Question about Toyota Cars & Trucks

Open Question

How do I stop my engine from pinging, in my 1996 Toyota Rav4

I have tried higher octane fuel and or octane boosters. I have as yet been unable to find any way to change the ignition timing, it appears fixed and not changable. No engine check light and the engine runs strong. Just has pinging when under various load and sometimes non load conditions. Thank You

Posted by on

  • Patrick Nov 21, 2012

    The following appeared to work to limit the pinging. I modified the distributor to change the setting position for either advance or ****** it, then advanced distributor setting. Then I cleared the computer and reset it by disconnecting the battery and reconnecting. The theory was to reset the computer to except the changed timing position. So far the pinging has almost completly disappeared, with only an occasional ping under extreme conditions. Engine runs normal with good power and fuel economy, but without the ping.This procedure appears to have resolved the problm. Thanks.

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Can an 2005 acura run safely on regular gas


The only reason to run higher octane fuels to to reduce the chance of (engine ping) or (engine knock).Try the regular gas(dont completely fill car) and take notice under hard acceleration if engine makes a pinging noise.If pinging happens then add some high octane gas to compensate for regular.Unless this is a modified engine the regular gas will not do any damage it will result in pinging and loss of fuel milelage.

Feb 13, 2011 | 2002 Acura 3.5RL

Tip

Octane Myth


What is octane? Octane cannot be seen, but it is of utmost importance when it comes to gasoline. One thing for sure, higher octane fuel costs more. Allot more! Simply put, octane is a measure of gasoline's ability to resist detonation, which you hear as pinging and knocking in your engine. The higher the octane the more the fuel can be compressed without detonating before you want it to. Detonation, ping, knock, whatever you want to call it, occurs when the air/fuel mixture ignites before the spark plug fires. The mixture ignites from compression and not from the flame of the spark plug. In other words, the higher the octane the less likely it is to ignite prematurely. The only benefit to a high octane fuel is that it allows an engine to run at a higher temperature and with a higher compression ratio without pinging. Higher octane fuel does not provide more energy, more power, better mileage, more torque, burn cleaner, clean your engine, and is not better for the environment. If the engine is pinging when using the correct octane fuel, then it may be necessary to move to the next higher octane to prevent pinging, and damage to your engine, unless there is another problem. If you are using higher octane fuel for any of these reasons, STOP, you are throwing your money away. Also, never use a lower octane fuel than is recommended by the manufacture. If the manufacture recommends 89 octane then use 89. If they recommend 87 then use 87. The key is what was the engine designed to run at to achieve optimum performance and mileage? One exception is when you are towing a heavy load with a vehicle designed to run on 87 and you experience pinging. In that case it may become necessary to switch to 89 while towing. In conclusion, race car engines are designed to run on high octane fuels due to their high compression engines. You cannot make your engine a race engine just by upping the octane. Save your hard earned money, and use exactly the octane you need.

on Jun 19, 2010 | Honda Accord Cars & Trucks

1 Answer

Developing a ping... not bad gas, low miles


It may not be bad gas, but it could be the wrong octane rating for that engine. Check your owner's manual and see what octane is recommended for that engine. If you're running 87 octane and it requires 91 or higher octane, then you need to be running the higher octane fuel. By running lower octane fuel in an engine that requires higher octane, your getting pre-ignition, the knocking sound you hear. What's happening is that as the piston moves up on the compression stroke, the gas/air mixture is compressing and as the pressure goes up, so does the temperature of that mixture. It's possible that temperature can get so hot that the gas/air mixture ignites from the high temperature and not from the spark plug. Higher octane fuel will help this since higher octane fuel is harder to ignite. I say try running some 92 or higher octane fuel in your car and see if you still hear the knocking.

Jun 06, 2010 | 1986 Lincoln Town Car

1 Answer

Heats up to normal temp injectors stop working...


Try higher octane fuel full tank with fuel cleaner/octane booster and give the car a long run with a blast.

Oct 21, 2009 | 2000 Toyota Celica

1 Answer

2003 stype jaguar chek engine light went after low octane gas was put in


thats because of spark knock which can damage the engine(pinging). if you have not hurt any thing, immediatly put in some octane booster and then premium fuel. also keep your foot out of it to keep the load off the engine to reduce pinging until the yucky gas is gone. the light should go out on its own when the correct octane fuel is in use. dont use anything lower than 91 octane in it or ull b sorry...

Aug 24, 2009 | Jaguar S-Type Cars & Trucks

1 Answer

Crown Victoria Pings


A couple a things to look for one is to low octane fuel try using prem fuel 2 the ignition timing can be to slow or even to fast try fuel first. You can also get an octane booster from most auto parts store

Mar 18, 2009 | 1996 Ford Crown Victoria

1 Answer

96 toyota 4 runner won't run


try replacing your fuel filter and spark plugs, engine pinging results from a lower octane than recomended by the manufacturer and dirty gas being burned inside the combustion chamber. good luck!

Dec 02, 2008 | 1996 Toyota 4Runner

1 Answer

96 rav4


I'd recommend you buy an aftermarket service manual that would have enabled you to check for this yourself but if your engine uses an anti-knock sensor, it has probably failed.

These detect the distinctive sound of pre-ignition and ****** the ignition timing to prevent this from occurring, compensating for the lousy gasoline we have.

I would check and correct soon; if ignored, this can punch holes in pistons over time.
If you can't do this real soon, try using higher octane gasoline, that may help.

Aug 10, 2008 | 1996 Toyota RAV4

1 Answer

V6 calibra engine pinging


using that high of octane fuel can cause the problems you might be having. using a higher octane is great but higher octane means higher cylinder pressures which pulls a very high demand on th ignition system, you need the ignition system to overcome aif/fuel and compression/cylinder pressures. try lowering the octane of upgrading your ignition system. the kocking/pinging you are hearing is incomplete combustion sounds. hope this helps

Jun 05, 2008 | 1995 Saab 900

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

54 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

79186 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8836 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...