Can bad fuel injectors cause a knocking noise in your engine?

Acarlton2012
0

Asked by Acarlton2012 Dec 17, 2012 at 09:34 PM about the 1997 Chevrolet C/K 1500 Ext. Cab 6.5-ft. Bed 2WD

Question type: Maintenance & Repair

Getting a knocking noise from my engine and the diagnostic results from my mechanic is stating bad fuel injectors
causing a misfire in cylinders 4,5,8 is that possible a knocking noise could be caused by that

1 Answer

John Saffrahn
21,585

No.... A knock is generally caused by the ignition timing. An injector stuck shut causes a lean misfire which causes the engine to hesitate and loose power but not knock. An injector stuck open causes a rich mixture which will either reduce the chances of a knock or once again cause a misfire. I believe your vehicle is equipped with a knock sensor which is used to prevent knocking or pinging by electronically adjusting the timing. It sounds like the most likely issue is either the knock sensor is faulty or the ignition module inside the distributor is messed up.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Tbi injector overflowing with fuel 7 answers

    Injector overflowing with fuel, recently cleaned tbi system and partially rebuilt with new o-rings and gaskets. What could be the problem?

    1990 Chevrolet C/K 1500

    -

    Maintenance & Repair

  • why would 1992 chevy pickup knock when started 9 answers

    truck has 57 thousand miles,when first start,especially when cold,it knocks...knocking sound that goes away after starting up few seconds.

    1992 Chevrolet C/K 1500

    -

    Maintenance & Repair

  • will the fuel pres reg keep fuel from inj 4 answers

    back fired changed intake inj look good no lines look bad ran fine could it be the fuel pres reg it has the spider inj

    1997 Chevrolet C/K 1500 Ext. Cab 6.5-ft. Bed 4WD

    -

    Maintenance & Repair

  • No low end power 26 answers

    I have a '97 k1500 with a 350 and 4l60e automatic. Assuming all things are OK with the truck, would a bad fuel pressure regulator cause it to have no power at low rpm's? It always bogs under acceler...

    1997 Chevrolet C/K 1500

    -

    Maintenance & Repair

  • Knock sensor 1 answer

    I have a 1993 Silverado 2wd, with the 5.7 TBI, with auto trans. My question is, I want to install a 'gear drive' timing set. Problem is, all of the gear drives I've looked at say "Not to be installe...

    1993 Chevrolet C/K 1500 Reg. Cab 6.5-ft. Bed 2WD

    -

    Car Customization

Search Chevrolet C/K 1500 Questions

Chevrolet C/K 1500 Experts

#1 John Saffrahn
John Saffrahn
Reputation 1,590
#2 Andrew Olsen
Andrew Olsen
Reputation 1,210
#3 Jamie Groeneweg
Jamie Groeneweg
Reputation 530
View All

Related Models For Sale

Used GMC Sierra 1500"
666 Great Deals out of 58,192 listings starting at $1,995
Used Ford F-150"
2,076 Great Deals out of 109,817 listings starting at $1,350
Used Dodge Ram Pickup 1500"
560 Great Deals out of 10,890 listings starting at $1,984
Used Chevrolet C/K 2500"
255 listings starting at $3,995
Used Chevrolet Tahoe"
493 Great Deals out of 25,308 listings starting at $1,955
Used Chevrolet S-10"
49 Great Deals out of 1,568 listings starting at $1,589
Used Toyota Tacoma"
557 Great Deals out of 25,017 listings starting at $2,598
Used Chevrolet Camaro"
480 Great Deals out of 33,889 listings starting at $1,400