 '98 GT RPM's limited, wont rev past 5,000rpm's |
 Jan 15, 2009 - 11:41 AM
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 Enthusiast  Joined Jun 9, '06 From Vero Beach Fl. Currently Offline Reputation: 15 (100%)  |
I have a '98 GT with 130,000 miles on it. It is properly tuned and runs great . I average about 30 miles per gallon. The engine runs smooth from idle all the way up to 5,000RPM's. At the point when it hits 5k rpm's, it wont rev any higher in any gear. It just flattens out at 5k. Other then that, it runs strong with no other issues. Can anyonr tell me what the problem is?
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Jan 15, 2009 - 7:13 PM
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 Enthusiast Joined Feb 11, '08 From Auckland, New Zealand Currently Offline Reputation: 0 (0%) |
By nature of your FE engine, 5k is the plateau of your powerband... If you're having fueling issues (either lean or rich) then 5k would be about right for it to stutter... Do you know how to diagnose a lean/rich condition?
-------------------- Mike W
1996 Toyota Celica ST205 GT-FOUR GT2860RS turbine, TiAL mvr44, JE 86.5φ piston, Clutchmasters FX400, APEX P-FC 269awhp / 273ft-lbs |
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Jan 16, 2009 - 11:23 AM
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Enthusiast Joined Jun 9, '06 From Vero Beach Fl. Currently Offline Reputation: 15 (100%) |
QUOTE (delusionz @ Jan 15, 2009 - 8:13 PM)  By nature of your FE engine, 5k is the plateau of your powerband... If you're having fueling issues (either lean or rich) then 5k would be about right for it to stutter... Do you know how to diagnose a lean/rich condition? Between my wife and I, we have 3 6GC's. My wifes '94 GT automatic revs to red line before shifting in all gears. My '94 GT manual will rev to and beyond red line before a shift with no problem. Our '98 is the only one with the problem. -------------------- |
Posts in this topic
lingham '98 GT RPM's limited Jan 15, 2009 - 11:41 AM
stephen_lee does it feel like the engine cuts off at that RPM,... Jan 15, 2009 - 3:47 PM
lingham QUOTE (stephen_lee @ Jan 15, 2009 - 4... Jan 15, 2009 - 6:43 PM terbear4god4life i don't believe that iv got mine up past 5 Jan 16, 2009 - 11:10 AM 99GT Why would you need to go over 4k? I don't eve... Jan 16, 2009 - 12:17 PM lingham QUOTE (99GT @ Jan 16, 2009 - 1:17 PM... Jan 16, 2009 - 6:02 PM Fastbird My money says you're losing fuel pressure. I... Jan 16, 2009 - 12:46 PM mikew04 I would replace the fuel filter and see what that ... Jan 17, 2009 - 1:21 PM Jeunesse your wife's auto GT revs to red line before sh... Jan 17, 2009 - 1:48 PM |
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