Question about 1994 Chevrolet Cavalier

3 Answers

Sudden Speed Decrease Stalls Car

My 94 Chevy Cavalier normaly runs great, leaks no fluids but will occationally stall when I come off the Highway and decrease speed quickly. It will shutter real bad and stall. I can sometimes drop the automatic transmission into neutral and as long as I don't have to stop at a sign or light I can roll through, place the care back in drive and continue without stalling. Yet I have to rev the engine a few times in neutral. Is this some kind of speed sensor problem? It happens more often if the AC in on. When I'm just driving in town the seems to run fine. I've been trying to diagnose this problem for over a year now and I want to fix it before this stalling places me in the middle of a busy intersection (in Danger). Can anyone help? Anyone have this same problem?

Posted by on

3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 158 Answers

Lock up solenoid sticking VERY common with the 125C

Posted on Apr 02, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

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

  • Expert
  • 44 Answers

If this is trying to die when you come to a stop after the transmission had heated up then I would say that you have a bad solenoid in the transmission that controls the lock up converter. It will feel like it is still in gear when you come to a stop. This is most likely to happen when come off freeways but not always will it do it. This can happen at lower speeds to after engine and trans have gotten hot.

The other possibility is that the exhaust is clogged, the converter may be clogged or muffler may have come a part on the inside and a piece of the baffle is turn across the outlet of the muffler. Building backpressure on the engine causing it to load up. This would most like happen after high-speed drive like on the freeway.

There one other possibility that I can think of GM turns the injector off on deceleration and it senses RPM speed to turn them back on. The crank sensor could be having a problem or the control module and it could still be a computer problem. You would need to have a scanner hooked up to see what was happening for sure by watching injector and RPM readings.

Without being able to road test the car myself this would be my best ideas on the matter, Unless you can given me a code if it has one, when this happens

Posted on Oct 29, 2008

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 9 Answers

Sounds like a faulty TPS, or throttle position sensor. This is located on the throttle body itself. Sometimes they're just plain dirty, full of carbon, and need to be cleaned. Try cleaning it first, and while your at it, clean out the whoel throttle body, using a good name brand "carburetor cleaner". Carb cleaner not only cleans away carbon, but also leaves a dry film lubricant to keep things from sticking, which is especially helpful on throttle linkages and any moving parts within a carb or throttle body. Also a good idea is to go to radio shack, and buy electrical contact cleaner to clean off the MAF sensor, or Mass Air Flow sensor. A trip to the library should help you, find a haynes or chilton repair manual (unless you already have one)and it should show you where these components are located.

Posted on Oct 29, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2000 chevy cavalier stalling problems


time tu du some regular maintenance--the squeal probly a worn belt--affectin the alternator -hissing sounds like a vacuum leak--chec all hoses--also inspect ignition wires and distributer--buy a haynes repair book in a partsplace-detailed for the homemech

Jan 13, 2014 | 2000 Chevrolet Cavalier

1 Answer

Car runs perfect then starts missing real bad then stalls


Not unusual for fuel pumps to begin to fail once they are heated up from running. First thing in the morning pump is cool, then as you drive, it heats up and begins to lose pressure. After sitting a 1/2hr-1hr, it may start again and run fine for a short time and start to act up again. Had similar problem and found good fuel pressure when tank and pump cool, but lost pressure once vehicle driven a distance and pump heated up. The hotter the weather, the shorter the distance I could drive. If you can somehow set it up to have fuel pressure checked when it starts to act up, that would certainly help confirm if fuel pressure is the culprit.

Jan 10, 2013 | 1996 Dodge Stratus

1 Answer

1989 chevy cavalier z24 strats but stalls rapidly


This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control

Jul 26, 2012 | Cars & Trucks

2 Answers

Big vibrations and transmission fluid looks yellow camry 93/94


If the car improves at speed, but has rough idle, then I would suspect a crack or hole in the large flexible hose between the air cleaner and the intake manifold. Also possible are

- fouled or faulty spark plug
- broken or loose spark plug lead
- vacuum leak or detached vacuum tube
- worn timing belt has jumped a tooth

Jan 16, 2012 | 1994 Toyota Camry

1 Answer

02 chevy silverado crankshaft sensor location


my 94 chevy truck stalls even at highway speed ,it starts again but stalls after a few secs, finally it will run for awhile before it stalls again

Feb 13, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

94 chevy cav after driving short time car will


I would recommend replacing the in-line fuel filter

Nov 15, 2009 | 1994 Chevrolet Cavalier

1 Answer

94 chevy cav. after driving for a while, the car shuts off when u break. it will start back up but stalls as soon as you put it in a gear. let it sit for half hour and it will drive again for a while then...


94 chevy cav. after driving for a while, the car shuts off when u break. it will start back up but stalls as soon as you put it in a gear. let it sit for half hour and it will drive again for a while then starts the process all over again. any suggestions

Oct 26, 2009 | 1994 Chevrolet Cavalier

1 Answer

94 Lincoln TC engine stalls when slowing/stopping


Most common cause of stalling for Lincolns in that era is the TPS (Throttle Position Sensor). It regulates fuel mixture, idle speed etc. A bad TPS will usually act up in one of two ways:
  1. When cold, car continually stalls
  2. When warm, car stalls when slowing down (especially if AC is on)
As far as valve cover oil leak, it's a problem that should be addressed to keep oil from fouling your spark plugs but highly unlikely to be the cause of your stalling problem. Hope this answers your question. All the best.
Greg

Jun 16, 2009 | 1994 Lincoln Town Car

1 Answer

Car won't start. turns over but stalls.


sounds like a fault in the theft deterrent
is the theft light on or flashing
you will need to have the scanned for codes

May 31, 2009 | 1997 Chevrolet Cavalier

2 Answers

Vibration when in gear, and stalling.


The problem is the torque converter solenoid. I had it happen on my 94 Cavalier a few years back and was a cheap fix at the local car mechanic. What happens is the transmission warms up and hits a certain speed where the solenoid engages, but then it sticks and won't disengage until it cools down sufficiently. When it sticks, it causes the car to shake when slowing down and will snub out the engine if you come to a stop.

Mar 09, 2009 | 1994 Chevrolet Cavalier

Not finding what you are looking for?
1994 Chevrolet Cavalier Logo

377 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

60960 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...