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What can cause pinging in engine when warm?

Water pump and timing chain have been replaced recently

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Being out of time will cause spark knock, also may run the engine a little hotter. Over heating also causes this.

Posted on Mar 29, 2015

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  • Cars & Trucks Master
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Several things but this link covers most .....

http://www.misterfixit.com/deton.htm

Posted on Mar 29, 2015

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I changed my 1400 Citi Golf water pump and now I have idling at 1500 when warm and a"wirring"sound and "Pinging"on acceleration, but only when its warm


I would suggest tat you have the valve timing professionally checked Pinging ( detonation) is from air/fuel mixture and ignition timing and the sound may be from incorrectly adjusted /aligned tensioner pulley on the cam belt.

Dec 04, 2014 | Cars & Trucks

2 Answers

My 04 seabring is still overheating after replaceing the thermostat, and then wont start


If you have the 2.7L engine, you may have a bad water pump. The water pump is turned by the timing chain. When the water pump on those particular engines go out, tension on the chain goes away and retards the camshafts bad enough for it not wanting to start. Pull your oil dipstick out and see if you see signs of water in the oil. If there is, this is your problem. When the water pump goes out on those engines, it'll drain water straight into the front of the oil pan.

Mar 10, 2013 | Cars & Trucks

1 Answer

Replace water pump 95 Nissan maxima


Remove the Old Water Pump
  • 1

    Place a drain pan underneath the radiator. When the engine is cool, drain the cooling system from the radiator into the pan.

  • 2

    Place a car jack underneath the oil pain to support it. Also, to protect the engine parts, put a block of wood onto the jack.

  • 3

    Disconnect the negative battery cable and remove the engine mount and bracket on the right side.

  • 4

    Take out the drive belts as well as the idler pulley bracket, the chain tensioner cover and the water pump cover.

  • 5

    Push the timing chain tensioner sleeve up and put a stopper pin in it to keep it from slipping. Take out the chain tensioner assembly.

  • 6

    Turn the crankshaft pulley in a backward motion until it rotates 20 degrees.

  • 7

    Place 2 MB bolts into the threaded holes of the pump and tighten them by hand, alternating turning a half turn each at a time unit they reach the timing chain rear case. Doing it this way will prevent damage to the timing chain rear case.

  • 8

    Remove the water pump, throwing away the old o-rings. Make sure not to let the water pump hit the timing chair.

Install the New Water Pump
  • 1

    Clean all the mounting surfaces on the water pump and covers.

  • 2

    Install the new water pump with the new o-rings, tightening the bolts to 75 to 95 inch pounds (8.5 to 10.7 Nm).

  • 3

    Turn the crankshaft pulley back to its starting position (20 degrees forward).

  • 4

    Install the chain tensioner and water pump covers, tightening to .092 to 130 inch pounds (2.3 to 3.3 mm).

  • 5

    Take out the stopper pin from the timing chain tensioner.

  • 6

    Put a bead of liquid sealant onto the mating surfaces of the water pump and timing chain tensioner.

  • 7

    Install the timing chain tensioner with the water pump to the engine block, tightening the bolts to 87 to 113 inch pounds.

  • 8

    Add the drive belts, the idler pulley bracket and the engine mounting bracket with the engine mount.

  • 9

    Reinstall the negative battery cable and remove the jack from under the engine. Install drain plugs to the cylinder block.

  • 10

    Start the car and check for leaks when the engine reaches normal operating temperature.

Continue to monitor for the next few days for air bubbles in the system causing the fluid level to go down. NEVER TOUCH A HOT ENGINE, CHECK WHEN ENGINE IS COOL.
Good luck! --My Car Doc

Oct 24, 2011 | 1995 Nissan Maxima

1 Answer

There is a noise coming from the front engine where the ventilator is. It sounds like a diesel car, and the noise increase when the RPM increses.My Isuzu Ascender 2004 has only 60000 mi. I'm wondering if...


I recently purchased a 2004 Ascender with the 4.2l in-line six cylinder motor, and under the 60 day warranty, the fan clutch and water pump had to be replaced. The mechanic told me that the fan clutch wears out causing an out-of-balance condition which puts extra strain on the water pump, which was leaking. Another issue may be that the timing chain needs to be looked at, because the tension wheel/gear for the chain wears out, making the timing chain sloppy. Then the chain flops around inside the housing, making a similar noise to the one you describe. Have your mechanic/technician check it out.

Nov 16, 2010 | 2004 Isuzu Ascender

1 Answer

Pinging noise from the the engine


Pinging is a sign of low octane fuel in the tank or the engine may have jumped time if the vehicle has high mileage, I believe the Lincoln has a timing chain rather then a timing belt, the chain is much stronger and lasts at least double to triple the amount of mileage a belt lasts.
Have a shop run a timing strobe on the crank to see where your timing marks are in respect to the factory requirements, if the car is timed properly and there isn't anything wrong with the gas in the tank(try adding an octane booster to see if that helps allieviate the ping) then test the computer system for any possible codes, perhaps the 02 sensor is bad or the I.A.C.(Idle Air Control Motor) is defective causing the engine to run too lean and ping, a code stored in the computers memory will reveal this.

Jun 09, 2010 | 2002 Lincoln Continental

2 Answers

Coolant Leak at Engine Oil Pan


CHECK FOR LEAKING WATER PUMP WEEP HOLE OR GASKET.ALSO CHECK WATER PUMP HOSE FOR LEAKS.IF ALL LOOKS GOOD.YOU COULD HAVE PINHOLE LEAKS IN RADIATOR CORE LEAKING ON FRONT OF ENGINE OR INTAKE MANIFOLD GASKET LEAKING COOLANT.

Jun 08, 2010 | 2001 Jeep Grand Cherokee

1 Answer

1990 ford bronco EB that is running ruff when warmed


Hello, and thank you for choosing fixya.com.

Guttless when warm; backfires; runs fine for a few miles after sitting for 20 minutes...

First, take it to a mechanic or local auto parts store and have a diagnostics test done on it. This will bring up codes for anything is wrong. Next, as a step in the process of maintenance, replace the fuel, air, oil and tranny filter (fluids); have the engine and radiator purged completely and refilled (anti-freeze as needed) - If it's backfiring, the engine does this because the engine is trying to run in the opposite direction its suppose to, which in turn is caused by poor timing, which....in turn is caused by a possibly, loose timing chain, and stripped or stripping timing chain gear (top/bottom) - this could also damage the water pump, therefore causing the engine to overheat, and if not cared for soon, cause the engine to blow head gasket...so...the list goes on..

Do the diagnosic test: my opinion, it sounds like the timing chain needs replaced. In this case, replace the water pump, and make sure the lifter aren't bent, or damaged in any way and make sure the rocker arms are tight as well. Torque as needed if any are loose. NOTE: if you have any rod(s) that are bent, it is best to replace them all if possible. By doing the timing chain, the timing is then reset to TDC (top dead center) - I can give you instructions on how to do this yourself and save you a lot of labor costs. You may consider replacing the O2 sensor(s) as wel. Let me know if you need any more assitance or have any questions or comments. Please feel free to rate this information and I hope that it helps get tour truck back up and running smoothly.

Well, I hope that this informti

Apr 04, 2009 | 1990 Ford Bronco

1 Answer

1998 GMC sierra 5.7 warms up to violent shut down


I Would Look Into ECM Probled As It Takes over when the Engine reaches 195-220 Deg the ECM Takes Charge of Timing ETC.

Jan 31, 2009 | 1998 GMC Sierra

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