Question about 1989 Chrysler LeBaron

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How do you adjust idle speed on 2.5 litre chrysler lebaron

Engine idle is at 250 rpm after start up

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You cant it is computer controlled ais stepper motor on the the throttle body

Posted on Dec 03, 2008

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Idle adjustment at carburator end


most older cars had 2 adjustments , a air screw for enrichment and throttle screw for engine idle speed, later models did away with the enrichment screw, to adjust set idle screw to 600 rpm, adjust air mixture screw to fastest rpm , reset idle screw to preferred idle speed.

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1 Answer

Set idling via screws


Most older cars had 2 adjustments , a air screw for enrichment and throttle screw for engine idle speed, later models did away with the enrichment screw, to adjust set idle screw to 600 rpm, adjust air mixture screw to fastest rpm , reset idle screw to preferred idle speed.

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1 Answer

Toyota corolla hatch 2002 idle at 2000 rpm when


All the above is normal , except 2000rpm is a little high at idle . can be adjusted down to 1500rpm. the computer adjusts the engine speed . in drive the transmission loads up the engine idle drops to 1000rpm . in park engine unloaded rpm increase all normal.

Sep 17, 2014 | Cars & Trucks

1 Answer

What is the idle speed 3.0 V6 chrysler 1994. I need to set the timing and nowhere does it mention the idle speed


Well the idle speed is computer controlled, so there's no adjustment.
Normal idle is around 800 rpm.

Mar 08, 2014 | 1994 Chrysler LeBaron

1 Answer

Airscrew


Before you could adjust the mixture, make sure that the spark plug gaps, ignition timing and valve clearance are all OK.
- Start the engine and bring it at operating temperature.
- Adjust the throttle stop screw to bring it at the stable rpm.
- Turn in the idle mixture screw while observing the engine speed till the engine starts to stall. At this point turn out the idle mixture screw and keep on opening slowly till the engine acquire the most stable rpm. Finally adjust the throttle stop screw to obtain the desired idle speed.

Jul 12, 2013 | 1990 Toyota Land Cruiser

1 Answer

Carburetor idle mixture adjustment for lean burn chrysler engines


On a carbureted engine(the days of old) I had a method of my own
which always seemed to do really well.
Warm up the engine to operating temperature and make sure there is no
operation of the automatic choke.This should mean that the choke flap in the top of carb is standing vertically offering no resistance to airflow.
Hook up a tachometer if the car has'nt got one.
Note the idle speed in PARK.
Turn the fuel/air adjusting screw underneath carb's right or left sideI(NOT the idle speed set screw) IN and note the rpm as you do.If it raises a little,you are getting close.
Go ahead and turn that screw in all the way and lightly seat it(count the turns in from the highest idle reading),then back it out to the highest reading.NOW turn it in slowly until you see the RPM drop slightly.
Now back it out a little so you are at peak RPM again.
REPEAT this with the other side's fuel/air screw.
After you have gained this higher RPM (maybe), then set the idle speed control screw to desired RPM, and be sure to get in the car and while holding the brake,put the car in DRIVE to make sure the idle doesn't drop too low. don-ohio (:^)

Nov 17, 2011 | 1986 Chrysler Fifth Avenue

3 Answers

Idle at 250 rpm


Idle Speed Control (ISC) Motor OPERATION Eagle Throttle Body Fuel Injection (TBI) System NOTE: The Eagle TBI system is used only on 2.5L Premier engines. The Idle Speed Control (ISC) motor is mounted to the throttle body and controlled by the PCM. The throttle lever rests against the initial adjustment screw of the actuator (plunger). The idle speed is not adjustable. The initial adjustment screw is only used to establish the initial positioning of the actuator when the ISC motor has been replaced. The actuator extends or retracts to control engine idle speed and to set throttle stop angle during deceleration. Based on inputs from the various engine control system sensors and switches to the PCM supplies current to the ISC motor to adjust the actuator position for the particular operating conditions.
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Aug 05, 2010 | 1995 Dodge Spirit

1 Answer

1996 ford bronco 5.8 litre, auto, engine idle has


Do you have a check engine light on? First thing I would do is unplug the IAC motor when the engine is warm. If the idle speed doesn't change you have a vacuum leak or a bad IAC motor. If the idle speed goes down you might have a bad TPS or IAC

May 31, 2010 | 1996 Ford Bronco

1 Answer

How do i adjust a very high idle on my chrysler lebaron 1988?


Shoot it with a shot gun and then put it in drive while at idle rpm then should be fine you may have to kick the tire and bend the antenna a little bit to get the right rpm back

Sep 18, 2009 | 1988 Chrysler LeBaron

1 Answer

2000 v6 5 spd nissan xterra idles high when in gear and rolling .


From the service manual:

Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment
NGEC0549
PREPARATION
NGEC0549S01
1) Make sure that the following parts are in good order.
I Battery
I Ignition system
I Engine oil and coolant levels
I Fuses
I ECM harness connector
I Vacuum hoses
I Air intake system
(Oil filler cap, oil level gauge, etc.)
I Fuel pressure
I Engine compression
I EGR valve operation (If so equipped)
I Throttle valve
I Evaporative emission system
2) On air conditioner equipped models, checks should be carried out while the air conditioner is OFF.
3) On automatic transmission equipped models, when checking idle rpm, ignition timing and mixture ratio,
checks should be carried out while shift lever is in “N” position.
4) When measuring “CO” percentage, insert probe more than 40 cm (15.7 in) into tail pipe.
5) Turn off headlamps, heater blower, rear defogger.
6) Keep front wheels pointed straight ahead.
7) Make the check after the cooling fan has stopped.

SEF976U
3. Open engine hood and run engine at about 2,000 rpm for about 2 minutes under no-load.
SEF977U
4. Perform diagnostic test mode II (Self-diagnostic results). Refer to EC-644.
SEF217U
OK or NG
OK ' GO TO 2.
NG ' 1. Repair or replace components as necessary.
2. GO TO 2.
BASIC SERVICE PROCEDURE VG33E
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont’d)
EC-616
2 CHECK IGNITION TIMING
1. Run engine at about 2,000 rpm for about 2 minutes under no-load.
2. Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed.
SEF978U
3. Turn off engine and disconnect throttle position sensor harness connector.
SEF975R
4. Start and rev engine (2,000 - 3,000 rpm) two or three times under no-load, then run at idle speed.
5. Check ignition timing with a timing light.
SEF371S
15°±2° BTDC (in “P” or “N” position)
OK or NG
OK ' GO TO 4.
NG ' GO TO 3.
GI
MA
EM
LC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
BASIC SERVICE PROCEDURE VG33E
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont’d)
EC-617
3 ADJUST IGNITION TIMING
1. Adjust ignition timing by turning distributor after loosening securing bolts.
2. Turn off engine and connect throttle position sensor harness connector to throttle position sensor.
SEF972R
' GO TO 2.
4 CHECK BASE IDLE SPEED
With CONSULT-II
1. Read idle speed in “DATA MONITOR” mode with CONSULT-II.
PEF356V
700±50 rpm (in “P” or “N” position)
Without CONSULT-II
1. Check idle speed.
700±50 rpm (in “P” or “N” position)
OK or NG
OK ' GO TO 6.
NG ' GO TO 5.

Mar 25, 2009 | 2000 Nissan Xterra

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