Volvo V40 - Recent Questions, Troubleshooting & Support


You have a problem with the emmitions most likley the cat'

2007 Volvo V40 | Answered on Apr 29, 2019


Has it ever been tuned up ie. Plugs, wires or boots, filters, and injection cleaning? Check the tire pressure, under inflated tires are the #1 cause of poor mileage. Also consider fuel quality and additives that don't contribute to combustion. I hope this helps, Take care.

Volvo V40 Cars &... | Answered on Feb 03, 2019


Probably a spurious count. Reset the ECU and check again if the Engine Check light comes on again. My Volvo told me that the reversing camera malfunctioned. That was true, I haven't got one!

Volvo V40 Cars &... | Answered on Apr 10, 2018


You need a professional mechanic with a scanner. Never drive a car with a flashing check engine light except to get it off the road. Flash = serious issue.

2001 Volvo V40 | Answered on Mar 05, 2018


Have the EGR valve checked. This unit is the exhaust gas recirculation valve and when faulty it WILL cause loss of power.

2001 Volvo V40 | Answered on Feb 26, 2018


LUCAS is one of the best sold at any parts store. And is made for just that. Read MNFCT recommendations and directions for uses on EGR, PCV and intake manifold build up.

Volvo V40 Cars &... | Answered on Feb 21, 2018


check for relay for that light and possible ground wire problem

2000 Volvo V40 | Answered on Nov 25, 2017


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

2000 Volvo V40 | Answered on Nov 16, 2017


you may want to look at your Catalytic / O2 sensor(s) Watch this video to learn more about how the O2 sensor works and what is required of the O2 sensor for it to work in the vehicle. https://www.youtube.com/watch?v=DvKZ2GDYEz4 Note: The vehicle in this vehicle does not compare to your own since the sensors on your vehicle may not be under your hood but may be on your header exhaust or you could have one on the lower exhaust pipe and one on the upper exhaust / manifold.

Volvo V40 Cars &... | Answered on Nov 04, 2017


Sounds like the transmission interlock switch for the starting circuit is malfunctioning. It keeps the car from starting in gearshift position but park.
The interlock switch can be temporarily jumped out of the circuit to test if this alleviates the starting issue.
If it does, get repaired immediately since this is a safety feature.

2001 Volvo V40 | Answered on Oct 02, 2017

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