Project failure - lets talk.
Thread Starter
Burning Brakes
Joined: Oct 2006
Posts: 794
Likes: 2
From: Allentown Pa.
Project failure - lets talk.
Fellow C-4 guys, Today my buddy Ted and I attempted to install a sensor into the block to ground the fan relays and turn the on the fans at 200 degrees instead of 228 as the computer will do. We used pro tools but we could not break the plug loose were it should go. The plug is under the first spark plug on the drivers side of the car. After soaking the plug for two days it still did not come out when we worked on it. Murfies law showed up and we ruined the plug. My question is, can the sensor be installed somewhere else that is easier or, has any one had the computer programmed to turn the fans on sooner and make these damn cars run cooler in the summer when the air conditioner is on? Come on chime in. By the way I bought this kit from MAM.
Le Mans Master
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
What kind of wrenches were you using to try and remove the sensor? 12 point box, open end...other???? Since you have messed up the sensor, I would suggest that you use a 6 point socket (looks like a clay impression of the bolt head/sensor head) and a breaker bar. A 12 point will round off the edges of the sensor, same as a open end or similar wrench.
The new sensor should go in with Teflon tape on the threads or there should be a sealer on the threads.
I would prefer to have the computer re-programed to turn them on at a temp that I wanted. Most of your fans are a two stage fan set up. So you can program BOTH stages to come on earlier.
The new sensor should go in with Teflon tape on the threads or there should be a sealer on the threads.
I would prefer to have the computer re-programed to turn them on at a temp that I wanted. Most of your fans are a two stage fan set up. So you can program BOTH stages to come on earlier.
Thread Starter
Burning Brakes
Joined: Oct 2006
Posts: 794
Likes: 2
From: Allentown Pa.
What kind of wrenches were you using to try and remove the sensor? 12 point box, open end...other???? Since you have messed up the sensor, I would suggest that you use a 6 point socket (looks like a clay impression of the bolt head/sensor head) and a breaker bar. A 12 point will round off the edges of the sensor, same as a open end or similar wrench.
The new sensor should go in with Teflon tape on the threads or there should be a sealer on the threads.
I would prefer to have the computer re-programed to turn them on at a temp that I wanted. Most of your fans are a two stage fan set up. So you can program BOTH stages to come on earlier.
The new sensor should go in with Teflon tape on the threads or there should be a sealer on the threads.
I would prefer to have the computer re-programed to turn them on at a temp that I wanted. Most of your fans are a two stage fan set up. So you can program BOTH stages to come on earlier.
Le Mans Master
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
I just had my computer re-programed two weeks ago. They now come on at 190 and 210. I like this much better.
So you are not talking the screw in sensor itself, but the plug that attaches to the sensor. Is is like the knock sensor plug where you have to squeeze it to get if of or is it like the standard plugs with a plastic latch that holds it in place?
So you are not talking the screw in sensor itself, but the plug that attaches to the sensor. Is is like the knock sensor plug where you have to squeeze it to get if of or is it like the standard plugs with a plastic latch that holds it in place?
Le Mans Master
Joined: Feb 2005
Posts: 6,475
Likes: 564
From: Clearwater Florida
... Hide a toggle switch under the dash or wherever and run one wire off the switch to a good ground ... run the other side of the switch to the grounding wire for the engine cooling fan relay ( the sensor you bought from MAM will have instructions ) and voila ! you have absolute control over the fan turn on temps ... don't separate the wire for the relay , just tap into it and the computer will turn it on at 228 when you aren't paying attention ..............
Racer
Joined: Jun 2006
Posts: 361
Likes: 6
I bought an in line hose adapter with bung from Summit. I installed it in the top radiator hose. Something like below but not sure of size. Measure hose ID first.
http://www.summitracing.com/parts/atm-2283
http://www.summitracing.com/parts/atm-2283
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Racer
Joined: May 2004
Posts: 411
Likes: 1
From: New Hampshire
The manufacture of that switch suggests a 5/16" square piece of stock steel. I tried it and the plug would not budge...rounded it off. The 5/16" stock steel just twisted.
If I ever have to remove the head then I will deal with it. Not sure at this point if it can be removed with an easy out or not. The location is bad to get tools into that area.
I bought a chip on ebay that was programmed to turn the fan on at a lower temp.
If I ever have to remove the head then I will deal with it. Not sure at this point if it can be removed with an easy out or not. The location is bad to get tools into that area.
I bought a chip on ebay that was programmed to turn the fan on at a lower temp.
Thread Starter
Burning Brakes
Joined: Oct 2006
Posts: 794
Likes: 2
From: Allentown Pa.
Thread Starter
Burning Brakes
Joined: Oct 2006
Posts: 794
Likes: 2
From: Allentown Pa.
The manufacture of that switch suggests a 5/16" square piece of stock steel. I tried it and the plug would not budge...rounded it off. The 5/16" stock steel just twisted.
If I ever have to remove the head then I will deal with it. Not sure at this point if it can be removed with an easy out or not. The location is bad to get tools into that area.
I bought a chip on ebay that was programmed to turn the fan on at a lower temp.
If I ever have to remove the head then I will deal with it. Not sure at this point if it can be removed with an easy out or not. The location is bad to get tools into that area.
I bought a chip on ebay that was programmed to turn the fan on at a lower temp.
Last edited by Allentown Ernie; Aug 14, 2013 at 09:12 AM. Reason: adding more info
Le Mans Master
Joined: May 2006
Posts: 7,708
Likes: 266
From: indy indiana
I have an old army buddy that lives in Allentown, near Cedar St. (?) and US-22. He is an x vette owner ( 1965 vert) and an x dealer mechanic. Agent orange has taken a few bites out of him but he may still help out.. you gotta ask. His name is Tony Ionno. Tell him Fred mentioned his name. He is a pretty good guy and I stop in and see him when I go thru there (am semi driver)
Racer
Joined: Nov 2012
Posts: 375
Likes: 0
Yeah, that plug has a 5/16 square hole in it for removal. We used a breaker bar and brute strength and it would not budge, we rounded off the square hole. I am so pissed because I am so fussy with my Vette. Now, please tell me more about this chip that would lower the temp that the fans come on. We also discussed installing the toggle switch to turn on the fans and that is a option although I like the way the sensor would turn the fans on at 200 and off at 185. Come on fellas keep chiming in with advice. Corvette 40, thanks for that information, that is another option. I printed out that paper for future consideration.
Racer
Joined: May 2004
Posts: 411
Likes: 1
From: New Hampshire