Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Chevy
This answer was rated:

where is the knock sensor located on a 1989 chevy 4x4 350,

coud someone post a...
where is the knock sensor located on a 1989 chevy 4x4 350, coud someone post a pitcher of location
Show More
Show Less
Ask Your Own Chevy Question
Answered in 3 minutes by:
8/23/2010
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29,691
Experience: GM Grand Master Technician 2007. 14 years experience.
Verified
Chat Conversation Started
GM Tech (Cam) :

Greetings and Welcome to Just answer.

GM Tech (Cam) :

Full Size Image

Customer :

ok, there is nothing there on mine and no loose wier hanging down, the motor has been running fine from 5 years ago when i put it in, came from advanved auto parts. now it idels fine and runs fast its fine but slow speeds between 25 and 45 it chugs or missies kinda and if you hold that speed it will die, if you let off the gass or put your foot into it it runs fine again. is flashing a code for electrc spark control. sorry so long

Customer :

did all 350 in 89 come with a knock sensor

GM Tech (Cam) :

I am sure they did. With electronic spark control, it needs to know if the timing is out.

GM Tech (Cam) :

and if there is a spark knock.

Customer :

well i have been driving this truck for the past 5 or 6 years and it just started this problem in the past yeay or so, i have put a new throtol body withh all new sensors map,electric spark control,new computer,new distributer,cap rotor, and wiers. now im stumpd and all the shops around here cant answer my question, even had one tell me to come and pick up my truck there was nothing they could do for me

GM Tech (Cam) :

THe spark module is that the one in the distributor?

Customer :

there is an ignition control module in the distributer, and elitric spark controle on top of the motor on pasenger side, replaced ESC abot a week ago and ICM about a year ago.

GM Tech (Cam) :

Ok, is the reluctor wheel loose on the shaft of the distributor?

Customer :

ok whats the reluctor wheel and i will go check

GM Tech (Cam) :

It is the star wheel under the rotor.

Customer :

ok brb

Customer :

no, not loose

GM Tech (Cam) :

Is the EGR valve opening up or leaking?

Customer :

i think so, replaced it, gasget and new vacume hoseabout a month ago

Customer :

new coil,plugs coolant tempature sensor oxgyn sensor

Customer :

do you know what color the wier should be going to the knock sensor

GM Tech (Cam) :

Hold on, I will look.

GM Tech (Cam) :

dark blue from the spark module.

Customer :

ok,traced dark blue wier from elictrc spark control down to nothing, could this be what goes in the knock sensor, and if so can you but a new conector for it

Customer :

oops buy

GM Tech (Cam) :

HAs the wire been cut?

GM Tech (Cam) :

Do you see the sensor? Often they double as a block drain.

Customer :

no, but i got a new one, and that is what led me here, i see a plug in the spot about where your pitcher shows the sensor and that is what got me looking, could this give a elitrc spark control code

GM Tech (Cam) :

It may, these old ones are basic and don't have the diagnostic power.

Customer :

ok,can you buy a new conector for this or do i need to look in a junck yard

Customer :

if i have anymore questions, is there a way i can get you back, or do i just get whoever answers.

GM Tech (Cam) :

You can reply at any time for follow up information regarding this issue, even after you accept my answer and I will reply.

GM Tech (Cam) :

I would go for the junk yard myself.

Customer :

ok, yhank you

GM Tech (Cam) :

Use that link to get back tome.

GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29,691
Experience: GM Grand Master Technician 2007. 14 years experience.
Verified
GM Tech (Cam) and 87 other Chevy Specialists are ready to help you
Ask your own question now
Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29,691
29,691 Satisfied Customers
Experience: GM Grand Master Technician 2007. 14 years experience.

GM Tech (Cam) is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money.

Todd LRochester NY

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

Chevy Technician

29,691 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,357 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,866 satisfied customers

Have owned a repair shop for 25 yrs.

Dave Nova

Dave Nova

Chevrolet Technician

7,092 satisfied customers

ASE Master Certification. GM World Class Certification

John

John

Master A.S.E Automotive technician

4,071 satisfied customers

A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician

Don - Mo Lurch

Don - Mo Lurch

Auto Mech / Electronics

2,918 satisfied customers

Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

Ron Z.

Ron Z.

