when taco plate senders go bad... |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
when taco plate senders go bad... |
type47 |
Jun 30 2008, 08:16 AM
Post
#1
|
Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
i'm troubleshooting my oil temp in the combo gauge that doesn't give a temp reading. when i turn on the ignition, i see the needle jump to the cold line but no deflection on a warmed up engine. i measured the resistance of a spare taco i had on the bench and got about 1300 ohms and the one on the engine in the car doesn't give any resistance so i've deduced it's bad and will swap it next oil change.
do taco plate senders ever go bad? |
ericread |
Jun 30 2008, 08:43 AM
Post
#2
|
The Viper Blue 914 Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California |
After 35 years, everything has the potential to go bad. However, I would look at the wiring first. There's a better chance the wiring has gone bad/gotten shorted than the actual sender going bad.
Eric Read |
r_towle |
Jun 30 2008, 08:51 AM
Post
#3
|
Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
I agree.
There are two connectors that could be dirty enough after 35 years to give false/no readings. One is under the computer/battery tray. Its where the wire comes up into the engine bay and plugs into the wiring harness. Good place for corrosion. The second is under the tunnel carpet, passenger side just near the shifter. Again...good place to get wet over the years. The nice part is these two connectors give you a built in place to test the sender as you mover towards the gauge. rich |
type47 |
Jun 30 2008, 07:37 PM
Post
#4
|
Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
i traced continuity from the gauge to the taco sender and i think the wire is OK. i disconnected the wire from the gauge and the sender to avoid error. i tried to measure the resistance of the sender in the taco plate and got a confused reading on the one mounted on the engine. i got a steady reading of the resistance on another sender not mounted. i was just wondering if anyone had encountered a bad sender as that is what i suspect i have and i have never heard of a bad sender.
|
Lo-Fi Version | Time is now: 9th May 2024 - 12:59 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |