S70 hard cold start - Volvo Forums - Volvo Enthusiasts Forum

Volvo S70 Made from 1998 to 2000, this sporty model replaced the 850 sedan and instantly became a hit.

S70 hard cold start

  #1  
Old 11-25-2017, 05:37 PM
Junior Member
Thread Starter
Join Date: Nov 2017
Posts: 1
Default S70 hard cold start

I changed the plugs and wires, put in a new ignition switch relay, the alternators fine, the battery is charged and has clean terminals and good connection, there's fuel pressure, but in this cold weather it always has a hard time turning over. it has to crank for about 6 seconds or more sometimes, but usually always will. Its throwing a code for the secondary airbox which ive heard can be deleted and is mainly for emissions, could this be my problem? Ive only worked on Japanese four cylinders until now, im lost here guys haha.
 
  #2  
Old 02-03-2018, 10:52 PM
rspi's Avatar
Administrator
Join Date: Mar 2009
Location: Albuquerque, NM
Posts: 15,762
Default

I don't think so.

Probably the ECT is going bad.
 
  #3  
Old 02-04-2018, 11:04 AM
Psaboic's Avatar
Super Moderator
Join Date: Jan 2006
Location: SW, WA
Posts: 2,197
Default

I agree, sounds like the ECT might be on its way out. ECT= Engine Cooolant Temperature sensor. A small sensor located right by the thermostat housing. Sends a signal to the computer telling it the temperature of the coolant so the computer can properly adjust the amount of fuel to the engine so the mixture is no too rich or too lean. Fairly easy and inexpensive fix.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
George4
Volvo S40
9
09-17-2016 05:34 AM
Prohde
General Volvo Chat
0
12-31-2015 09:13 AM
adub96
Volvo S60 & V60
2
01-08-2008 10:02 AM
volvo 4 life
Volvo 240, 740 & 940
3
08-09-2007 08:55 PM


Thread Tools
Search this Thread
Quick Reply: S70 hard cold start


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.