- Chevy Tech -

2,734 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

< Previous | Next >

Related Chevy Questions
3 days ago replaced knock sensors and harness and o2 sensors
3 days ago replaced knock sensors and harness and o2 sensors knock sensor codes still there. now at about 2500 rpm cel flashes and po 300 is stored long term fuel trim goes to +55 percent on bank 2 an… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,442 satisfied customers
The old code 43 will not clear, replaced the knock sensor
the old code 43 will not clear, replaced the knock sensor reset the computer 1993 5.7. … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
OBD code P0330 Knock Sensor Bank 2. I've been googleing for
OBD code P0330 Knock Sensor Bank 2. I've been googleing for over a half hour trying to find the location. Can you help. 2012 Traverse 3.6L. … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,238 satisfied customers
I installed new knock sensors buy the code is there.
i installed new knock sensors buy the code is there … read more
Todd Audette
Todd Audette
Automotive Technician
Vocational High School
143 satisfied customers
We paid over $1,000 to replace (3) knock sensors on our 2014
We paid over $1,000 to replace (3) knock sensors on our 2014 2500HD Duramax Diesel truck and still have the same problem with the Stabilitrak and DEF error messages. We have currently 91 miles left to… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Chevy 2001 Silverado 4.3 L. I replaced the knock sensor and
Chevy 2001 Silverado 4.3 L. I replaced the knock sensor and the "secondary air" and "evap" codes went away. Now getting "heater 02" and "catalytic converter" codes after driving 100 miles. Is there an… read more
roy
roy
Associate Degree
3 satisfied customers
I have a 2002 Chevy Silverado 4.3 L, getting a 0327 knock
I have a 2002 Chevy Silverado 4.3 L , getting a 0327 knock sensor code. I assume this means pulling the intake manifold, replacing both sensors and both wiring harnesses, and maybe for good measure re… read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
Locked out, having problems with the knock sensors had to
having problems with the knock sensors had to erase codes to get home , now im locked out of the computer … read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
293 satisfied customers
I have a 2008 Chevy Cheyenne 5.3 L with a knock sensor code
I have a 2008 Chevy Cheyenne 5.3 L with a knock sensor code the intake is removed and the conventional picture does not match what I have truck is made in Mexico California emission standards… read more
Don - Mo Lurch
Don - Mo Lurch
Auto Mech / Electronics
Vocational, Technical or Trade Scho
2,918 satisfied customers
Knock sensor on bank 2, catalytic converter on bank 2 codes
knock sensor on bank 2, catalytic converter on bank 2 codes on 4.3 liter 2011express van … read more
Ron Z.
Ron Z.
- Chevy Tech -
Vocational, Technical or Trade Scho
2,734 satisfied customers
2002 tahoe 5.3, no 5V dc at the knock sensor plug in [pin 11
2002 tahoe 5.3, no 5V dc at the knock sensor plug in [pin 11 and 51] wires OK to PCM, with key on...where does the 5V originate from? any out side source or fused, switched before entering PCM? … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,238 satisfied customers
The engine knock sensor in front of engine. is there suppose
the engine knock sensor in front of engine. is there suppose to be a wire to connect it? I replaced the sensor and the engine light is still on. its a 2005 impala … read more
Gunvir Singh
Gunvir Singh
1,817 satisfied customers
Will a bad knock sensor cause the cam sensor to act up on a
Will a bad knock sensor cause the cam sensor to act up on a '97 chevy 5.7 … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,420 satisfied customers
Question 6 days ago about knock sensors, mechanic has
mechanic has changed knock sensors 2x also wires check motor light still coming on he said meter is showing low voltage on knock sensors … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
2003 Chevy Silverado 5.3 showing knock sensor #2 short or
2003 Chevy Silverado 5.3 showing knock sensor #2 short or open, I have replaced both knock sensors and wire harness. Light was off about 3 days now back on same code?… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,442 satisfied customers
2000 chevy 1500 5.3l. Knock sensor code replaced 2 days
2000 chevy 1500 5.3l. Knock sensor code replaced 2 days later knock sensor code again, 2 weeks later engine lost oil pressure, replaced engine with one out of running 2000 GMC 1500 with 73,000 miles w… read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
I just replaced knock sensors and the harness and now when I
I just replaced knock sensors and the harness and now when I sit at idle my voltage drops down to around 12v but then picks back up to 14v within seconds most of the time. Also the check engine light … read more
Gary
Gary
Senior Technician
Vocational, Technical or Trade School
59 satisfied customers
Knock sensor is going out, need to replace them how much
knock sensor is going out, need to replace them how much would a dealer charge to do it … read more
Gary
Gary
Chevy Technician
Vocational, Technical or Trade Scho
9,357 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x