Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Chevy

Y I've got a 01 chevy Silverado extended cab z71ive had it 8

Customer Question
y I've got a 01...
y I've got a 01 chevy Silverado extended cab z71ive had it for about 8 months as soon as I bought it realized it burned way too much fuel took to shop an was told knock sensor an o2 sensors need replacement as well as previous owner bored out both cats an put back on idk if that could add to the lose of power an fuel incre uased use. But now she's been parked one morning going to work I started her up like I do every morning sat fir a moment then put truck into reverse an nothing then i went threw all gears an nothing happend. Sat fir a second tried it again and when I put in revers this time I mashed gas an it jerked me hard as crap an same in drive maybe heard a lil humming noise and vibration when I got on the road it seems to have quit well I got off the interstate an I heard a loud chain noise it sounded just like a big metal chain dragging on the pavement an then she would vary go at all when I mashed gas basically Fred Flintstones it to parking spot an then she wouldn't even lock into park or any gear for that matter any more well I had it towed an when I went out to test it again it was locking in yo all gears like normal an seemed fine just for a second one the road then I heard outta. No were that same chain noise an I want to say it only d does it during shift changing an if I raise rpms it will quit in out but soon as it wants to shift or I'm starting to go from stop the noise starts again I barely made it home if I drove her about 32 miles an hour it didn't make any noise till like I say it time for gear change
Submitted: 1 year ago.Category: Chevy
Show More
Show Less
Ask Your Own Chevy Question
Answered in 8 hours by:
7/25/2016
Chevy Mechanic: sprinkles08, ASE Certified Technician replied 1 year ago
sprinkles08
sprinkles08, ASE Certified Technician
Category: Chevy
Satisfied Customers: 23,263
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
Verified

Hello and welcome to JustAnswer!

It sounds as if you may have a rear differential problem but it could be a mechanical failure in the transmission. If the truck was still able to move when in park then the failure had to be somewhere after the park sprag, which really leaves only transfer case,driveshaft splines, and the rear differential.

Are you able to tell what area the noise is coming from?

Ask Your Own Chevy Question
Customer reply replied 1 year ago
No after first time coming off interstate from 85 mph top 0 then trying to accelerate was the loudest time it's made the noise an I had to keep mashing gash to floor an releasing it an basically looked like the truck had front hydraulics it jerked so hard trying to keep it moveing to get it into parking spot an tgats the only time I could get it to lock into park an my tow truck driver said he had to manually unlocked something an get it back into gear an when he brought it home it reacted normal to all gears I out it in in the yard an didn't make noise again till after about 2 miles down road about 50 miles an hour an then I'm pretty sure it did it every time it needed to shift an I could get it to stop if I kept her going no faster then 35 mph an when I finally got to drive wat an started to turn it started the noise again an all they way down drive way till I put it back in park an it reacted normally again an locked into park. I'm very lost in wat to do an were to go fir help with problem dont want to spend about a thousand dollars on the compleat opposite thing that has nothing to do with my problem you know
Chevy Mechanic: sprinkles08, ASE Certified Technician replied 1 year ago

Is it four wheel drive?

Ask Your Own Chevy Question
Customer reply replied 1 year ago
Yea push button on dash board
Chevy Mechanic: sprinkles08, ASE Certified Technician replied 1 year ago
Does putting it in four wheel drive change anything?
Ask Your Own Chevy Question
Customer reply replied 1 year ago
Haven't tried in sacred it will make that loud grinding noises an get stuck I've usedy four wheel drive about a month ago an it reacted normal
Customer reply replied 1 year ago
To describe the noise better it almost sounds like when you're trying to shift gears in a manual transmission truck and you're not pushing in the clutch that grinding noise that that makes is almost the same sound my trucks making around gear change time and like I said after that it quiets down but from take off it's bad and every time it's time to switch gears it's bad
Customer reply replied 1 year ago
I think there is some kind of shift module in the transfer case I'm not sure but looking online they are chain driven
Chevy Mechanic: sprinkles08, ASE Certified Technician replied 1 year ago

Seeing if anything changes in four wheel drive will give a better idea of whether the problem is in the transfer case or rear differential. If it still moves in four wheel drive and will lock in park then you most likely have an issue in the rear differential and would rule out a transmission problem.

