2000 s40 limp mode? - Volvo Forums - Volvo Enthusiasts Forum

Volvo S40 The S40 is Volvo's most affordable sedan with all the amenities of a luxury sports car.

2000 s40 limp mode?

  #1  
Old 01-08-2019, 11:37 PM
Junior Member
Thread Starter
Join Date: Jan 2019
Posts: 1
Default 2000 s40 limp mode?

So the car suddenly threw up a bunch of warning lights and the gauges stopped working. Car idled very rough, and when I stepped on the accelerator the car barely moved. Also there is enough air being released from the oil cap to shoot hot oil all over my face when removed. Clogged pcv valve or is the engine just gone? Ive been told it could be the alternator, or the electric system. Ive installed new led reverse lights, headlight bulbs and a car audio system
could any of these things cause the car to have engine problems like this? Thank you.
 
  #2  
Old 01-09-2019, 12:19 AM
Senior Member
Join Date: Feb 2013
Location: Mesa, AZ
Posts: 339
Default

The oil flying out is probably a PCV problem.

I'd guess the rest is a charging / low voltage problem. Hard to imagine a whole lot of unrelated "systems" crashing at the same time, but that's a good description of what would happen when the battery voltage has dropped to a critical level.
 
  #3  
Old 01-09-2019, 08:14 AM
Hudini's Avatar
Senior Member
Join Date: Oct 2007
Location: Shanghai, China
Posts: 2,703
Default

Excessive blowback from the oil fill is also a symptom of a clogged cat convertor (or a banana in the tailpipe if you have anyone who likes jokes). I have never heard of a failed cat in this car though. The test is to remove the top O2 sensor to see if the car runs better.

Is the turbo good? It's also possible the turbo has failed however I'm thinking it would have made a mechanical grinding noise before failing. All just a guess.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Rumal
New Members Area
0
02-15-2018 05:22 AM
cincoblaze
Volvo S40
1
09-18-2015 10:02 PM
RedTurbo850
Volvo 850
7
02-26-2007 11:22 PM
swede850T
Volvo 850
2
07-04-2005 04:44 PM


Thread Tools
Search this Thread
Quick Reply: 2000 s40 limp mode?


Advertising
Featured Sponsors
Vendor Directory

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.