Question about 1999 Ford Crown Victoria

1 Answer

Knocking from motor

Bad knocking sound coming from motor just got oil change and knocking is louder now what should i do about this

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 96 Answers

Alot of the time, the carbon in the old oil makes up the gaps in worn pieces of your engine, and when you change the oil, it washes that carbon away. To get by, you can add some Lucas brand oil stabilizer, just drain a quart of oil and add the lucas. It is much heavier than the oil, so it helps take up the space left by the carbon, but it IS NOT A FIX. It will just help you get by until you can make the proper repairs. Any time you have a knock, you are usually doing damage to the motor every time you crank it, so use it as little as possible until you can have the motor rebuilt. Let me know if this helps :)

Posted on May 19, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

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

Loud knocking at back of motor


could be a cracked or broken flex plate

Apr 10, 2014 | 1997 Buick Park Avenue

1 Answer

Knocking noise and becomes louder every time I accelerate! What do I need to fix


SOUND'S LIKE YOU COULD HAVE A BAD ROD OR CRANK OR LIFTER.TRY THIS CHECK YOUR WATER AND OIL NOW START THE ENGINE IF IT IS A FAST KNOCKING HOLD YOUR FOOT ON THE BRAKE AND PUT THE CARE IN GEAR IF IT QUEITS YOU HAVE BAD ROD SERIOUS MOTOR REPAIR INTERNAL.DO THE SAME THING AGAIN AND IF IT IS MORE A THUMPING NOISE AND A SLOW DEEP KNOCK THEN WITH THE ENGINE IDLEING PUT IT IN GEAR HOLD THE BRAKE GIVE IT A LITTLE GAS AND IF THE MOTOR KNOCK'S GET'S QUEIT IT'S POSSIBLY THE CRANKSHAFT ANOTHER INTERNAL PROBLEM MOTOR OVERHAUL IF IT'S A FAST RATTLING IT'S PROBABLY A LIFTER STUCK OR BLEED DOWN DIRTY OIL OR A WEAK OIL PUMP ALL ARE BAD NEWS SORRY.GOOD LUCK

Jul 14, 2013 | Cars & Trucks

1 Answer

Got very bad nock in motor all fluids and gages are good. Engine light is on


Did changing the oil cause your light to go on? You didn't say if the noise started all at once or if it has gotten louder over time.

Typically a knock not related to predetonation ("pinging") will typically come from the connection at the crankshaft to the piston connecting rod. A slapping sound may occur if the connecting rod pin is sloppy or part of a piston skirt is damaged. I had a 98 Durango but can't remember if you have hydraulic lifters. A bad lifter can also emit a knock. If you have more of a clatter check the rocker arms. It's also possible a pushrod is bent. Use a mechanics stethescope or metal rod and try to isolate the noise source. The precise location of the knocking will improve you odds of solving the problem.

Jan 08, 2012 | 1998 Dodge Dakota

1 Answer

My 96 chrysler lhs has a knocking/rattleing sound coming from the bottom engine and as you push down on the gas the faster you drive the louder it rattles


if the noise is coming from the bottom end of the motor then you have either bad connecting rod bearings or bad crank bearings.if when you snap the throttle you hear a double knock then its connecting rod bearing if not then its crank bearing.a collapsed piston can sound low in the engine and its usually a dull knock noise.if you have the engine running and the noise is there and you pull off one plug wire at a time(and reconnect it after checking) and the noise goes away or mostly goes away with the wire unhooked then the cylinder that the noise changed is the cylinder that has a bad piston.

May 25, 2011 | Chrysler LHS Cars & Trucks

1 Answer

Tappin in the motor not vales or lifters


Tapping noises in a motor are sometimes hard to pinpoint. Does it sound like it's coming from the top of the motor or the bottom? Is it a light tap or a heavy knock? Is the motor oil at its normal level? Is there good oil pressure? Does the sound get louder with more RPM's? Is it possible the sound is coming from one of the accessories like the a/c compressor, power steering pump, alternator or other accessory. If you disconnect the spark plug wires one at a time, does the sound disappear? (be sure to disconnect only one plug wire at a time.)
Hope this helps.

Feb 11, 2011 | 2006 Pontiac Torrent

2 Answers

Have 95 Nissan pathfinder with knocking noise from right side of car. Was told it was the lifters. Also have exhaust leak on same side of car. Was wondering how big of a job would these 2 problems be at...


  1. noavatar.png
    • charleshucke
    • posted now
    I just purchased a 95 Pathfinder about a month ago from a gentleman that thought he had blown the motor due to the knocking sound that was coming from the right side of the motor. Turns out that it was either some really bad gas or some carbon build up. After purchasing I took it out on the interstate and gave it a good run, thinking it'll either blow or go and the knocking stopped all together! I talked to a Nissan mechanic and he advised me that the V6 does not have lifters as it is an overhead cam engine and that the knock sensor ( which BTW is on the right side) will not cause the knocking sound. What you need to be able to distinguish is the sound of the knock. I know that may not make much sense but it the knock is light and fluctuates with the engine RPM's and does not get worse or sound louder, then it is either the exhaust leak that you know of, or possibly some carbon build up or bad gas. If the sound is hard and gets louder with the engine RPM's then you may be looing at an internal engine malfunction such as a rod or main bearing issue. The V6 engine used in that model is one of the best and most durable engines that Nissan produced, so the likely hood of it being a bearing issue is slim to none if the vehicle has been maintained and regular oil changes were a part of that maintenance. I would recommend getting some Seafoam (which you can find at just about any autoparts store for under 10.00 bucks and putting half in the engine and the other half in the tank and just let it run *( If the knocking sound is not a hard knock) It will not hurt the engine and is compatible with all engine oils including synthetic. I would drive it as well. Now, back to the exhaust leak, if the leak is not that bad and the gasket has not deteriorated then it should get quieter as the engine warms up, but if the gasket is gone or deteriorated then the sound or knocking will pretty much remain the same. I have priced the replacement of the exhaust manifold(s) and it runs about 300.00 per side, the right side being the harder of the two. My Pathfinder has 232,000 and like I said, it worked for me. I hope that it will work for you as well and I hope that this information was useful to you.

Jan 12, 2011 | 1995 Nissan Pathfinder

3 Answers

I have a 1999 chevy malibu with knocking noise ina 3.1l v6 motor.


Sounds like you didn't put the pushrods back in the proper locations. There are two different lengths in this engine and you may have one backwards

Apr 09, 2010 | 1999 Chevrolet Malibu

1 Answer

1979 cad fleetwood brougham knocking sound from,engine


Sometimes collapsed lifters or loose rocker arms can cause knocking sounds in an engine. However, the fact that there was a possible loss of oil pressure and that the knocking gets louder as the rpm's increase, would indicate that there is damage to a connecting rod bearing and possibly the crankshaft. If the latter is the case you are looking at a fairly substantial repair bill.

Apr 14, 2009 | 1990 Cadillac Fleetwood

2 Answers

Weird noise when decelerating


have your exhaust pipe system checked

Nov 20, 2008 | 1999 Saturn SL

Not finding what you are looking for?
1999 Ford Crown Victoria Logo

Related Topics:

165 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

fordexpert

Level 3 Expert

5501 Answers

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

Answer questions

Manuals & User Guides

Loading...