Ask Your Own Chevy Question
Customer reply replied 1 year ago
if it still lock in 4 hi or 4 low witch one would be better to try 4 low so I can feel lit pulling harder an if it does it's rear end
Customer reply replied 1 year ago
Any if it's case or tranny it will lock up an not be able to move or get in 2w again
Chevy Mechanic: sprinkles08, ASE Certified Technician replied 1 year ago

Try driving it in four high and see what happens.

Ask Your Own Chevy Question
Customer reply replied 1 year ago
Will do I'm in Sc an it's 1220 here now and I'm at work fir about 2.5 hours an I'll let you know when I get home what ever it is I hope it's the cheapest one to have fixed an maybe something me an my brother could try to attempt
Chevy Mechanic: sprinkles08, ASE Certified Technician replied 1 year ago

Sounds great. Let me know how it goes!

Ask Your Own Chevy Question
Customer reply replied 1 year ago
sir glad to have your help is there anny way I could give you my email or number to talk to u right away when I get to my house***@******.*** or 1-***-***-**** if that's even possible it would be awesome to figure out were I need to go an get this handled today
Chevy Mechanic: sprinkles08, ASE Certified Technician replied 1 year ago

I'm unable to give personal contact information but you can always reply here and I will receive notification.

Ask Your Own Chevy Question
Customer reply replied 1 year ago
Well I just got home to try it in four wheel I guessing it's not rear end but now I need to know if it's transfer case or tranny? I cranked my truck up an went to put it in reverse an it started whining and grinding won't move at all now
Customer reply replied 1 year ago
I can definitely tell them noise is right were transfer case an trannys is at
Chevy Mechanic: sprinkles08, ASE Certified Technician replied 1 year ago

With the trans in park and engine off are you able to push the truck?

Ask Your Own Chevy Question
Ask sprinkles08 Your Own Question
sprinkles08
sprinkles08
sprinkles08, ASE Certified Technician
Category: Chevy
Satisfied Customers: 23,263
23,263 Satisfied Customers
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience

sprinkles08 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

15,249 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,196 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,847 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

2,900 satisfied customers

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

Ron Z.

Ron Z.

- Chevy Tech -

2,682 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

< Previous | Next >

Related Chevy Questions
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
Engine makes a noise like a spark knock or an exhaust leak
Engine makes a noise like a spark knock or an exhaust leak from the right side of the engine during acceleration, this doenst happen all the time but it seems to run better when it doesnt make the noi… read more
Dodge expert
Dodge expert
ASE MASTER TECH, REPAIR FACILITY OWNER
High School or GED
3,636 satisfied customers
Check engine light is on... It spudders at an idel. And
Check engine light is on... It spudders at an idel. And sometimes doesnt start .. … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
The engine and traction control lights are on, and there is
The engine and traction control lights are on, and there is a "service traction" message on my 2011 Malibu. … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
86 K10 temp. gauge goes to hot and engine dies, but engine
86 K10 temp. gauge goes to hot and engine dies, but engine is still cool … read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
1996 chevy Silverado k2500 5.7 vortec engine engine light on
1996 chevy Silverado k2500 5.7 vortec engine engine light on po300 random misfire detected we replaced plugs wires Distributor cap and rotor pickup coil checked compression everything is good there ch… read more
Michael Solis
Michael Solis
261 satisfied customers
Wash engine but do not start engine. Its ok. Everything is
wash engine but do not start engine JA: Have you checked the battery, particularly the terminal connections? Are they corroded? Customer: Yes its ok JA: What is the model/year of your Chevy? Customer:… read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 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
290 satisfied customers
I got a crate engine 10066038 in back of the engine i says
i got a crate engine 10066038 in back of the engine i says im0918 6vp can you tell me more about this engine? … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 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
2,900 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
2,682 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
1,913 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
1,712 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
3,943 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
4,012 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
45 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