Well I've replaced my engine with a sbc 400, have a jegs rad and dual fans, guage says its a 220, check it with a heat gun says 170 on block, head and pump. I've replaced the sensor with Borg Warner from Oreillys. Can anyone help steer me in the right direction? I don't want aftermarket guages? Thanks

 

Anybody?

 

The factory gauge sucks. About the best you can do is add series resistance to the line to get it to normal.

 

Thanks for the reply is there a write up? How about another guage sensor, it read fine when I had the original motor in, now that I swapped I've been having nothin but problems? How are the ac delco sensors? Thanks in advance

 

quite often ,if you replace the gauge and use the proper sending unit ,all is well. if you suspect your gauge is bad, here is the info you need to buy a replacement:gm part #25034460 @ friesen chevy phone# 402-773-5538. i got one from them for my 86 camaro,it cost $61.96 out the door incl shipping

 

the resistance unit is built into the gauge itself .sometimes you can repair your own with parts from radio shack ect.

 

Thanks for the reply but this is a 92 firebird , I know firebird parts are a bit harder to find,

 

are you replacing the right one?? there is a sensor on the intake and a sender in the head.

 

Yes, I converted from tpi to carb, I placed the sensor on the passenger side head. The guage also read wrong so I placed it on the driver side head it read correctly for a bit then, it went to poo.

 

original guages are garbageeeeeeee

 

Autoinstruments out of California rebuilds gauges.

 

OK so now you know that when the "gauge" (I use the word loosely; it's really an "appearance" or "trim" package) reads whatever you said it reads, it means, "normal".

What difference does the "number" that the trim package points to make? All you need to know is, is it DIFFERENT FROM "NORMAL". If it's "normal", then all is well, even if "normal" is with the "gauge" pointing to 300. If it's something other than "normal", ,,,, ..... ,, well, you do the math.

As suggested, it sounds like you're messing with the wrong sensor. THe one that works the gauge is in the driver's side head between the #1 & #3 spark plugs.

 

Need help about coolant temperature...Coolant temperature is too high.The thing is that cooling fans don't turn on when cooling temperature is too high.But fans are okay.The're good,working properly.Anything wrong with sensors or something? Or with someone who need to turn them on ? Please help me.?

 

What IS the temperature, REALLY?

What temp are you expecting it to turn on at?

THe factory setup is for the fan to come on at around 235° and off at around 210°. If the rest of the cooling system is working properly, the car will sit and idle in 115° heat with the A/C on, with no trouble of any kind. If your fan turns on & off at those temps, then your problem lies elsewhere (if you even have a problem at all).

 

That's ok then but i noticed one unpleasant thing...When my car is up to normal level of warm suddenly power of engine reduces...But first hour or more it's very powerful but then unexpectedly it loses all agility and sensitivity.