Question about 1987 Toyota Supra

1 Answer

Knocking in the engine,loud when on the gas and dissapears and reappears after its warm

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.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 50 Answers

If the engine is knocking it's probably the big end bearings on the crankshaft.the engine will req a overhaul

Posted on Oct 04, 2010

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:

2 Answers

What happens when you drive without a gas cap


ok on todays automobiles the gas cap does more than just seal the gas tank. Now they run a return line to the tank. this does 2 things. it returns un used fuel and vapors back to the tank , and it pressurizes the tank to help improve the fuel pump.

Now as it is possible running without the gas cap may cause problems I am not 100 % positive that is your only problem.

It sound like the knock sensor is detecting the knock you mentioned and is trying to retard the timing to fix it . In doing so it has retarded it to far causing the engine to loose power and eventually stall. I would first replace the gas cap. then run a good gas additive to a full tank of gas to clean out any water and dirt that may have gotten into the tank while the cap was off. now the issue of the knock as you described. is it a knock or a ping? A knocking sound is loud metallic hammering noise. a ping is a ting not very loud. if it is a loud metallic sound I would have a reputable mechanic check it soon, as it could be a serious issue. Ping can be caused by bad or weak gas or cheap low octane gas. I would run a mid grade gas in it and see if it fixed the issue.

Jun 02, 2014 | 2004 Dodge Neon

1 Answer

Loud knocking in engine


The lifter rod is out or you cracked your piston mine did the very same

Feb 14, 2014 | Cars & Trucks

1 Answer

Why does my front cylender have a loud "knock"?


what kind of car or truck is it and does the knock get better when engine is warm or worse. also is it a diesel or gas engine.

Jul 23, 2013 | Cars & Trucks

1 Answer

I have a 1999 mercury villager and when i press the gas pedal it starts knocking real loud


That maybe a spark knock try filling your fuel tank with 92 octane gas and see if the knock quits.

Oct 17, 2012 | Mercury Villager Cars & Trucks

1 Answer

Not getting oil to the pistons. Making knocking noise. Wont stay on.


Hello
Has the engine been run low on oil? Does the knocking get louder as the engine warms up? Have you had a automotive technician listen to this noise? Pistons don't really knock, the bearings in the engine called the crankshaft and piston connecting rod bearings do make a loud knocking noise, if that is the case the engine must be removed from the car and rebuilt.

Sep 23, 2011 | 1998 Honda Civic

1 Answer

I have a 94 GMC safari with 295K on it. I let an oil change go a year and thought because it was around town it wouldn't burn much, well I had about a litre of oil left, changed filter and oil and changed...


The loud knock you here is a bering knock.(not good)By letting oil change go so long i would assume you have caused internal damage.And you say your oil pressure is 275 psi should be around 25 to 50 psi .Bering can't last long without oil.

Feb 10, 2011 | 1994 GMC Safari

2 Answers

96 Suburban v8/7.4L/454 K2500, Knocking Noise??


sound like an internal engine problem. either one or more of the pistons has "piston slap" and that knocking will diminish as the engine warms up or possibly a rod bearing is worn out. have a tech do a manual oil pressure test to make sure the oil pump and main bearings are ok. piston slap or knock that decreases when the engine warms up is not that serious, but a rod bearing knock or possible oil pump failure should be taken care of asap.

Oct 29, 2009 | 1996 GMC Suburban

3 Answers

Loud knocking in my engine?????


It sound like you dropped valve seat on the head. Did you recently over heat your engine .

May 12, 2009 | 1998 Plymouth Breeze

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

231 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

75817 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8180 Answers

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

Answer questions

Manuals & User Guides

Loading...