IPD sale XeMODeX - Experts in Volvo Electronics Free shipping all USA - Experts in Brakes
Did you know? 🤔
Logged in users can get email notification of topic replies Log in or register (free).
Amazon Link Buy anything with this and it helps MVS!

Cold start . Rpm dips

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40

Posts: 7
Joined: Tue Jan 30, 2018 11:45 am
Year and Model: 2004
Location: Los angeles
Has thanked: 2 times
Been thanked: 0
United States of America

Re: Cold start . Rpm dips

Post by Ivano2937 » Thu Mar 15, 2018 2:16 pm

RickHaleParker wrote:
Thu Mar 15, 2018 9:25 am
Is the engine dirty?
Did you get grease or oil moved around as you changed the IAC?
You sure it not heat burning off oil or grease.
If the engine is dirty, take it to a car wash and wash off the engine, see if the smell goes away.
So it turns out one of the injectors has a rubber that's going loose?
How hard is this to fix myself? It seems like it needs to be readjusted?

User avatar
Posts: 3893
Joined: Mon May 25, 2015 2:30 pm
Year and Model: See Signature below.
Location: Kansas
Has thanked: 3 times
Been thanked: 478 times
United States of America

Re: Cold start . Rpm dips

Post by RickHaleParker » Thu Mar 15, 2018 4:57 pm

Align and Tap ... Tap! it back down with a rubber mallet. Make sure you don't damage the O-Ring.
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

Posts: 32
Joined: Sat Jan 06, 2018 6:47 pm
Year and Model: 2010 XC60
Location: Texas
Has thanked: 0
Been thanked: 2 times
United States of America

Re: Cold start . Rpm dips

Post by QUARKS40 » Sun Mar 18, 2018 7:40 pm

RickHaleParker wrote:
Thu Mar 15, 2018 4:57 pm
Align and Tap ... Tap! it back down with a rubber mallet. Make sure you don't damage the O-Ring.
If you do damage it though, the fix is to remove the fuel rail, which is easily done, but when you do, you will remove all the fuel injectors with it, except possibly the one with the damaged o-ring in your case. You will want to replace all the o-rings at that time, top and bottom, of all the injectors. you'll need p/n 30731083 qty 4
I have some questions though..........
How many miles on this vehicle?
How long do you plan to keep it ?
2010 XC60 - P*, 3 Spoke steering wheel retro, Gearshift retro.
2001 S40 - 14T, BBTB, turbo back stainless DP, Upsolute, KW, 15mm rear sway, 17" Konig wheels, Custom Arctic Silver/Sonic Blue pearl paint, custom interior

Post Reply
  • Similar Topics
    Last post