Question about Chevrolet Cavalier

1 Answer

Roaring engine when started - Cavalier Chevrolet Cars & Trucks

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 771 Answers

Sounds like your car is over fueling. My first quick look is to make sure your throttle return spring is intact and still connected. Next remove the air ducting between air cleaner box and throttle body so that you can see that the throttle plate is fully closed at start up. If OK then reinstate the temporarily removed ducting. Next I would check your fuel pressure relief (FPR) valve on the fuel line. When the engine is running remove the vacuum line attached to it and check for fuel dribbling from it or a strong smell of fuel. If the FPR is normal and healthy the engine would normally increase in revs for few seconds and then begin to idle roughly. Put your finger over the end of the disconnected vacuum line (if healthy the engine would resume normal idle after aout 5 seconds) and watch the side arm of the FPR for about two minutes. If fuel eventually spits out then change the FPR. Sometimes the diaphragm within the FPR which is acted on by engine inlet vacuum can split and the fuel behind it is sucked into the inlet plenum making the engine rev and idle roughly.

Posted on Feb 23, 2012

Ad

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

98 Pontiac Grand Prix load front end roaring?


Defective fan clutch, if it has one. With a cold engine only, try spinning the fan blade by hand. If it does not turn freely, the fan clutch is defective. Warning: When the engine is hot, the fan can turn on by itself with the car not running and keys are NOT in the ignition.

Apr 23, 2014 | 1998 Pontiac Grand Prix GT

2 Answers

Chrysler town country noise


Your cars engine "roars" or the fan motor "roars"? If its the engine, does your car have tachometer and what are the rpms?

Oct 16, 2013 | Cars & Trucks

1 Answer

Engine roaring above 30mph


Is it possible you are hearing a wheel bearing instead of the engine or exhaust ?
Normally a bearing will roar on a turn and not on a straight stretch, but I guess its possible to do it the other way. A tire will make a roaring noise too.
I can't think of anything related to the engine that would roar only on a turn except maybe the power steering.

Feb 19, 2013 | 2006 Mazda 6 s

1 Answer

Roaring noise and now wont start , selenoid clicking like dead battery


You are going to need a shop to look at this, it is extremely hard to diagnose the kind of problem based on a "Roaring" noise complaint.
You may have an engine that has failed

Jul 03, 2012 | 2007 Toyota Camry

1 Answer

Engine roars when I start it


Hi, when you describe roars, is the engine RPM going way up? Please clarify. How many miles are on the Jeep?

Oct 11, 2011 | 1999 Jeep Grand Cherokee

1 Answer

My 2001 eclipse makes a strange roaring sound and wont turn over when i try to start?????


If I had to guess, I would say that the starter is not engaging the engine. When you turn the key to start, it energizes the starter and a solenoid that "pulls" the starter gear into the flywheel gear to turn the engine ovr. I suspect the roar is the starter motor turning and not engaging. You need to replace the solenoid, on some cars it is part of the starter and not available by itself.

Jan 25, 2011 | 1992 Mitsubishi Eclipse

1 Answer

In park with engine running everything sounds fine and smooth as can be. all fluid levels are good. when i put it in gear it sounds and feels fine. when i start rolling i hear a roar. it doesn't drive...


You might have the front wheel bearings checked out. First drive it on some curves and bear left and then bear right see which way quiets it down. That really only works if it is in the front, however the rear ones do go bad as well, however it is usually the front ones that go with a roar. Hope this helps

Oct 01, 2010 | 2001 Chevrolet Blazer

1 Answer

I have a roaring sound when i start the envoy what can it be? when I put it in neutral the noise goes away and too if i have been driving it for awile the noise goes away it only roars when I start it...


That's the fan clutch for the radiator fan. It has a thick fluid in it and in this cold weather it is ispecially thick. This makes the fan turn almost at engines speed and that makes the roaring noise. After it has been spinning a while, the fluid gets warm and gets thinner. that makes the fan turn slower than the engine. This is normal and needs no attention.

Feb 22, 2010 | 2003 GMC Envoy

1 Answer

I have a 4x4 explorer and it makes a roaring sound from front end is this normal for this model to do this


This model explorer is equipped with a mechanical clutch fan. When starting the engine and when accelerating from a stop, it can tend to roar as the engine reeves up. If that is what you are hearing then yes, it is normal.

Feb 22, 2009 | 2003 Ford Explorer

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

Related Topics:

137 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6918 Answers

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

Answer questions

Manuals & User Guides

Loading...