Volvo RWD 700 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 3/2014 700 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Turbo - Too Much Boost Problems 700 1987

posted by  Wicked Pete on  Sat Apr 17 17:17 CST 2004
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sun Apr 3 06:33 CST 2011
[RELATED]

I replaced the heater & radiator hoses today on my daughter's 740 turbo and headed into the mountains to check the cooling system(we live in Denver, Co.). As I started to pull the hills the turbo would quickly overboost and the turbo gauge would push far into the yellow. I found just tiny changes in pedal pressure would cause the turbo gauge to rapidly climb. If I let it go the needle would point straight down and the motor would start to cut out.

The car is an 87 740 Turbo with 130,000 miles w/Automatic.

I'm a pretty good wrench but I don't know much about Volvo turbos. Where do I start in diagnosing this? Is this indicative of a waste gate issue or something else?

Thanks in advance for your help.

Pete






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Turbo - Too Much Boost Problems [700][1987]
posted by  Wicked Pete  on Sat Apr 17 17:17 CST 2004 >


<< < > >>



©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.