Question about 1995 Buick Century

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On 95 buick century 4 cylinder, if timing chain breakes, does it cause other internal engine damage? valves stems etc? what are the steps in replacing timing chain?

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Yes your pistons will come shooting out the motor

Posted on Sep 02, 2010

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What are the symptoms of a broken time chain on a 2006 4 cylinder Toyota tacoma


Strange things happen when a timing chain breaks. This chain drives the camshaft at exactly half the speed of the crankshaft. If the chain breaks it could jam the crankshaft so that the engine can't turn, even by hand. If the engine does turn and the chain is broken, you will hear an uneven cranking sound coming from the engine.
What usually happens is that one or two cylinders end up with all valves closed, and this causes a high compression as the engine is turned by the starter. The valves on the other cylinders remain open all the time and there will be no compression on these., so the engine sounds as if it is turning fast, then slow in very quick succession.
It often happens that, because the timing is out for the short while that the engine turns without the timing chain, the valve timing is out by so much that the pistons strike the valves and bend them, so that there is no compression whatsoever, and when you crank the engine with the starter, the engine just spins freely. In any case, whatever the symptoms, the engine will not start!

Jan 05, 2015 | Toyota Cars & Trucks

1 Answer

2001 buick century P0304 step on gas engine light starts flashing


P0304 is engine misfire #4 cylinder Several things can cause a misfire #1 electrical which you have covered #2 Mechanical Test engine compression is should be around 150 cranking and 120 running . internal valve train components can cause bad compression and the valves then self. #3 fuel injector can be the cause suggest swapping with a know good cylinder and see if misfire follows injector.

Aug 19, 2014 | 2001 Buick Century

1 Answer

If my1991 buick park ave needs a timing chain can I drive it at all


if valve timing off due to worn timing chain engine wont start.if you suspect timing chain need replacing if you hear slapping noises best replace timing chain quick as possible if you keep driving timing chain will break cause engine damage.

Aug 06, 2013 | 1991 Buick Park Avenue

1 Answer

Timing chain broke on my 96 cavalier 2.2 ohv. Replaced the chain and tensioner but now the car runs rough necause of a miss n the car. The motor had to be hoisted up in order to change the timing chain im...


If the chain broke while the engine was running, and I presume it did, it is possible that you may have damaged the valves. When the chain breaks the cam shaft stops moving and the valves stay in their last position. The pistons continue to move until the engine comes to a stop. An open valve can be hit by a piston, sometimes breaking the valve or just bending the shaft. Also you have to be sure the new chain has the cam shaft and crank shaft properly timed. As I understand that that engine does not have timing marks on the chain sprockets. To test for damaged valves, remove the spark plugs and test the compression in each cylinder by cranking the engine while holding the compression gage in the spark plug hole. All the cylinder should have the same pressure within about 15 psi. A cylinder with damaged valves will not have any compression pressure. If you are unsure about the valve timing check into how that engine is timed. I don't have that information but if is out of time it has a very major effect on the engine performance and idle. I hope this gives you a place to start looking for the cause of the mis. Good luck.

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Gaker

Jun 22, 2011 | 1996 Chevrolet Cavalier

1 Answer

I have a 99 buick century 3.1 and it jumped time so i replaced the timing chain( and yes i lined the dots up on the gears) and while i was at it the crankshaft and camshaft sensor but it still wont start!...


3.1 i belive is an interferance engine
if it jump timming you would have valve damage that could make it hard start
to no start deppending on damaged to valve train
best to remove all sparkplugs and take a compression test on each cylinders

May 21, 2011 | 1999 Buick Century

2 Answers

When the timing chain breaks does it usually damage anything else or will replacing the timing chain and gears take care of the problem?


When the timing chain breaks the cam quits turning. Any valves that are open, remain open.
If the motor is turned over trying to start it or bump starting it in gear, the pistons come up and
hit the open valves. Bent valves are common. If it is a 4 cylinder only a couple valves will be open
at a time so you may damage 2 or 4 (there are usually 2 per cylinder so a 4 cylinder has 8).
You could replace the chain, make sure the timing marks align with eahother and the chain but
just getting the cam and crankshaft to alignment could cause some damage. Good luck. I did
it to mine once. Bent 4 of the 8 and had to pull the head, sent to the machine shop and reassemble.
I tried to bump start mine down a 2 mile hill. Ohh well! It's fixable.

Mar 29, 2011 | Daewoo Leganza Cars & Trucks

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AT WHAT MILEAGE SHOULD A TIMING CHAIN BE REPLACED IN A 2001 FORD ESCAPE?


There is no specified mileage. Timing chains last a lot longer than timing belts and the rate at which they wear can depend more on the frequency of oil changes and engine use or abuse. The general rule of thumb most shops go by now; if it's getting noisy, then it's time to pull the timing cover. Often times it's not the chain itself, but the chain guides that have failed. Either way, a timing chain job will involve new guides, tensioner, and chain. It's an expensive job, no need to rush into it unless you know you have something coming apart and noise is your first indicator.

Jan 17, 2011 | 2001 Ford Escape

2 Answers

Are the V6 engines Free spinning?


Hi Lukegerny,
No,the V6 engine is not free spinning. If the timing chain breaks, leaving the valves open as the piston moves through its travel,there will be damage to the valves.How much damage will depend on speed of engine and length of time it ran. You can perform a leak down test to check the condition of the pistons and valves. It will tell you if the valves are not sealing,without having to take it apart. Thanks,Chuck.

Feb 27, 2010 | 1998 Ford Explorer

4 Answers

Bronken Timing belt. Could this have damaged other things in car


If you 2000 Dodge Stratus is equipped with either the 2.0 Liter (SOHC) 4 cylinder engine or the 2.5 Liter (SOHC) V6 then you have serious engine damage. Both these engines are interference engines. When the belt breaks the pistons will make contact with the valves thus causing damage. The belt on the 4 cylinder should have been replaced at 100,000 miles. The belt on the V6 should have been replaced at 60,00 miles. At 60 mph you for sure are going to have some damage. How much damage, you will know when they open it up.

Oct 02, 2009 | 2000 Dodge Stratus

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