Question about 1990 Jaguar XJ6

2 Answers

Jaguar xj6 1982 model/mechanics

Gday. My xj6 1982 model Jaguar has a terrible knocking sound coming from underneath as I approach 60 kmh or am going up hill,and tends to continue to shudder mildly at 60kmh,above and below that speed it eases off.Can you please advise? thankyou

Posted by on

  • Roberta Smith
    Roberta Smith May 11, 2010

    first thing... when was the last time you checked the oil.... and that sounds like it could be engine knock from using a lower octane gas then it should be using.

×

Ad

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Throw liqui moly reducer in it

Posted on Nov 14, 2018

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 426 Answers

It could be as bunnydawg suggested but thiers quite a few other things that could cause that sound.You need to be a little more specific as any of the rotating parts,drive shaft etc,could be the cause of the noise.If not the engine making that noise which is odd as it only gets noisy at specific times,60 and up Check drive shaft uni joints,tyres and harmonic balancer also make sure none of the front pulleys arnt loose.Good luck

Posted on Dec 18, 2008

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

It has a 351 Windsor motor in it. I has a terrible knocking sound. We replaced the main bearing and timing chain. What could it be?


How were the rod bearings? I always check them whenever replacing the main bearings. Why did you only say "main bearing"? There are always more than one.

could also be part of the fuel pump dropping do into the oil pan is now hitting the crank, but you checked the oil pan for "bits and pieces" when you took it off to change the main bearing - right?

Mar 31, 2015 | 1970 Ford Mustang

1 Answer

08 chrysler will only go 60 kmh will not shift


Don't play the guessing game and start replacing parts on the fly. Go to an Autozone, or Napa store and they will scan for codes for free. They may even tell you what the most common part is that they sell when that code is present on a vehicle, if the code doesn't pinpoint it dead on. If your still not sure after that, get back to us with code and we will guide you through it. Much easier and cheaper that way.

Apr 20, 2013 | Chrysler 300 Cars & Trucks

1 Answer

A knocking and grinding noise coming from underneath the car,


if you had the CV JOINTSreplaced , they both should have lasted for a long time, how much do you trust your mechanic ? always something to consider ! also, the mechanic who replaced the CV'S last time, did he do a good job ? was there a grinding noise then ? did you get a warranty on the previous cv's, I'm not tryin to point any fingers, just sayin, you need to be aware of every move you make, and who you make it with. NOW, go to good transmission shop, have them test drive ,with you in car, and inspect your front end and transmission, its free , good luck

Feb 17, 2013 | 1999 Chevrolet Malibu

1 Answer

I replaced the knock sensor, what else could be causing acceleration problems on hills?


The knock sensor code does not always mean the sensor is faulty.
The sensor picks up noise and vibration in the engine such as a spark knock would generate, and the computer slows down the spark timing to fix it. If the noise or vibration continues, the code is set.
Could be a noisy valve, or a problem with the crankshaft or other component.

Aug 13, 2012 | Cars & Trucks

1 Answer

Jaguar xj8 2004 (x350) when driving at slow speed (50 -80 Kmh) the gearbox undecided which gears to use. Rev counter goes slightly faster and slower. Problem goes away when driving faster. Also lumpy...


sounds like the torque converter is going out...I remember on some of the xj8 and xjr models in the x350 class had these issues...the signs were a surge in the rpm cluster at about 50mph and when you attempt to pass or kick down it will ****....but as you get higher in speed it eventually smooths out...This is my insight for your issues...If it was the transmission control module it would throw a definite code.....Usually this issue with the converter was with the earlier vin models ranging in g00 to g400 numbers....and a few others

Sep 04, 2011 | 2004 Jaguar S Type

1 Answer

My transmission fault message is coming on and it does not want to accelerate fast. do you have any answers? My Jaguar is a xj8 1997 model


A small leak over period time will cause fault light (amber) to come on. There is no dipstick. Can only be refilled by dealer or certified Jag Mechanic. Cost of fluid at dealer $60. Quart. Check online; $15 quart

Jun 21, 2010 | 1998 Jaguar XJ8L

1 Answer

Hi. my 1994 subaru legacy wont '' climb reasonably long hills.'' once revs die a little it should change down a gear( auto) bu t this thing just dies down to about 60 kmh.


If it won't downshift when you press the pedal to the floor then you have faulty electronics in the transaxle control system.

Dec 21, 2009 | 1994 Subaru Legacy Outdoor

Not finding what you are looking for?
1990 Jaguar XJ6 Logo

171 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jaguar Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Marvin
Marvin

Level 3 Expert

84540 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Are you a Jaguar Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...