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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

ECT replacement - both engine temp sensors the same/compatible? 700

posted by  Chris Mullet on  Tue Aug 18 01:42 CST 2009
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 09:08 CST 2014
[RELATED]

I guess by now you've figured out it's the aft sensor that needs attention. Also, as the other responants noted, there are two different sensors available for 740's. I don't know about the differences by year, but I do know that cars equipped with EGR (like in Calif) get a different sensor than the non-EGR cars. I also know that if you get the wrong one, the car might run OK but it will throw the check engine light. This happened to my mother-in-law's 89 740 Bosch EGR car when she took it to the wrong mechanic. I'm saying all this because I'm wondering if your car had the wrong one to begin with (previous owner boo-boo??) in which case you don't want to replace it with the same as what's in there.

If you have EGR, accessing the ECT for replacement is a PITA. I'm guessing your 90 Regina is non-EGR if it's a 49 state configuration.

Reference reading:

http://www.brickboard.com/FAQ/700-900/EngineSensors.htm#EngineTemperatureSensors






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.