Engine/Transmission (1998.5 - 2002) What's Normal For An EGT?

[PKleine]

I installed gauges awhile back and now I have a question about what is normal. When I installed the EGT, I put the probe in the usual place, pre-turbo. The highest I've seen it read is about 725-750, even going up 5% grade in 5th WOT @2500 rpm. Twice now it has stuck while indicating 725-750. The first time i noticed ~725 I was stopped. The temp didn't come down. (Normally, idle reading is about 250. ) I goosed it a couple times, no change. Everything else either looked or sounded normal so I continued driving, after the second shift, it began to behave normally. Today while driving it stuck again, I shifted down to 5th and let off the throttle, ~750! Slowing more (for the curves) and down to 4th and everything is normal again. Has anybody seen anything like this? I suspect it is the gauge, any thoughts?



Thanks,

Pete

 

[Diesel Gunner]

You have a bad gauge and/or probe. Oddly enough JMeehan had about the same problem without the sticking. Don't trust that gauge! I would send the whole shebang back for adjustment or replacement after calling the manufacturer.

 

[TexasCat.]

With my ETH i see about:



300-325 at idle

725-850 at 70 depending on wind and slope

1000-1100 at WOT with the chip off

1350-1400 with chip on at WOT



sounds like your guage has some problems.

i have had an isspro guage for a little over a year now and have had no problems with it so far.

 

[Oil Burner]

when stock, my eth would see 1200 towing uphill. I can hit about 1000 empty under wot. definately a problemm with that gauge.

-Jason

 

[pwr2tow]

Check the connections.



I had the same thing happen to mine, it turned out to be the connection by the probe, it didn't look corroded but after taking it apart and retightening it all is well. If it's not the connections do as the others said, send the whole thing back and get a new one.



Ron