Top 20 1997 Pontiac Sunfire Questions & Answers

https://www.autozone.com/repairguides/GM-Cavalier-Sunfire-1995-2000-Repair-Guide/ROUTINE-MAINTENANCE-AND-TUNE-UP/PCV-Valve/_/P-0900c1528003c9f7 . Hope it helps.

Did you check the actual voltage reading to fuel injectors? I wondered about a voltage drop? Your fuel pump relay supplies voltage to both fuel pump and fuel injectors. In the diagram, the gray wire is voltage and the other color is ground controlled by computer. Did you check fuel injectors, individually?I'd want to use a gage and check proper fuel pressure. Fuel--spark--compression--timing. There are other ways to get fuel in the engine besides fuel injectors, Just to see if engine will hit? There are safety issues, safety is your responsibility.

No fuel pressure , test the fuel system with a fuel pressure gauge . Hook up a scanner an check engine sensor data parameters to the PCM . 048 Engine Hard to Start or No Start Scan Data for Starting Problems If you don't know this you mite want to take it to a qualified repair shop.

Check contacts in drivers seat belt before anything else.

The ground checks out? Which ground did you test?

Most likely the shifter is defective.

It probably broke down inside. All you can do is take it apart and see.

Ignition switch . not wiring harness . I would try a different mechanic .

Change the fan relay or if are those car like for explorer that is using sensor you must replace the sensor as well

When was the last time you had the timing belt replaced. Just occasionally, worn timing belts can jump a tooth, resulting in retarded ignition and/or retarded valve timing.

Symptoms point to the cluster microprocessor. How was it proven? See diagram below.

No vacuum modulator on this transmission. Even if it did, a bad vacuum modulator only works during the 1-2 shift. It would not affect ability to drive from 0-mph

yes bad leads will be one of the faults run the motor in the dark raise the bonnet look for sparkle trails on the leads coil pack could be faulty compression test will tell if it is a leaky valve back fire can be running lean or timing

have the fault codes read as it is not a problem from the brake repair

Take a volts reading off battery with multi-meter if low take battery off and re-charge or try new battery.

Yea, take it to a qualified repair shop ! Could be anything , and with out doing some test couldn't make a suggestions . Headlights/Daytime Running Lights (DRL) Circuit Description The instrument cluster controls the headlamp systems that include daytime running lamps (DRL). The system allows the headlamps to operate at a reduced intensity when all of the following conditions apply: • The engine is running. • The transaxle is not in the PARK position. • The normal headlamps are not on. The instrument cluster turns the DRL system on by grounding CKT 592, thereby energizing the DRL relay. This action allows a reduced voltage of 6 volts to flow across the headlamps. If the vehicle has the optional fog lamps, the fog lamp relay will also be energized. The park lamps will turn on and the fog lamps will operate normally. When the headlamp switch is turned to the ON position, the instrument cluster allows normal headlamp operation. The instrument cluster also has an input from the park brake. If the park brake is in the ON position, the DRL will remain disabled until the park brake is placed in the OFF position. On vehicles with an automatic transaxle, the instrument cluster will disable the DRL until the transaxle has been taken out of the PARK position.

Take the serial number of the car to a GM dealer and ask them to cut a key for you. You may need to provide proof of ownership.

There is no adjustment , Install the rocker arm and the ball. Apply Dri-Slide Moly lubricant GM P/N 1052948 or equivalent to the threads of the stud. Install the rocker arm nuts. Tighten Tighten the nuts to 30 N·m (22 lb ft).

top hose should be hot, all water from engine goes through upper hose, then radiator to cool and out lower hose.

Are the fan/s coming on when reaching operating temperature ?