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Old 06-26-2003, 11:48 PM   #1
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ok i got my cruise set at like 67 and the tach reads like 2700rpms. does this sound right?
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Old 06-26-2003, 11:49 PM   #2
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Originally Posted by LittleHoov
ok i got my cruise set at like 67 and the tach reads like 2700rpms. does this sound right?
Pretty much, sure. You have some suspicions...?
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Old 06-26-2003, 11:51 PM   #3
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I'm usually at 2000 rpm or a little above at 65mph. But that'* not in cruise, I don't know if that would make a difference anyway.
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Old 06-26-2003, 11:57 PM   #4
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well when we were test drivin it it was doin 70 and only turnin 2000 or a little over but i wasnt drivin so my gramps was probly just coasting.id say the cruise maybe has somethin to do with it.or maybe the car was just in a bad mood.who knows.and then i eased it on up to 3000 and it was doin 75...uphill.go figure
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Old 06-27-2003, 12:40 PM   #5
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Quote:
Originally Posted by LittleHoov
well when we were test drivin it it was doin 70 and only turnin 2000 or a little over but i wasnt drivin so my gramps was probly just coasting.id say the cruise maybe has somethin to do with it.or maybe the car was just in a bad mood.who knows.and then i eased it on up to 3000 and it was doin 75...uphill.go figure
Okay, maybe 2700 was high after all. I'll take a closer look at mine sometime.

Actually, if the transmission fails to go into torque convertor lockup (which it usually should have done once you stop accelerating at any cruising speed above 47 mph), you _would_ have a higher-than-normal engine speed for that road speed.

(This below is correct for the '93 models at least):

If you accelerate gently to a cruising speed of 50 mph, you should see and feel an apparent upshift at 47 mph, with rpms dropping at that point when the TCC solenoid engages and the torque convertor is bypassed, locking the engine to the drivetrain. If you can use your cruise Resume/Accelerate controls to set a cruise speed at 45 mph, then step upwards from 45 mph to 50 mph (use the little slide button on the turn-signal lever; each momentary press of the slide gets you precisely 1 mph increase) and no upshift occurs, then your TCC solenoid is either bad or disconnected. Suggest you try this test and see.
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Old 06-27-2003, 07:02 PM   #6
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well for one thing i wasnt in overdrive which could have had somethin to do with it i guess.ill try OD next time.if not ill try whatever jeep said
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Old 06-27-2003, 07:23 PM   #7
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Why weren't you in OD? You will get WAY better gas mileage whenever you drive over 50 MPH if you leave it in OD. By the way, My SSE turns about 2000 RPM at 70 MPH.
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Old 06-27-2003, 10:50 PM   #8
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Quote:
Originally Posted by LittleHoov
well for one thing i wasnt in overdrive which could have had somethin to do with it i guess.ill try OD next time.if not ill try whatever jeep said
There'* your answer.
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Old 06-28-2003, 01:18 AM   #9
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im not used to puttin stuff in Odim used to a 5 speed which i guess 5th is OD and a van where the mechanic told us not to put it in OD cause it was one of Fords crappy trannys its an 89 aerostar so it just didnt hit me to slap it in the OD.ill try and remember.im thinkin post-it note on the dash
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Old 06-28-2003, 01:57 AM   #10
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Definetly put it in OD, or you will have problems at higher speeds.
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