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#1
09-18-2005, 11:22 AM
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97 Saturn idoling eratically and loss of power
I have been trying to fix my sister's car. At 3000 rpm's it will idol fine, but put it under more load at or over 4000 rpm's the idol will waffle and loose power. Any suggestions?
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#2
09-18-2005, 11:33 AM
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First, lower your idle speed, if it is really 3000 at idle
__________________
Ford, GM, Mopar, Import - Treat em all the same. Some are good, some are not as good. A few should not exist. 07 Acura TL, 04 BMW 745Li - (nice ride), 01 Audi TT 225 Hp Quattro 6 speed (street legal go cart with a/c), 03 Linc Navigator, 02 Ford Exploder - still need to put that trans in..., 00 Honda Accord, 67 Cutlass, 65 Mustang, 86 Wellcraft Nova, 03 Honda Foreman 450ES, 2000 BMW K1200LT (2 wheels...), Cub Cadet
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#3
09-18-2005, 12:06 PM
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3k is not an idle speed. check for vacuum leaks.
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'94 chev suburban '99 chev k2500 if you feel that you must burn my flag please do me a favor and wrap yourself in it first when you drive a ford you need a whole set of good wrenches-lol-  jack bauer for president
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#4
09-18-2005, 03:59 PM
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The idle shouldn't be no more then 1000 rpms and with the air conditioner running it will idle around 750 rpms, 3000 rpms is highway speed. And if the idle speeds up and slows down it could be a few things, Could be a ignition (like rust coated coil plug ends), egr valve, vaccuum leak. But on a 97 you should get a engine light for one of these and if you do bring it to a auto parts store and have them check the code. It's so much easier then guessing and replacing stuff you don't need too. Usually auto parts stores will test for free.
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Real trucks don't have spark plugs! Last edited by justen; 09-18-2005 at 04:04 PM.
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#5
09-18-2005, 05:07 PM
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Quote:
You mean he doesn't have an aftermarket large overlapped cam
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#6
09-18-2005, 05:58 PM
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Quote:
did i miss that part of the post-lol-
__________________
'94 chev suburban '99 chev k2500 if you feel that you must burn my flag please do me a favor and wrap yourself in it first when you drive a ford you need a whole set of good wrenches-lol- jack bauer for president
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#7
09-18-2005, 06:54 PM
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"UPDATE" Sorry guys, the idol is at 1000 rpm's. Though it could be tuned alittle better. Maybe about 800. I've replaced the plugs and checked the gap. Took the egr valve off and cleaned the plunger. Gonna check the ignition tomorrow and look at the wires. No engine check lights have come on, so no codes.
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#8
09-18-2005, 08:11 PM
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It could still have a code, it takes 2 of the same faults in a given time period to set the MIL light. You may still have 1 or more (different faults) that have not triggered the MIL light yet.
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#9
09-18-2005, 09:09 PM
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like dougbfresh said there could be pending or even mature codes that haven't made the MIL go off. Wouldn't hurt to check that out.
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Real trucks don't have spark plugs! Last edited by justen; 09-19-2005 at 03:24 AM.
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