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| Cavalier Problem Diagnosis Got a problem you can't fix? We can help. |
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#1
09-03-2007, 08:36 PM
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89 Z24 rpm too high @60MPH
Hi guys, I am just wondering if anyone had same problem like I am having now with my z24 with a 3 speed auto. My rpm is too high (3200 rpm) when going at a speed of 60mph or 100 kph. My tranny shifts good but the rpm is too high. Could it be the TCC solenoid or something else? But my car doesn't stall from high to low speed. Gas mileage is bad due to this problem. Need Help. Thank you.
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#2
09-03-2007, 11:04 PM
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Re: 89 Z24 rpm too high @60MPH
3200rpm for 60mph isnt too high...
Depends on if you are driving flat or up hill... i noticed that my car is about 2200 rpm when going 60 if i let go the gas, and if i speed up to 60 from 55mph, it is at 3000 rpm... Last edited by Lefix; 09-04-2007 at 03:33 AM. |
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#3
09-04-2007, 12:10 AM
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Re: 89 Z24 rpm too high @60MPH
most companies gear automatic transmissions to be at 2500 rpm's or lower at highway speeds (65 according to them). its what mine runs at and any other car i have been in other than manuals, which vary, and trucks, which run WAY lower. my roomies ram runs at 1900 at 70. it does seem a lil high, but the only thing that i could think of that would cause the problem would be the overdrive not kicking in.
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#4
09-04-2007, 10:28 PM
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Re: 89 Z24 rpm too high @60MPH
So what could be the problem? I was driving on the flat highway. Could it be my TCC pressure switch or the solenoid or both? I need help real bad. I know 3000 RPM on the steady speed of 60MPH is a bit too high. Sucks gas like crazy.
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#5
09-13-2007, 07:24 PM
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Re: 89 Z24 rpm too high @60MPH
Quote:
mine befor i sarted rebuilding it sat for about 4 years and when I first started running it, it idled way to high but I let it idle for a bit and it dropped down the idle rpm and all that is computer controlled and sometimes needs to be tuned up |
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#6
01-25-2008, 10:26 PM
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Re: 89 Z24 rpm too high @60MPH
Could be a clogged filter in the tranny...... Could also be an unplugged TCC... at the bellhousing area, under the air filter box -- (be careful with this.... They are usually unplugged because they are sticking.... which can also be a sign of a bad ECM..... went through this with my 93 Beretta)
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========================================= Don't Worry What Others Think - They Don't Do It That Often! James Collier < [email protected] > 1992 Chevrolet Cavalier Z24 Convertible (3.1, 5-sp) *** FOR SALE -- SEE CAVALIER CLASSIFIEDS ON AUTOMOTIVE FORUMS.COM*** 1993 Chevrolet Beretta (3.1, 3-sp auto) 1995 Mercury Marquis (Taxicab, i.e., breadwinner) ========================================= |
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#7
01-26-2008, 12:21 AM
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Re: 89 Z24 rpm too high @60MPH
Instead of bringing up an older, outdated thread why don't you start a new one with your info? Closed.
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Thought for the Day… Alcohol does not make you fat - It makes you lean... against tables, chairs, floors, walls and ugly people.  If a prostitute here in America loses her job to a prostitute in India , is that considered "outwhoring"??-Jay Leno |
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