Question about 1994 Volvo 940

1 Answer

My car engine jerking occasionally

It happens more in the morning and sometimes in the middle of the road it jerks until the engine stop and i need to restart and accelerate for few seconds it will ok for few days.

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 138 Answers

Need more info but sounds like a vaccumme leak or faulty fuel pressure regulater

Posted on Jun 02, 2013

Ad

6 Suggested Answers

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.
Good luck!

Posted on Jan 02, 2017

Ad
  • 1 Answer

SOURCE: engine surging no warning lights

Same problem. It runs worse with the air conditioning running, still doesn't fix it though. Also, Volvo will tell you the transmission is "sealed" but if you take it to a transmission place they can clean it out.

Posted on Nov 07, 2009

  • 1 Answer

SOURCE: 240 Volvo - Acceleration Problems

One fuel pump may have died. Either the in-tank pump or the in-line pump which is below the left rear passenger floorboard. I would test power to in-line pump first. You can start engine and have a friend lay down by the in-line pump and listen for it to churn/buzz/hum.

Posted on May 16, 2012

  • 62 Answers

SOURCE: 2002 volvo weak acceleration

CLOGGED INJECTORS OR WEAK PUMP

Posted on May 23, 2012

nicole99wu
  • 1049 Answers

SOURCE: OBDII GIVING ME TURBOCHARGER

Have a diagnostic tool to have a review

Posted on Aug 02, 2012

emissionwiz
  • 78919 Answers

SOURCE: 2001 Volvo V70 jerking when accelerating up hill from stop

Hello
The engine and automatic transmission in this vehicles drive train are fully electronically controlled by a computer called the PCM and TCM (Power Train Control Module, Transmission Control Module). When a problem like this or other drive-ability related problems occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM

Posted on Aug 30, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Why ford explorer jerks off


bad fuel pump replace it

Aug 19, 2014 | 2008 Ford Explorer

1 Answer

Jerking problem and engine shuts off while being driven


hi there.
A car that jerks when starting it, when accelerating or whilst you're driving is showing symptoms that something is wrong, though there can be many causes: it can be problems in the starting system, fuel, engine or the exhaust pipe. You may even notice that your car engine light has come on to warn you of a problem. Getting to the problem at the first symptoms can avoid more serious break-downs. In one HOWTO we'd like to give you some advice so you know all the possible reasons and answer your question: why is my car jerking?
Contents
  1. Car jerking caused by a blocked catalyst
  2. Jerking caused by a fault in the spark plug
  3. Car jerking because of a drained acceleration cable
  4. Car jerking because of dirty injectors
  5. Car jerking because of the motor winding
  6. Accumulated waste can cause the car to jerk
  7. Car pulling.
  8. Car jerking caused by a blocked catalyst Car jerking can be caused by a blocked catalyst, which leads to gases not being ejected as they should be. The result is that, until the car doesn't rev, the car jerks. If your car has a blocked catalyst you will also notice the following symptoms apart from the jerking.

    Symptoms

    • The 'Check engine' light will turn on
    • Your car jerks when accelerating
    • The car's fuel efficiency will have dropped
    For more extended information, take a look at our article on the symptoms of a blocked catalyst. The best you can do if your car is jerking due to a blocked catalyst is to visit a trusted mechanic to fix it.
    Jerking caused by a fault in the spark plug Another cause for jerking can also be a fault in the spark plug or one of its cables. You will know this is the case if your car jerks when you start it in the morning. The symptoms are very similar to a blocked catalyst, but if it's a problem with a spark plug, you'll notice the following too:

    Symptoms

    • The engine will make even more noise than it usually does, like that of an airplane.
    • It jerks when accelerating but also when you start the car
    In this case, you can solve the problem yourself by changing the spark plug. If you don't have the skills to change the spark plug yourself make sure a professional solves this problem.
    It is very important to keep the spark plug clean, so you can avoid car jerking and other more problems.
    Car jerking because of a drained acceleration cable A car jerking can also be a result of the acceleration cable being very worn out. You will notice because of the following symptoms apart from the jerking:

