These must be removed and tested for consistent strength to specifications and replaced, if necessary. Check the valves for build up and clean with an approved solvent. Replace any valve seals as a worn seal can gum up causing sticky valves. For the hydraulic lifters, they are fed by the oil pressure developed when the engine turns, generally keeping constant pressure. Mechanical lifters can be adjusted by a mechanic, but hydraulic lifters, if clogged by contaminated or old oil, cannot; they will need to be replaced. Also, the oil supply comes through the cam and if it is clogged it can be cleaned out, but the process will involve tearing apart the engine. This is costly and not something you can do at home unless you have all the proper tools. Your best bet will be to have the vehicle taken to an authorized repair shop for the make/model of vehicle and be prepared to dish out some hard earned cash.
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Do you have a bad head gasket when you have little compression and car don't start?
It is very possible that you might have a blown head gasket. However, other causes of low/no compression could be a cracked head, a cracked piston, or burnt valves. ANOTHER ANSWER It depends on the way the compression is down. If it's low on two adjacent cylinders, it's probably a head gasket. If it's just one or more non-adjacent cylinders it could also be burned exhaust valves. If it's low on all cylinders it's probably a slipped timing chain/belt.
How can you tell if the heads are cracked on a 3.8 3800 Series 1995 Camaro?
A compression test would be the easiest way to determine. If you have little or no compression in two or more adjacent cylinders, you either have a cracked cylinder head or a blown head gasket.
350 Chevy not running on all cylinders?
Start by testing the compression. It should be consistent within a few PSI on each cylinder. Any cylinders that have little or no compression probably have a burned valve. If all cylinders are up, check the plugs, wiring and distributor.
Olds 1995 Royale how do you know if you have blown a head gasket besides having water in oil?
Besides water in the oil, you will have little to no compression on the cylinder(s) in the area where the gasket is blown.
How do you fix it Cylinder 5 and 3 when it misfires?
If it's JUST misfiring on cylinders 5 and 3, run a compression test. If the compression is down you'll need to remove the heads and inspect for damage or worn valves. Since you didn't specify what kind of engine, I can only assume either a V6 or V8, and many "V" configuration engines have all even cylinders on one side and odd on the other. If I can make an assumption, I would assume that the cylinders that are misfiring are adjacent to each other, giving a little more concern that it might be a failed head-gasket, but you won't know until the head is removed. But again, check the compression first. If compression is up across all cylinders, focus on electrical. Some engines used "coil packs" which caused a single coil to fire two cylinders. If that's the case you could have a problem with the coil pack or the electronics that fire it.
You are working on a 1990 Ford Escort LX 1.9 L the engine runs a little ruff when it is in park when you put it in drive or revise the engine starts to run really ruff and vibrates You can be going do?
Run a compression test on the engine. If the compression is ok in all cylinders it's probably an ignition or injector problem. If the compression is down in one or two cylinders but ok in the others, you probably have a burned valve.
What is wrong if there is no compression in a engine?
this could be a number of different things. a loose head cover, a bad head gasket, compression rings, if you know how to tell if one of these is messed up, i may be able to help you out a little more.
Is 90 lbs good compression at cylinders?
Sounds a little low to me. Check to see if all cylinders measure about the same. ANOTHER ANSWER That would be good for most engines. What you're looking for is any kind of serious fluctuation in the pressure between cylinders. If you're getting 90 psi consistently, you're in good shape.
93 Ranger 23L has poor acceleration and little power after having timing belt replaced could the pushrods have been bent when the belt snapped?
Run a compression test. If only one cylinder has low compression, it's probably a damaged valve or pushrod. If the compression is low in all cylinders the cam is probably not timed correctly.
What is a sentence using the word compression?
That wound could use a little compression.
Shimmy and shake-one plug all black- plug out compression tester shows 40psi with needle shaking-bad head or ring?
Firstly check the compression against the other cylinders and make a comparison. If there is a significant difference then I would say that the head or head hasket is the most likely cause. Also look for bubbles in the coolant with the engine running, emulsion or creamy residue in the oil is another sign of a blown head gasket. If these checks dont uncover anything, try putting a little thin oil in the cylinder through the spark plug hole, if the compression then increases I would say that there may be a problem with piston rings.
Do you need a gasket when you replace the thermostat?
Yes you need a gasket between the thermostat housing and the engine. Usually a fiber type, should come with the gasket. In a perfect machine, the metal to metal contact would be so exact that there would be no leak even under pressure. This is not the case on most cars. The gasket allows for slight imperfections in this contact area. Even better is a gasket with a little automotive silicone material allowing for a good seal under heat and pressure.
