Question about 1986 Chevrolet Chevette

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1986 chevette has alot of knocking coming from the engine.Lifters have been adjusted,but problem still persists, what else could it be?

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The rods on the bottom end and if it`s that you will need a complete rebuild of the motor or get a rebuilt motor and use the old motor as your core deposit

Posted on Sep 10, 2009

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Lifters tick. Rod bearings knock(typically the harder you mash the gas, the louder the knock). poor quality gas can do it if you need a tune-up.

Posted on Sep 10, 2009

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1 Answer

I have a 1986 isuzu pickup it is a 2.3L 4cyl 5 speed 4x4, whenever it is given higher gas it tends to knock quite loudly, timing belt is fine and all fluids seem to be up where they should be.


the knock is most likely detonation or spontaneous combustion
it comes from incorrect air / fuel ratio, incorrect ignition timing,
incorrect rpm for the throttle setting
It is detrimental to the engine as the increased combustion temperatures will melt piston tops if allowed to persist unfixed
start by running the fault codes to find the problem area
( most likely a heated oxygen sensor (HO2S) in the exhaust manifold not reporting correctly to the ECM which controls the injector settings

Sep 28, 2016 | 1986 Isuzu Pickup

1 Answer

CAN YOU ADJUST THE LIFERS


No Vehicle
No Engine

Not many vehicles have adjustment

Your not getting rid of engine noise
with a valve adjustment

Nov 25, 2014 | Cars & Trucks

1 Answer

Engine sounds like tek tek tek tek whenver it is running


Lifters & rockers in the head will wear over time and usually will require them to be adjusted. Thats really not that hard of a job if you are a Gear Head, and have a few basic tools. If not go spend some money with your local mechanic and have him adjust your lifters. As long as its more of a tick tick tick and not a knock, knock,knock. If its a knock, its in the lower part of the motor and its time for you to start looking for something else to drive. Good Luck!!

Jun 11, 2012 | 2002 Kia Sportage

1 Answer

I am looking for the vacuum diagram for a '86 Chevette. gas engine. Can you help?


you could go to a library and see if they have a book for this year and model of car as it will have the vacume hose routing diagram in it,

Sep 18, 2011 | 1986 Chevrolet Chevette

1 Answer

Engine light come on


Go to auto parts stoer and have them scan the computer for codes.

Mar 03, 2011 | 1986 Chevrolet Chevette

4 Answers

MY 2000 Montero Sport has a loud knocking when i Start it UP ESPECIALLY WHEN ITS COLD IT GOES AWAY AFTER IT WARMS UP


Sounds like a hydralic lifter issue. These lifters operate the cylinder valves and run off oil pressure. When the engine is cold and the oil is thick worn lifters tend to rattle. When the engine warms up, everything expands and the lifters stop rattling. There is no easy cure for this except replacing the lifters. Sorry....

Dec 02, 2009 | 2000 Mitsubishi Montero

1 Answer

Lifters are knocking and there is a missing in


lifters tick and noise is upper end of engine if lifters are making noise could be from a bad valve,bad lifter ,push rod ,oil pressure,rocker arm - need to take do compression test find out if valve problem and which cylinder is problem also take off valve cover and check for proper oiling of valve head and look to see if and are damaged or loose-------a knocking sound usually comes from lower end of engine,rod knock etc.and thats usually rebuild of engine

Nov 22, 2009 | 1994 Isuzu Trooper

1 Answer

86 ford lifters


i would suspect that your lifters are weak therefore the noise .or the rocker arms need adjustment i would try adjusting them to specs and see if that solves it, if not either the lifters are weak and need replaced or your cam lobes are worn. if you have to replace the lifters you must replace the cam as well . please rate this thanks

Sep 26, 2008 | 1986 Ford F150 SuperCab

1 Answer

Upper engine knocking


I suggest if you know how to work on cars, adjusting your lifters, this is the common problem with those motors.

Sep 10, 2008 | 2003 Mazda MPV

2 Answers

Ticking noise


check your oil, may be low and check the radiator level...

Jul 25, 2008 | 1995 Pontiac Sunfire

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