These are the readings I get after my engine rebuild with engine at operating temperature. Originally the temp was a lot higher and the pressure was lower. I have a 2.8 V6 GT with the Fiero store fan switch and thermostat for the hypertech chip. The car also seems to run richer and the mileage goes down to 21 MPG when it's under 50 degrees F outside. Other than that it seems to run ok.

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And.

Voltage and Oil pressure look good for a running engine. I can't read the temperature guage.

The stock Fiero likes to run at 195F. At lower temperatures, the car will run richer (lower gas milage) because the ECM doesn't think the engine is warmed up. TPS sensor?

Changing to non stock chips for performance reasons usually sacrifices gas economy.

[This message has been edited by Old Lar (edited 11-04-2001).]

The temp gauge is reading less than 1/4 of the temp scale. I ordered the fan switch and thermostat from Rodney Dickman to see if this makes it run a little leaner/better as they are for a higher temperature. The pictures were taken after warming up the engine to operating temperature. Thanks for your reply I sort of suspected this and needed some comfirmation.

Everything looks normal. The temp gauge is slightly lower than my Formula with Rodney's 180 Thermo and 195 fan switch. With the stock thermo and fan switch, it ran almost exactly at 200, with the fan coming on at 235 - just like it's supposed to. Your car will run slightly cooler and take longer to warm up if the thermo isn't seated properly, cuz it won't seal. Not sure - but R&R'ing it has fixed that for me in the past.

Thanks, one more thing I can try.

I wouldn't trust the temp gauge, I've had several that give false or innacurate readings. Hook the ECM up to a scan tool and take the reading right from there (If you have access to one). It's the only way of getting an accurate reading.

Well another way, which I'm working on is to get mechanical gauges, much more accurate! I got my oil pressure going, and it holds up just over 60. Once I get the plug out of my head I'll have a real accurate temp as well.

Mine as well post a question while I'm here, is it normal for there to be what sounds to be a bit of air discharging from the gauge? I've checked everywhere for oil leaks, and there doesn't seem to be any. Could this be what was in the tubing when I first installed it? (only went in on Friday) Thanks,

Brandon

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The o-ring on my 85SE v-6 thermostat was cut and caused it to run at the same temp you are showing.

Look at the t-stat to see if it is ok.

ive got the same fan switch/thermo. my car runs at same temp as yours, my oil/batt gauges are 3/4 way over, almost in red.

ie 160*, 14.5 volts, 70 pnds oil

been same for 90K

all gauge pointers are just pressed on the shafts over time they can and do move to incorect positions pull off and move [by center hub] and line up to real readings [off scan tools readouts] or where you think they should be, but check to see if you got a real problem like low oil pressureor hi-temps first with a good shop gauge/thermomoter/VOM ect.
sure works on gas gauges that run out at 1/2 full and read way over the full line up, just move to real reading on full line when realy full [after many click off of pump to top off]

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Question wonder and be wierd

They all look good to me. Wish my oil pressure was that high with a warm engine.
Nice dash treatment BTW.

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Raydar

From the Department of Redundancy Department.

Thanks everybody for your suggestions.I'll check in to these. The oil pressre is high because I have a high output oil pump. When the engine is cold it will peg the needle if revved up high.

All look's good to me... well, almost the fuel gauge look's too full to me, mine never look's like that!!! lol all look's good!

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The tank was topped off.

quote Originally posted by avengador1: The tank was topped off.

adv.. I was being a smarta$$.. notice the lol after I said it.. all look's good to me!!! Steve

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No offense taken.