Question about 2001 Volvo S40

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2000 Volvo S40

I hope you can help me. My car doesnt seem to know what gear it should be in at slow acceleration and in town speeds. When you depress the gas pedal for smooth reasonable city driving from a stop, the car goes along shifts normally until about 2300 rpm then downshifts the rpm goes up to the 3000 range then shifts to next gear then rpm hits 23-2400 rpm then it continues this cycle of shift up and down although the speed of travel or the accellerator pedal position isnt changing. trying to hold 35-40 mph is dreadful as this surging or actual cycling of shifting continues until you either drive harder or reach 60 mph or faster. What do you think. Also the idle seems a little low in gear at 5 or 600 rpm and vibrates the steering wheel.

Posted by dbrzz on


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Bill Boyd

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One unit that operates ratio changes and is connected to the engine is that vacuum operated actuator on the transmission
it is possible that that unit is failing , vacuum hose is leaking and that will cause ratio changes as the vacuum varies
run the fault codes to check for wiring problems or VSS or TCM problems as well

Posted on Mar 23, 2017


5 Related Answers


  • 1 Answer

SOURCE: Tire Vibration

I have the same issue - but notice its worse when you accelerate hard in 5th. I have changed all the ball joints, bearings and track rod ends but its still there. From trawling the various forums I'm starting to think I need to change the suspension arms and top strut bushes. 100K

Posted on Aug 18, 2008



  • 2 Answers

SOURCE: 1989 volvo not shifting into gear

The only fluid expansion tank I know of is for the cooling system,and if that is the case you my have a leak in the transmission cooler that is built into the radiator.

Posted on Jan 03, 2009


  • 858 Answers

SOURCE: transmission slips when hot

its either low on fluid or the clutches & bands are worn or need adjusting!
get itserviced QUICK SMART! & check for leaks!

Posted on Jul 20, 2009


  • 78 Answers

SOURCE: 93 volvo labored idle...unreliable response with gas pedal.

you have to change the spark plugs

Posted on Oct 23, 2009


Arthur Aldrich

  • 170 Answers

SOURCE: The overdrive quit working in my 2000 volvo s40.

Several suggestions, some cheap, others not. The overdrive relay is the first suspect. It's located on the relay rack behind the fuse panel (usually). Cheap fix. About $10 on Ebay. Just be sure the part numbers match. I always carry a spare. The speed sensor might be another source of problems. It measures RPMs and feeds the info to the computer. Not an easy do-it-yourself fix. Also, the transmission control module. An easy swap with a spare from Ebay. It hides under the dashboard, passenger side. A solenoid on the transmission locks the OD in and out. Not an easy do-it-yourself fix. Volvos are notorious for flaky issues like this, so I would try all the simple fixes before bringing it to your mechanic.

Posted on Apr 23, 2010

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2 Answers

What is the firing order for a volvo s40 1.9 2000

2000 Volvo S40 1.9 liter Turbo L4


Hope helps.

Oct 06, 2011 | 2000 Volvo S40

1 Answer

The car seems to be slowing down extreamly fast when im out of gear, its as though i have my handbreak on, and no there isnt a sign on the dashboard so i doubt its somthing to do with the handbreak. i dont...

As long as the gear shift calbe is routed correctly and adjusted correctly you can be sure you have a input spline problem the first sign is hard to engage first gear and hard to engage in reverse the S 40 have known problems for this your dealer should know TSB 43-47

Sep 08, 2011 | 2000 Volvo S40

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2000 s40 has erratic idle. Feels like it's surging

This seems similar to a Volvo C70 which i have worked on......the fault was the Mass Air Flow Meter was faulty........does it do this in all the gears?

Mar 13, 2010 | 2000 Volvo S40

1 Answer

Orange flashing arrow light was on,on my 2000 s40volvo and then it shut of by itself

have the same problem with our 2001 s40 and stumbled onto a site like this with a couple answers.
1 your transmission could be going, however that is the extreme.
2 ours accelerates very slow when the light is flashing which means the winter traction is engaged even though we have not pushed button. to reset this you can turn your car off (key all the way back) and on 5 times consecutively and it resets itself most of the time.
3 sorry to type this, but just make sure you did not push the "w" button on the shifter area platform
hope this helps

Feb 25, 2010 | 2000 Volvo S40

1 Answer


I don't know the solution. My car a 2000 s40 just started having the same problem. It is now in the shop because the other night when I started the car the motor raced and would not slow down. After two try's of this, after the third time the car wouldn't start at all. After it sat overnight the car did start back up. Please post if you find a solution.

Jan 27, 2010 | 2000 Volvo S40

1 Answer

Dash panel all lights come on speedometer stops working on occasion. When this happens does not accelerate well.

sounds like a bad speed sensor, if sensor doesnt tell computer what speed your traveling then trany doesnt know what gear to select, try replacing speed sensor, that should solve your problem,im suprised check engine light didnt come on, anyway good luck hope this helps.

Dec 06, 2009 | 1999 Volvo S70

1 Answer

Flashing upside down arrow/ slow acceleration

This is a common problem of Volvo S40. You can try this trick to turn off the flashing arrow light.

1) Turn off Engine
2) Turn key to "On" position (Not start the engine), you will see the panel light will on
3) Step on the break paddle
4) Shift the gear from "P" to "L" 10 times
5) Turn key to " Off" position
6) Now you can start the engine.
7) If doesn't work, you can repeat the procedure.

Hope this tick help
Good luck

Jun 02, 2009 | 2000 Volvo S40

1 Answer

Suspension System problems

clanging on rough roads\
Ck exhaust pipe securements and clearances from body. huge o rings are used to suspend exhast and sometimes break and fall off.. Good luck
vibrabration on uphill acceleration
chk motor mounts by holding brake and accelerating
Sway bars seldldom are a problem unless mounting bushings are worn resal bad

May 07, 2009 | 2000 Volvo S40

1 Answer

No accelration on the highway


Mar 06, 2009 | 2000 Volvo S40

1 Answer


sounds like you need a new battery, it probably isnt running enought cranking amps to start your car, try a different battery and it should start fine

Dec 11, 2008 | 2000 Volvo S40

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