Engine knocking 4 cyn ? - 2006 Mazda Tribute

https://www.youtube.com/watch?v=0xI94ZDF54YL

https://www.ford-trucks.com/forums/388818-cant-find-knock-sensor-on-the-a-94-4-9-a.html


https://www.f150forum.com/f10/95-f150-4-9-knock-sensor-421603/
https://www.f150forum.com/f10/1995-ford-f-150-4-9l-knock-sensor-help-please-93877/
https://www.f150forum.com/f67/4-9-knock-sensor-97054/

check oil level if low add oil ---if oil milky in color like chocolate milk possible internal damage from --blown head gasket-damaged head --the knock from engine usually means that damage to a piston rod has occurred [rod knock] and knock usually doesnt throw an engine code and usually fatal to engine will need a mechanic to diagnose how bad or what extent the noise is with engine

caused by hot and lean.
which engine.??? at least 3 choices.
most have knock sensors. and will not knock.
if it really is knock then that is serious.
knock means detonation or ping.
if its just noise say that,
real PING happens under load.
1: check fuses.
2: check knock sensor for outside damage.
3: SCAN the PCM. do you have any DTC errors/
4: do a full 60k tune up. maybe its lean because the fuel filter is clogged.

the flashing ses lamp means theres a catlist damaging missfire with the eng DONT DRIVE get veh scaned to see what cyns are missfireing.

sounds like your cat. converter is pluged up

74 amphour

Please see my tip at http://www.fixya.com/cars/r6235876-no_heat_fan_blowing_cold_air . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Hi welcom to fixya. A defective knock sensor may cause engine detonation or reduced spark advance and fuel economy. When a knock sensor is removed and replaced, the sensor must be tightened to its specified torque. If the knock sensor is installed tighter than it should be, it may become too sensitive and provide an excessively high voltage signal, resulting in more spark ****** than required. When the knock sensor is installed looser than it should be, the knock sensor signal will be lower than normal, resulting in engine detonation.
To replace the knock sensor:

• Disconnect the knock sensor wiring connector.
• Then, unscrew the sensor.
• Remove the knock sensor.
• Reverse the procedures to install the part.
• 15 ft.lbs.torque
• hope this helps.Thank You for using fixya..iluv2fish.. Ray..

For the 2.2 L, working from top the engine (yep - I crawled around under looking), on the oil filler cap side, look down beside the power steering pump and you'll see a black plastic cap with a fairly large hex head (1 and 1/4") for removal.The filter is a paper element unit that comes up as an assembly when you remove the back cap. I removed the air filter duct and sensor wire for ease of access. But you use a bar extension (like 10 ") connect to an adjustable wrench to loosen gently and up it all came without the usual mess and disassembly of air filter duct and sensor wire. Just different. To close, the torque is 25 Nn.

Sounds like fuel filter.