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Volvo S40 Questions

Get answers to questions about your Volvo S40 at RepairPal. Find solutions, diagnose problems and get back on the road.

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430
questions

is it my battery or the starter

The car won't start. It makes a sound when I start it, sounds funny.

Doesn't do it if coming to rolling stop and brake pedal doesn't vibrate. Just a noticeable pull

After towing, fixed cut timing belt and replacement of 2 bad nozzles, the engine doesn't start nor the plug shocks.

Cracked oil pan. Fixed crack, & filled oil. Tries to turn over, but won't start.

my low beam right headlight stopped working can I repair the cem on Volvo s40

The 6 pin connector was cut off the amp wiring and I need to figure out where to solder the wires on the new pin connector

Just bought 2 tires . I have them on the front. the car seems to drive pretty straight . maybe it pulls to the right but not seriously. Is it possible for a car to drive pretty straight and still be out of alignment?

Was in an accident and the front passenger airbag deployed.

And the engine goes on.

fan for heat & air stopped blowing

Is there a control module that may be shorting out for instrument cluster? Happens once in a while

I have a 07 Volvo s 40 I had been in a accident when I had the car body repair the car won't start or say anything everything work but won't start it say immobilizer see manual

I guess there saying because of this, the car will not pass emissions untill we figure this out...
Im thinking something else is not working but the check engine light does not turn on. Code Po420
Catalyst converter Tiiicency below threshold bank 1 (5)
What does it mean please help me figure this out...

Gave up o replacing sensors .light comes on after 20 mi Went to dealer they said no recall is opened.It did not have a extra harness but I thought it could have been taken out , last owner does not remember. Dealer did not mention a reset or software upgrade . Where do I go to find out if this car needs updated software or to be reset after a new sensor is put in ? What will disconnecting the battery for 8 hrs do?Exhausted in Oceanside ca

From time to time the gauges and instruments go dead on my dashboard. After shutting the car off and starting engine they come back to life. Other wise the car works fine. Any ideas?

Thinking of buying a 2002 Volvo 40s but he dashboard does not work. No gauges or lights work on the dash. Could this be a major problem or just a fuse?

What exactly is that code

I checked the spark plugs they were very dirty I replaced um an replaced my coils as well still no start I well did a full oil change an there was no milky substance so I'm thinking my head gasket is fine.

Car runs awesome not a hiccup with 200000miles taken to dealer for all services. But smog tec tells me it's not worth fixing n I need to sell it,n check engine light was disabled somehow? I reset codes n only came up with code 420, Can't believe car is not worth fixing! Runs awesome super clean...

I've switched the relay 3 times the hazard switch twice still nothing could the cem have something to do with this and if so can I use one from the salvage yard and how are they removed

What could be the problem

I have a 2000 Volvo s40 and it starts and turns off if my foot is not on the gas I was told I need a tune up and spark plugs. Is that true my check enigine light is on

Slight sound at idle as well. Drives fine, shifts fine but sound does not stop. Smells oily. Three times engine cut out like was not getting gas but has not happened for quite some time. Had oil changed and fluids checked....said transmission fluid was very dark. No codes showing on messages

The car has sat up for about 2 years before I bought it and I had to replace the timing belt bracket but it still runs rough when first started and has trouble getting up to speed when I take off or slow down

First the car started cutting off. then the knocking noise began

stop working as well as the automatic door locks

I replaced radiator myself and did not measure how much fluid I lost when trans. hoses were disconnected.

Been noticing a rattling noise the car is idling in park it's fine
Shift into reverse it rattles for a second
Neutral is fine
Drive it rattles 3 times
And when accelerating past 20 or 30 it rattles for a second as well feels like it's on the left.

Joints maybe or mounts my drive in Houston always has a ton of bumps and it rattles when I go over those as well.

01 s40
173k
Had battery tested and fully charged at autozone
Then figured it was that alternator
Had that and the serp belt replaced.
Ran fine for a week then I had the door open for maybe 10 mins (car off light on) and then it wouldn't start.
Jumped it and took a drive for 30 mins to see if it would charge up, and wouldn't start again.

Thinking there's a power drain from a light or something any clues on common issues or where to start looking?