20 Most Recent 2000 Saturn LW Questions & Answers

I would first change the fuel filter.

b0936 - When engine coolant is at the proper level, the low coolant switch is closed. When in this condition, battery voltage is applied to the low coolant 1478 input of the body control module (BCM). When coolant is below the proper level, the coolant switch opens. Because no voltage is applied to circuit 1478, the BCM responds by sending a serial data message to the instrument panel cluster to turn On the low coolant light. The BCM has an internal timer, which will not turn On the low coolant telltale unless the coolant level is low for greater than 30 seconds. The timer avoids coolant "sloshing" falsely turning On the light. B0936 Coolant level sensor circuit malfunction . Check for poor connection at BCM. Inspect harness connector for backed out terminals, improper terminal mating, broken connector locks, improperly formed or damaged terminals and poor terminal to wire connection (terminal crimped over wire insulation and not conductors).

?€¢ Inspect wiring harness for damage. Check for broken or chafed insulation.

?€¢ Check for poor connection at the low coolant switch.

?€¢ If fault is suspected to be intermittent, wiggling harness wiring may help in locating fault.

B

The blower motor resistor is located in the passenger front footwell. It is in the HVAC case very close the bulkhead. It has an elongated oval connector with 4 or 5 wires going to it. The resistor itself resembles a circuit board, not the typical blower resistor.

first try resetting the code , are there any symptoms reference rough idle, power etc if so have the ignition system checked

its located on tranny look twards rear of tranny

No not normal. Cap should only be removed. try holding the body and remove Cap to access filter.

check the battery and clean the terminals

The repair manuals are copyrighted by GM Corp and not free to share online (just like music). You can possibly find a used manual on eBay motors or you can download one for a modest fee here: www.alldatadiy.com

i'll just put some things out there , loose or wiring poblems in starter circuit,ignition switch , starter faulty,battery ?? if auto trans nutral safety ,if standard netural safety on clutch pedal.?just trying to help good luck hope something works.

diagnostic test should give you a clue to what is happeningban news working on my wifes car let the garage sort it be cause every time it breaks its your fault becase you repaired it last lol you know how they are lol

Hi there:Sound like a electrical problem there...DTC P1779 - Engine Torque Delivered to TCM SignalEngine torque signal below lower limit delivered to TCM. I've read these occur when there is a communication problem between ECM and TCM (Transmission Control Module).DTC P1791 - Transmission Control Module LoopThe P1779 and P1791 codes set as a result of the other DTC (P0128). When the ECM sets certain trouble codes, these codes will set in the TCM (Transmission Control Module). The TCM will also increase tranmission pressures, which results in the harsh shifting.DTC P0123 - Throttle/Pedal Position Sensor/Switch "A" Circuit HighTP sensor signal circuit is shorted to sensor ground. TP sensor signal circuit is open (except 1996-1998 models). TP sensor VREF circuit is open between sensor and PCM. TP sensor is damaged or it failed (it may be shorted).DTC P0222 - Throttle/Pedal Position Sensor/Switch "B" Circuit LowThe Throttle control module contains two throttle position (TP) sensors with a common 5 volt supply, a common ground, and two independent signal circuits that vary resistance according to changes in throttle plate position. The ECM measures the signal voltage from each TP sensor, which is a reduced value of the ECM 5 volt reference. As the throttle plate opens from 0% throttle to wide open throttle, the voltage on the TP sensor 1 signal increases from 0.6 (+/-0.2) volts to 4.3 (+/-0.2) volts, while the voltage on the TP sensor 2 signal decreases from 4.4 (+/-0.2) volts to 0.76 (+/-0.2) volts. If both P0122 and P0222 are set, circuit 486 may be either open or shorted to ground.Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.Thank you for using FixYa, have a nice day.

haynes manual#87020

Have to get under the car & look it over

Hi, all you need is a oil drip pan, 17mm and 32mm wrenches, cleaning cloths and appropriate oil and oil filter. Slide under your Saturn LW 3.0 and start changing the oil.