2000 Jeep Cherokee

Tiny
ALIOZEIR
  • MEMBER
  • 2000 JEEP CHEROKEE
2000 Jeep Cherokee V8 Four Wheel Drive Automatic

I was driving slowly and I went into a small pump and after the car suddenly stop, the battery was on but the rpm went on 0, I switch it off and then I on again and the RPM was playing going down and up and then I switch it off again, after I tryied agian and its working properly, I am scared it could face this problem on a high way and cause an accident, other problem is when I swicht on the ac, sometimes a bas smell comes in, like burned oil?What could be?Thanks
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Thursday, May 6th, 2010 AT 4:53 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
When you say you went into a small "Pump" do you mean bump or puddle?
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Thursday, May 20th, 2010 AT 12:10 PM
Tiny
ALIOZEIR
  • MEMBER
Bumb or when I stop the car on the traffic light its switching off, I think maybe could be the ISC that could be very dirty and need replacement, please advice, thanks a lot
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Friday, May 21st, 2010 AT 12:14 AM
Tiny
JACOBANDNICKOLAS
  • EXPERT
The Idle Air Control valve (IAC) can cause the engine to die as you described. However, when they go bad, usually the set the check engine light. Has that happened?
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Friday, May 21st, 2010 AT 11:08 PM
Tiny
ALIOZEIR
  • MEMBER
No engine light came on on the display. But I have this error code 1492 appearing (can be the clips of the battery the cause as they are too old)?
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Saturday, May 22nd, 2010 AT 5:40 AM
Tiny
JACOBANDNICKOLAS
  • EXPERT
I did some research for you and found what the code is. I don't know if you want to read it, but here is cause with diagnostics. NOTE: I want you to pay attention to the last sentence.

P1492-AMBIENT/BATTERY TEMP SENSOR VOLTAGE TOO HIGH
When Monitored: With the ignition key on.
Set Condition: The PCM senses the voltage from the Battery Temperature Sensor above
4.9 volts for 3 seconds.
POSSIBLE CAUSES
BATTERY TEMP SENSOR VOLTAGE ABOVE 4.8 VOLTS
BATTERY TEMPERATURE SENSOR
(K118) BATTERY TEMP SIGNAL CIRCUIT SHORTED TO VOLTAGE
(K118) BATTERY TEMP SIGNAL CIRCUIT OPEN
(K4) SENSOR GROUND CIRCUIT OPEN
PCM
TEST ACTION APPLICABILITY
1 Ignition on, engine not running.
Record all DTCs and the related Freeze Frame data.
Check for any related TSBs.
With the DRBIIIt, monitor the Battery Temperature Sensor voltage.
Is the voltage above 4.8 volts?
All
Yes ! Go To 2
No ! Refer to the INTERMITTENT CONDITION Symptom (Diagnostic
Procedure).
Perform POWERTRAIN VERIFICATION TEST VER - 3.
2 Turn the ignition off.
Disconnect the Battery Temp Sensor harness connector.
Ignition on, engine not running.
With the DRBIIIt, read the Ambient/Batt Tmp Vlt value.
Connect a jumper wire between the (K118) Battery Temp Signal circuit and the (K4)
Sensor ground circuit at the Sensor harness connector.
Did the Battery Temp Sensor voltage change from greater than 4.5 volts to less than
1.0 volt?
All
Yes ! Replace the Battery Temperature Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
No ! Go To 3
NOTE: Remove the jumper wire before continuing.

TEST ACTION APPLICABILITY
3 Turn the ignition off.
Disconnect the PCM harness connectors.
Ignition on, engine not running.
Measure the voltage on the (K118) Battery Temp Signal circuit at the Sensor harness
connector.
Is the voltage above 5.2 volts?
All
Yes ! Repair the short to voltage in the (K118) Battery Temp Signal
circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
No ! Go To 4
4 Turn the ignition off.
Measure the resistance of the (K118) Battery Temp Signal circuit from the Battery
Temp Sensor harness connector to the PCM harness connector.
Is the resistance below 5.0 ohms?
All
Yes ! Go To 5
No ! Repair the open in the (K118) Battery Temp Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
5 Measure the resistance in the (K4) Sensor ground circuit from the PCM harness
connector to the Sensor connector.
Is the resistance below 5.0 ohms?
All
Yes ! Go To 6
No ! Repair the open in the (K4) Sensor ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
6 NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay
particular attention to all Power and Ground circuits.
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Powertrain Control Module per Service
Information.

I would remove the battery and check that sensor wiring underneath it. Chances are a wire came off or something foolish.

Let me know what you find or if you have other questions.

Joe
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Saturday, May 22nd, 2010 AT 10:11 PM

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