The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

can warped rear rotor cause bad fuel economy? 200

posted by  southern fried volvo on  Mon Jan 3 02:48 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Thu Dec 19 00:38 CST 2013
[RELATED]

Two weeks ago, I changed the brake pads on a 1991 Volvo 240 with automatic transmission. While doing the job, I noticed the REAR left rotor was warped. (As I turned the rear axle, the rear left rotor would stay in line, then suddenly scrub against the brake caliper. Also, the previous pads were all worn, but the rear left outer pad was EXTREMELY worn down to the metal.

Ever since the brake job, fuel economy has dropped from 22-24mpg down to 15-18mpg. Right after the brake job, the temperature briefly dropped below freezing for a few days, so I thought another component was causing the gas-guzzling issue. But now that the temp has gone back into the 50-60 degree range, fuel economy is still terrible.

Can a warped rear rotor cause a 5mpg drop in fuel economy??? Did I worsen the problem by placing new pads on these (1 year old) rotors? Or is another component causing the problem? (Fuel Pressure Regulator, Coolant Temp Sensor, Fuel Filter, etc.)

NOTE: The Brickboard is always right. Those cheap AutoDrone "lifetime" brake pads did not last very long. This time, I got a better brand.

[[ southern fried volvo '91 240 165k mi ]]






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©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.