Car starts and runs at high idle for a few minutes until it comes down, though I live in tropics. Now when I step on the gas even mildly, the car seems to hiccup and then to speed up in a jerky way. If I step on the gas very slowly it seems to not have this problem?
You need to replace the coolant temperature sensor. It tells the computer that your car needs a high idle. As far as your running, you got some water displaced in your system. Change out the fuel filter, and pour a can of "Seafoam" in the tank. It will take a few miles, but that should fix your problem.
It can be issue
with IAC( idle air control valve) causing the problem.
There
are many other possibilities causing these idle issues. Engine idles rough.
There
are few help links with solutions to troubleshoot such idle issues.
I
suggest you refer the link below and follow
its troubleshooting details:------
Click
the link below:-----
-----------
http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html
------------
http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html
---------
http://repairhelpcenter.blogspot.com/2012/01/engine-stumbles-coming-off-idle-when.html
------------------
http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html
-----------
Cold start problem and vehicle shudder around 2500 to
3500 rpms
----------
http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html
-----------
http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html
--------
http://schematicsdiagram.blogspot.com/2011/12/gmc-idle-air-control-iac-valve.html
-------------
http://repairhelpcenter.blogspot.com/2011/10/1996-camry-intermittent-engine-failure.html
------------
http://repairhelpcenter.blogspot.com/2011/10/engine-quits-at-idle.html
-----------
http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html
---------
High
Idle Problem
http://repairhelpcenter.blogspot.com/2012/10/high-idle-problem.html
-------
http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html
---------
http://technoanswers.blogspot.in/2012/02/idle-flair-is-noticed-on-car-rough-idle.html
--------
http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html
-------
http://schematicsdiagram.blogspot.in/2012/03/vehicle-stumbling-at-idle-and-shows.html
----------
http://technoanswers.blogspot.in/2012/03/rough-idlestaling-and-erratic-shifting.html
-----------
http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html
---------
These
details will help.
Thanks.
It
can be low fuel pressure issue or clogged fuel pump. Or its engine related
issues,---------------
Check
the help link mentioned below to troubleshoot the problem: ------
Engine stalls when gas is given?
http://technoanswers.blogspot.in/2012/01/engine-stalls-when-gas-is-given.html
-------------
Car stalls when MAF sensor is connected?
http://technoanswers.blogspot.in/2012/01/car-stalls-when-maf-sensor-is-connected.html
------------
Car Engine Stalls While Driving?
http://schematicsdiagram.blogspot.com/2011/12/car-engine-stalls-while-driving.html
--------------
Car stalls and throws white smoke from exhaust?
http://repairhelpcenter.blogspot.com/2012/01/car-stalls-and-throws-white-smoke-from.html
-------------
Stalls And Dies At Stop Sign?
http://www.howtobyme.blogspot.com/2012/07/stalls-and-dies-at-stop-sign.html
------------
GMC Sonoma Stalls and idles low
http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html
------------
Nissan Pathfinder stalls and bucks on Acceleration?
http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html
-----------------
1992 Chevrolet stalls and shutdown?
http://schematicsdiagram.blogspot.in/2012/04/1992-chevrolet-stalls-and-shutdown.html
------------
Stumbling and stalling at idle after engine rebuild?
http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html
--------------
1990 mazda 323 stalls and quit running?
http://technoanswers.blogspot.in/2012/02/1990-mazda-323-stalls-and-quit-running.html
-------------
2000 Toyota
Camry: Idling and Stalling Problem?
http://whatisbyme.blogspot.in/2012/05/2000-toyota-camry-idling-and-stalling.html
---------
1995 Toyota
Corolla: Stalls, Sputters and Pops Through Intake Manifold?
http://whatisbyme.blogspot.in/2012/05/1995-toyota-corolla-stalls-sputters-and.html
----------------
1999 Toyota Camry: Erratic stalling and high engine RPM at
idle?
http://whatisbyme.blogspot.in/2012/05/1999-toyota-camry-erratic-stalling-and.html
--------------
Dodge Dakota stalls, stumbles at idle. Has low fuel flow and
runs hot?
http://schematicsdiagram.blogspot.in/2012/03/dodge-dakota-stallsstumbles-at-idlehas.html
--------------
1994 Toyota
4Runner: Stalls and Stops While Driving?
http://whatisbyme.blogspot.in/2012/05/1994-toyota-4runner-stalls-and-stops.html
---------------
1997 Toyota Camry: Erratic Idle and Intermittent engine
stalling?
http://technoanswers.blogspot.in/2012/04/1997-toyota-camry-erratic-idle-and.html
-------------
Ford Maverick: No Idle and Stalling issues?
http://schematicsdiagram.blogspot.in/2012/04/ford-maverick-no-idle-and-stalling.html
-------------
These
details will help.
Thanks.
http://repairhelpcenter.blogspot.com/2012/01/engine-stumbles-coming-off-idle-when.html
------------------
Erratic idle on car?
http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html
-----------
Cold start problem and vehicle shudder around 2500 to
3500 rpms
http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html
----------
Low idle when cold out side?
http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html
-----------
GMC Sonoma Stalls and idles low
http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html
--------
GMC Idle Air Control
(IAC) Valve Replacing?
http://schematicsdiagram.blogspot.com/2011/12/gmc-idle-air-control-iac-valve.html
-------------
1996 Camry
intermittent engine failure while idle?
http://repairhelpcenter.blogspot.com/2011/10/1996-camry-intermittent-engine-failure.html
------------
Engine quits at idle?
http://repairhelpcenter.blogspot.com/2011/10/engine-quits-at-idle.html
-----------
Car overheats and Air
blows hot at idle?
http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html
---------
High Idle Problem
http://repairhelpcenter.blogspot.com/2012/10/high-idle-problem.html
-------
While stop engine idles like cylinder
missing?
http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html
---------
Idle flair is noticed on car? Rough idle? car will not idle?
Erratic idle speed?
http://technoanswers.blogspot.in/2012/02/idle-flair-is-noticed-on-car-rough-idle.html
--------
High rpm in neutral? Inconsistant high RPM in neutral?
http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html
-------
Vehicle stumbling at idle and shows code 54?
http://schematicsdiagram.blogspot.in/2012/03/vehicle-stumbling-at-idle-and-shows.html
----------
Rough idle, staling and Erratic shifting?
http://technoanswers.blogspot.in/2012/03/rough-idlestaling-and-erratic-shifting.html
-----------While stop engine idles like cylinder
missing?
http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html
---------These details will help.Thanks.
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Would the fuel filter affect the car on the freeway...the problem I am having is only from a stop...once going on at 20-30 MPH or better there is no problem??? In addition, if you rev the car it sounds very good, and the jerkyness is not present in reverse? Transmission?
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