Need help with this relay.
Thread Starter
Racer
Joined: Sep 2001
Posts: 397
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From: CORTLANDT MANOR NY
Need help with this relay.
There is a relay on the firewall to the driver's side of the wiper motor on my 70 Cpe with a/c & auto that begins clicking when the car gets warmed up.
I don't know what the problem is and don't know what the relay does. The wipers work fine but the washer pump needs a rebuild. If the relay has something to do with the operation of the washer pump then I may have a cheap solution to the pump problem.
I have looked in several catalogs but can't find the relay. It has 3 prongs but there is only 2 wires connected to it. I have tried to trace the wires but they go into the wire harness and I am not yet ready to cut open the harness.
Could it possible be the TCS relay? My TCS system is disconnected so there shouldn't be any juice flowing through the relay.
Any help would be appreciated.
I don't know what the problem is and don't know what the relay does. The wipers work fine but the washer pump needs a rebuild. If the relay has something to do with the operation of the washer pump then I may have a cheap solution to the pump problem.
I have looked in several catalogs but can't find the relay. It has 3 prongs but there is only 2 wires connected to it. I have tried to trace the wires but they go into the wire harness and I am not yet ready to cut open the harness.
Could it possible be the TCS relay? My TCS system is disconnected so there shouldn't be any juice flowing through the relay.
Any help would be appreciated.
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From: Paducah KY
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St. Jude Donor '03
Re: Need help with this relay. (BUGGSY1970)
On the 71, there are actually two relays on the same mounting bracket. The one closest to the firewall is the TCS delay relay and the one mounted on the forward side of the bracket is the TCS reverse relay. Both of mine are removed.
Dave
Dave
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From: Paducah KY
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St. Jude Donor '03
Re: Need help with this relay. (PRESSURERAT)
What the hell is the tcs ? I read about this from time to time and have to know.
TCS = transmission controlled spark.
The system is designed to eliminate vacuum advance at the distributor under certain driving conditions. Advance is shut off until the transmission is in high gear or in reverse. The system consists of: transmission switch, engine coolant temp switch, time delay relay, vac adv solenoid and an idle stop solenoid.
The real short version is
TCS
You supply the phonetics.....
A bunch of crap to make the tree huggers feel good.
:lolg:
Le Mans Master
Joined: Sep 2002
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From: Myrtle Beach SC
Re: Need help with this relay. (Rolling Thunder)
The system is designed to eliminate vacuum advance at the distributor under certain driving conditions. Advance is shut off until the transmission is in high gear or in reverse. The system consists of: transmission switch, engine coolant temp switch, time delay relay, vac adv solenoid and an idle stop solenoid.
A bunch of crap to make the tree huggers feel good.
A bunch of crap to make the tree huggers feel good.
TCS got the bum rap during the early 70's but the real culprit was the reduced compression ratios which reduced power....not so in 70 but moreso in 71 and beyond.
There is a difference between 70 and 71 TCS...two solenoids were used in 70 (one on either side of carb) while 71 used only one on the driver's side.
If your firewall mounted relay is disconnected...it probably is also disconnected at the TCS carb-mounted solenoid...let us know.
[Modified by hunt4cleanair, 4:56 AM 11/6/2003]
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St. Jude Donor '03
Re: Need help with this relay. (hunt4cleanair)
TCS got the bum rap during the early 70's but the real culprit was the reduced compression ratios which reduced power....
Thread Starter
Racer
Joined: Sep 2001
Posts: 397
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From: CORTLANDT MANOR NY
Re: Need help with this relay. (Rolling Thunder)
It looks the relay is for the TCS system. It was connected at the manifold but the vacuum lines were not connected. Without vacuum it is not functional so I went ahead and disconnected the electrical connection and hopefully that will stop the clicking.
