New Guy 1997 7.3 CCLB - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 5 (permalink) Old 08-29-2018, 04:11 AM Thread Starter
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New Guy 1997 7.3 CCLB

Any help is greatly appreciated. Bought a 1997 7.3 cclb srw. Replaced all fluids.

My zf5 transmission gauge on dash isn’t hardly registering. Is this normal? Or could the gauge be bad. What temp range is on stock gauge?

Also I’m getting lousy fuel mileage. 4.10 gears and roughly calculated 8mpg. 3.5” downpipe to 4” straight pipe. S&B brand new intake. All fluids changed. Any ideas???

TS6 chip a safe run on a stock injectors? I would assume I couldn’t turn it up past 50hp and actually see any gains.

I don’t tow. 4” lift on 33” tires. New tranny. Gauge recommendations?? Egt, boost, oil, tranny temp?

I know there are a lot of vendors on here and I’m just looking for some help. Appreciate it. If I posted in the wrong place I’m sorry. New to the nation.
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post #2 of 5 (permalink) Old 08-29-2018, 04:16 AM
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Re: New Guy 1997 7.3 CCLB

Theres no trans temp for a 5spd. There is the ect gauge, low pressure oil switch, batt volts, and fuel lvl.

Shoulda bought a Cummins.

1997 F250 7.3L XLT, 4x4, 5spd, 315K, TS chip, BD Turbo-Thruster II, Donaldson 6637 filter, 4" straight piped dual exit SOLD

1995 F350 CCLB 6.0L WIP

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post #3 of 5 (permalink) Old 08-29-2018, 04:33 AM Thread Starter
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SO I guess my ect gauge is bad... sending unit problem? Where is the gauge registering from ?
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post #4 of 5 (permalink) Old 09-03-2018, 06:48 PM
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Re: New Guy 1997 7.3 CCLB

Probably a defective temp sender.
The sender is on the front of the engine at the top of the water pump, next to the hot-hose outlet.

You can test the gauge as follows:

The sender is a variable resistor, so it sends a variable signal to the instrument cluster (gauge). The sender is grounded on one side (yellow/red wire) and sends the sig on the other (red/white) wire. Disconnect the wires from the sender, and momentarily short the two wires together, then turn ON the key. The gauge should jump upwards to full-scale. Don't leave the key ON with it shorted for any period of time, only long enough for the gauge to read.

If the gauge reads up to full-scale (or pegs out), the gauge is good, and the sender probably nfg. if the gauge DOESN'T read full scale, then you likely have a wiring or instrument cluster/gauge issue.

ON EDIT: The wire colors noted above are for my 2000 Superduty (from wiring diagram). Yours might be different colors. But the principal is the same: one side is ground, other side is signal to gauge.
HOWEVER: Are you sure your T-stat is good? Maybe the gauge is reading just fine, and your engine isn't getting up to temp...? After you test the gauge, maybe run the engine until hot, and confirm it's reaching proper operating temp.
Just a thought...

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post #5 of 5 (permalink) Old 09-04-2018, 05:59 PM
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Re: New Guy 1997 7.3 CCLB

Ts6ís are becoming outdated. They run pretty high egtís and a lot of tuners arenít reburning them anymore. Everyone is switching over to the php hydra set up. You can get a hydra on eBay for pretty cheap from a lot of different tuners. Also, if youíre part of the Facebook groups, look on there for hydras with custom tunes. Several guys on there are doing pretty good things, Dan kropinak, dusty hogate and so on. For gauges Iíd recommend looking into an edge cts2 monitor. More expensive than a pillar gauge set up, but you can monitor dang near everything on it.

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