2000 Volvo S40 Logo
Anonymous Posted on Jun 28, 2008

Volvo s40 gdi

Hi, my volvo (99 reg) gdi seems to run well until it reaches about 3000 rpm it then hits a flat spot where you feel a loss of power to the point that if you try to accelerate it will even lose revs? but this only happens 2 out of 3 times sometime you go out and it runs beautifully! i've had a new ECU and checked for carbon build up. i've also had the throttle valve checked and a new cat put on but it still happens? seems to run well if floored? problem happens more when cruising?
can anyone help??

1 Answer

A

Anonymous

My 1998 Volvo does the same sometimes. Better petrol helps for me, these engines like the higher octane petrol. My car does not like the BP petrol at all for example.

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1helpful
1answer

When driving my 1997 Audi A 4 1.8t there is a loss of power around 3000 rpm, what could be causing the issue?

run the fault codes and look for a problem area in the vane actuator of the turbo
it could be a sensor problem or a MAP sensor problem
this is indicated by the pressures being generated or not generated by a turbo generating pressure from the throttle opening on acceleration or held at constant speed
1helpful
1answer

Volvo v40 2000nx reg 1.8 NON gdi engine constant high rpm can having no thermostat cause constant high rpm or can a briken lambda sensor cause high rpm cleaned all throttle body cleaned idle valve checked...

Yes, having no thermostat can cause the car to run fast as it will still be set in it's "warm up" mode and will be injecting a richer mixture of fuel/air into the cylinders. There may be an additional cold start injector that just works while the engine is cold. You will probably use more fuel like this. It's not a great idea to run with no thermostat anyway because you get uneven hot and cold spots around the engine which is bad for it. Cheers
0helpful
1answer

Volvo v 40 non gdi high revs constant

Still think ot vacuum related .This will push the revs up sky high .Get a good cigar and pulloff a vacum pipe .Take a good puff on the cigar now puff the emoke down the vaccum pipe .Now do you know what your looking for .You got it ,,, smoke ,,,,than you have found the leak.Thats if you have one ..Can you get a obd check it will tell you what it is ..Thermostat removal wont change the engine revs
0helpful
1answer

Hi! I have problem with my VOLVO S40 1.8GDI 2000. When I start the engine RPM its fine, but after few minutes RPM starts jumping for about 30 seconds and again everything is fine until i restart engine...

yes buit its complicated and could be a number of things, best advice is a dealer because it work out cheaper in the long run that changing parts willi nilly
2helpful
1answer

Timming belt marks

Click on the following free direct Link. It has the Timing: Belt and Mark Diagrams for your 2001 Volvo S40. Plus additional Instructional and Directional Diagrams.

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

http://www.2carpros.com/car_repair_information/year/2001/make/volvo/model/s40/2001_volvo_s40_timing_belt_diagram_marks.htm

0helpful
1answer

Lack of power

for starters: check clogged fuel filter, check fuel pressure, check for dirty air filter, and check for spark in spark plugs.
2helpful
1answer

Where's the fuel pump relay located on a volvo s40 1999 1.8 gdi?

if the pump is not working check under carpet along edge by left rear door there is a spot they corrode near a connector even look in the connector if you see green on connector replace the section of wire bypass connector
1helpful
1answer

VOLVO S40 SE 2001RPM HIGH

YOU MAY HAVE A IDLE SPEED CONTROL VALVE PROBLEM, CLEAN IT FIRST, THEN DISCONNECT THE BATTERY, FOLLOW THE PROCEDURE I HAVE ATTACHED.

Here is the most common cause of this stall and idle speed issues, it is the idle speed control air-bypass valve and throttle valve, they get full of gunk over the miles and cause idle issues (stalls) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.
0helpful
1answer

2000 Volvo S40

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
Not finding what you are looking for?

963 views

Ask a Question

Usually answered in minutes!

Top Volvo Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

john h

Level 3 Expert

29494 Answers

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

Answer questions

Manuals & User Guides

Loading...