Volvo RWD 700 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 2/2020 700 INDEX

[<<]  [>>]


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

Engine Idle Spike 700 1988

posted by  someone claiming to be Dennis Lalancette on  Sun May 27 10:34 CST 2001 [RELATED]

My 1988 740 Turbo wagon was running fine until a week ago. The engine idle spiked from 900 RPM to 1500/1800; 1500 cold and 1800 warm. The mechanical linkage is clean and lubricated; no problem there.

Punching the accelerator pedal drops it to 1100/1200 for a split second, and it then jumps back up to 1500/1800.

The idle drops to 1100/1200 in between gear shifts for a second, and it then jumps back to 1500/1800.

Two or three times in the last week, it dropped back to 900 momentarily, while I was stopped for traffic or a light. This is/was totally arbitrary, and it stayed at 900 RPM for just a flash.

My experience/intuition tells me this is probably caused by one of those obscure sensors that costs hundreds of dollars.

Which one???

Thanks, Dennis Lalancette





THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Engine Idle Spike [700][1988]
posted by  someone claiming to be Dennis Lalancette  on Sun May 27 10:34 CST 2001 >


<< < > >>



©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.