What kind of transmission problem does GMC Safari have?
What kind of transmission problem does GMC Safari have?
I have a 1999 GMC Safari with only 3300 miles (not a typo). After coming home last evening from a 1-1/2 hour drive, after a stop sign, the transmission had an abrupt shift from 1-2 gear. It happened all the way home from off the freeway to driveway (approx 4 miles).
When was the last time I serviced my GMC Safari?
Driven an estimated 8,322 miles/year. Last serviced at 166,703 miles in College Park, MD on 07/27/19 • Vehicle serviced. Accident reported. 1st owner purchased on 02/10/01 and owned in NY until 03/23/05 • 2nd owner purchased on 06/02/05 and owned in NY until 03/18/10 • 3rd owner purchased on 04/06/10 and owned in IL until .
How many miles does a GMC Safari have?
Mileage: 116,349 miles Body Type: Minivan Color: White Engine: 6 Cyl 4.3 L No accident or damage reported to CARFAX. 1st owner purchased on 08/12/05 and owned in PA until 03/01/12 • 2nd owner purchased on 03/01/12 and owned in PA until 08/06/14 • 3rd owner purchased on 08/06/14 and owned in PA until .
I have a 1999 GMC Safari with only 3300 miles (not a typo). After coming home last evening from a 1-1/2 hour drive, after a stop sign, the transmission had an abrupt shift from 1-2 gear. It happened all the way home from off the freeway to driveway (approx 4 miles).
When did GMC Safari switch from 1st to 2nd gear?
On August 1, 1997 I bought the above vehicle from you through Bob Stall Chevrolet, La Mesa, California. On September 6, 2000, it developed the serious defect of abruptly shifting from 1st to 2nd gear after approximately 30 minutes or 17 to 20 miles of driving.
How to check battery voltage in GMC Safari?
Remove the large 17 pin connector from the instrument cluster. Using a digital Volt/Ohm meter, measure the voltage from pin A13 to gnd with the ignition in run. The meter should read battery voltage. If the readings are less than battery voltage, or zero, repair the pink/white wire from the ignition switch.
Where is the underhood electrical center located on a GMC Safari?
The underhood electrical center is located toward the rear of the engine compartment on the driver’s side. Oxygen Sensors, Camshaft Position Sensor, Mass Air Flow Sensor, Evaporative Emission Canister Vent Solenoid
What does it mean when your transmission is not shifting?
Some customers may comment that at times the transmission seems to slip, or that there is a loud roar from the engine with slow acceleration. This condition is most noticeable after the vehicle has sat idle for 12 or more hours, or on hot days when the A/C is on and the vehicle moves slowly with traffic.
What happens when one of the shift solenoids fails?
When any one of these two shift solenoids fail, the PCM commands the transmission to operate in LIMP IN MODE and this means that the transmission will run in 2nd gear only (no 1st and no 3rd or 4th).
Some customers may comment that at times the transmission seems to slip, or that there is a loud roar from the engine with slow acceleration. This condition is most noticeable after the vehicle has sat idle for 12 or more hours, or on hot days when the A/C is on and the vehicle moves slowly with traffic.
On August 1, 1997 I bought the above vehicle from you through Bob Stall Chevrolet, La Mesa, California. On September 6, 2000, it developed the serious defect of abruptly shifting from 1st to 2nd gear after approximately 30 minutes or 17 to 20 miles of driving.
How to test shift solenoids on GM 4.3L?
In this article, I’ll show you how to test the transmission shift solenoids (specifically 1-2 solenoid and 2-3 solenoid) on your GM 4.3L, 5.0L, 5.7L pick up, van, SUV. You’ll be surprised just how easy it is to diagnose these shift solenoids when they have failed.