Volvo AWD S70 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 5/2004 S70 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

hard to start when hot outside despite tune up S70 1998

posted by  Djk2 on  Sat May 26 14:49 CST 2007
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue May 18 05:03 CST 2010
[RELATED]

My car wasn't starting well, particularly when it is hot outside. So I took it in and the mechanic said it needed a tune up and timing belt change. The error code was cylinder 1 misfire.
Well as usual, it starts well if it is cold, but on hot days, it's really difficult to start. after it starts the exhasut smell like gas. But the tune up really helped my gas milage and the car runs great once it's started.
The mechanic said give the fuel system cleaner time to work, because there was a lot of carbon deposits. So I did and ran through three additional treatments.
Any way, it still is difficult to start.
I'm wondering if there is a leaky vaccum hose? Because that would be affected by hot days.








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    hard to start when hot outside despite tune up S70 1998

    posted by  KlausC on  Sun May 27 10:32 CST 2007
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    I wonder... When my 850 had those same problems it turned out to be the fuel pressure regulator leaking. There is a vacuum line from the FPR to the intake manifold and when my FPR failed, gas leaked into the vacuum line and got sucked into the intake and when I tried to start the car (about 20 second cranks) the exhaust would push out a puff of black smoke when the engine caught. Otherwise every thing else ran fine.

    Klaus







  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    hard to start when hot outside despite tune up S70 1998

    posted by  KlausC on  Sun May 27 05:10 CST 2007
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    When the engine is warm, check the temp gauge and if it is low, you will need a new coolant temp sensor and possibly a thermostat.

    Klaus






<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.