    Symptoms

    • Your car takes extra time to respond when you press the accelerator and starts jerking.
    • If you take a look inside, you will also notice that the outer covering of the acceleration cable will be damaged.
    The best you can do is change it as soon as possible, as the car will stop at any moment if you leave it to break. Take the vehicle to a mechanic to solve the problem. If your car has this problem, take a look at our article to know all the reasons why your car jerks when accelerating to find out what it may be or try adjusting the acceleration cable if you are handy with cars.
  9. Car jerking because of dirty injectors Another cause for car jerks are dirty injectors. This is not such a serious problem but should know it needs solving too. You will notice your car is jerking for this reason if:

    Symptoms

    • Your car also loses power
    • Your engine misfires frequently and jerks and stutters frequently and/or continuously while driving normally.
    It's best to clean them regularly to avoid costly reparations. You can do this yourself using a specific cleaning kit, which are quite cheap and can be found almost everywhere.
    Car jerking because of the motor winding The car's engine/motor winding can be another reason for car jerking. Wear of the engine's winding is most likely caused by the engine being put under stress - i.e. through hard acceleration.

    Symptoms

    • If your car has more than one winding and one of them is broken, the car will jerk.
    • In the case there's only one winding, the car will not start.
    The only way of knowing if this is the case is through the use of an Ohm meter, so if you don't own one it's best you check with a mechanic to know if this is the reason your car is jerking.
  10. Accumulated waste can cause the car to jerk Jerking can also mean the fuel filter is blocked because too much waste has accumulated. To make sure this is the case you can learn how to tell if your fuel filter is bad. If this is your case,go to your mechanics to solve the problem or you can also try to clean your fuel filter at home.
    These are the most common causes of a car jerking, however, your car could have another problem that needs the help of a specialist. If you're not sure of what is happening to your car it's better to bring it to a mechanic. The specialist will find the root of the problem.
  11. If you'd like to read similar articles to Why is my Car Jerking - All Possible Reasons, we recommend you browse around our Car Maintenance and Repair category.

Dec 14, 2017 | 2005 Chrysler Pacifica

1 Answer

95 nissan pathfinder has bad mpg, dies, and jerks


Anytime the check engine light comes on, you check the computer for trouble codes. The codes will not tell you what to replace, but rather what to check.
Let me know what you find out.

Aug 24, 2012 | 1995 Nissan Pathfinder

1 Answer

Jerking and brake related issue


the jerking may be due to uneven braking on either side of the car it may be that a piston is stuck. need to take car off the road remove tyres then brakecalipers a good indication that a piston is stuck is when you disconnect the brake lines and pull pads/caliper of the rotor the piston will be extremely hard to move

Jul 18, 2012 | Cars & Trucks

1 Answer

Ford festiva 1991, it jerks a lot while driving. specially wen it drive after 4-6hr


most likely its your distributor cap. if its old it means its worn out and water will get into the cap and cross wires, which makes one of the spark plugs skip. replace your distributor cap and rotor.

Nov 18, 2011 | 1991 Ford Festiva

1 Answer

2001 Chrysler Town and Country has 149,000 miles. Had rear brakes put on and rotors turned, now going down road you might get a ****/hesitation and then when you put on brakes to stop it does a lot of...


Hard to say without a visual inspection. Have them rechecked by the shop that did the install. You may need new rotors. The rotors may have been cut beyond discard allowance,

May 28, 2010 | 2001 Chrysler Town & Country

1 Answer

Engine jerks going up a steep and temeperature is high.


change the coolant temp sender they give lots of problems and its a coomon fault on the vag range of cars

Jan 23, 2009 | 2003 Audi A4 Cabriolet

Not finding what you are looking for?
1994 Volvo 940 Logo

227 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volvo Experts

yadayada
yadayada

Level 3 Expert

78919 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides

Loading...