Question about 1999 Saturn SL

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When starts idle speed good, touch gas pedal and idle goes to 2500, click key off ans back on and goes right back to 700 rpm

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Howdoyourestorethenormalidletoa1999saturnsl1?

Posted on Aug 27, 2010

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Posted on Jan 02, 2017

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1 Answer

1991 ford f150 gas pedal not working


Sounds like the connection broke at the throttle at the intake. Take a look to see if the clip broke. don-ohio

Apr 14, 2017 | 1991 Ford F150

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I have this problem for quite a bit. The idling speed when engine started cold is between 700-800 rpm. As the engine gets hotted idling rpm increase to almost 1000rpm. If idling is adjusted back, the rpm...


There appears to be a thermal movement of choke mechanism that comes about once vehicle is warmed up. Check the chock connections, hot water pipe and linkages tight or clear.
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1995 Cherokee with 4.0 engine. Intermittently, it will run rough for a few minutes after starting, then run smoothly. Sometimes while driving in light traffic, slower speeds, it will seem to hold engine...


all that an not one RPM stated, making the meter useless.
numbers matter, tell them.
all that can be condensed to idle controls, dead hot.
you took it to a shop but was running great then.
so he guessed, and spent a fortune doing nothing.
why do that. ?
take it in broken, or have them drive it for a day to work.
find a real shop that can do that. and win.,
THE idle controls can fail many a way.
1: the control is bad. (ISC/IAC) they like to stick clean it.
2: vacuum leaks causing above.
3: gross engine misfiring (50 causes)
4: not scanning it. you didnt. so, work blind.

next time post actual RPM, when missing up.
and win, !!!!
the PCM not stuck in LIMP-in mode, will work big time hard
to prevent engines from stalling and to hold spec rpm
700? hot.
the ECU modulates the ISC to hold 700 rpm , HOT, in neutral or DRIVE, if you go P N, D and P, the rpm must hold at spec, 700
if not the ECU is not regulating RPM is it.
and not scanning it now, you may never lean why.
scan cars failing, not working right., and win.

lets say you said, just to show how important numbers are.
RPM is 400 or 500 engine shakes.
EGR stuck open( if it has one,)
or engine gross misfiring ever get a full tuneup this decade, even spark plugs. OMG no>?
injectors leaking or clogged

at the 10min no start.
does 5-10% throttle action (right foot) allow it to start now.
NO, try wide open throttle starts.
bingo, then its flooded
if it floods, post , why does my engine flood. and get other answers
like a tuneup.,

Mar 09, 2017 | 1995 Jeep Cherokee

1 Answer

Idle is high unless I tap the gas pedal


To me this sounds like the return spring on the carby has lost its strengh or your carburator needs a good clean as the throtle linkages could be dirty. I hope this helps.

Nov 02, 2009 | 1986 Chevrolet Corvette

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2004 nissan quest DTC P0507. Can't get IAVL to


My quest 2004 idle below 500, start up then off, have to start couple times when the engine is cold. when i pushed the gas pedal, it smells gas.

Oct 21, 2009 | 2004 Nissan Quest

1 Answer

2000 accord v6 engine idle goes up and down after start up


I am having the same issue after I changed my battery today. Upon doing some research it seems like there is some way of aiding the computer with proper idling. I haven't done it yet... plan on going to the dealership where I got the battery, but from my understanding you disconnect the negative line from the battery for a few mins, reconnect, and then apply gas at 3000 rpm for a few mins until the fan kicks on. AND this will help reset your car to proper idling. Good luck

Aug 29, 2009 | 2000 Honda Accord

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