Volvo Community Forum. The Forums of the Volvo Owners Club

Forum Rules Volvo Owners Club About VOC Volvo Gallery Links Volvo History Volvo Press
Go Back   Volvo Owners Club Forum > "Technical Topics" > S40 / V40 '96-'04 General
Register Members CarsBlogs Help Calendar Mark Forums Read

Notices

S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004.

Information
  • VOC Members: There is no login facility using your VOC membership number or the details from page 3 of the club magazine. You need to register in the normal way
  • AOL Customers: Make sure you check the 'Remember me' check box otherwise the AOL system may log you out during the session. This is a known issue with AOL.
  • AOL, Yahoo and Plus.net users. Forum owners such as us are finding that AOL, Yahoo and Plus.net are blocking a lot of email generated from forums. This may mean your registration activation and other emails will not get to you, or they may appear in your spam mailbox

Thread Informations

Buzz at 2500/3000pm, and no power

Views : 128

Replies : 5

Users Viewing This Thread :  

Reply
 
Thread Tools Display Modes
Old Feb 10th, 2019, 11:33   #1
portal
Junior Member
 

Last Online: Feb 18th, 2019 22:01
Join Date: Jan 2015
Location: Ipswich
Default Buzz at 2500/3000pm, and no power

Hi everyone, 2001 V40 1.8 Auto

Suffering from lack of power generally. When trying to climb up a steep hill at 25-35mph, the engine really struggles. Opening the throttle just adds noise, and a loud buzzing is evident between 2500 and 3000 rpm. More throttle just makes the buzzing incrementally louder.

Slowly coming on and off the throttle just adjusts the volume of the buzz!

Engine has done 61k, and in other respects in fine. Has had cambelt and VVT pulley done previously.

There's no VVT tick tick burr, so that's not the issue.
There's no problem with the PCV, tested that today. Pressure at the oil filler is fluttery at idle, but there's negative pressure when lightly revved.

Thoughts?
portal is offline   Reply With Quote
Old Feb 11th, 2019, 12:15   #2
V40T4R
Senior Member
 

Last Online: Feb 19th, 2019 21:58
Join Date: Nov 2015
Location: Porto
Default

Ignition coil and/or ht leads
__________________
Phase 1 MY99 Manual V40 T4
V40T4R is offline   Reply With Quote
The Following User Says Thank You to V40T4R For This Useful Post:
Old Feb 11th, 2019, 13:32   #3
portal
Junior Member
 

Last Online: Feb 18th, 2019 22:01
Join Date: Jan 2015
Location: Ipswich
Default

Quote:
Originally Posted by V40T4R View Post
Ignition coil and/or ht leads
How confident are you on that? Just an idea, or based on some experience?

Cheers
portal is offline   Reply With Quote
Old Feb 13th, 2019, 19:00   #4
portal
Junior Member
 

Last Online: Feb 18th, 2019 22:01
Join Date: Jan 2015
Location: Ipswich
Default

Anyone agree or disagree?
portal is offline   Reply With Quote
Old Feb 15th, 2019, 22:41   #5
clarkey1984
Premier Member
 
clarkey1984's Avatar
 

Last Online: Today 10:45
Join Date: Jul 2014
Location: Beccles
Default

I'd chuck a set of new plugs in just to rule it out, plus it's a cheap fix if it does solve it.
__________________
Silver 2002 V40 T4 Sport Lux, "Sergeant Silver"

17 inch Mitsubishi Galant wheels, K&N 57i induction kit, Stainless single box exhaust system,
Ultra clear side repeaters, silvatek indicator bulbs, pioneer cd/aux/usb stereo.
clarkey1984 is online now   Reply With Quote
Old Feb 17th, 2019, 12:46   #6
Scoobymolly
New Member
 

Last Online: Feb 19th, 2019 22:33
Join Date: Jun 2018
Location: Bangor
Default

Maybe scan it and see if any fault codes.
Could be low fuel pressure,or autobox not kicking down.
Scoobymolly is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 11:19.


Powered by vBulletin
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.