GMC Truck›Sonoma 2WD›1997›Overview/gmc-truck/sonoma-2wd/1997/base/

1997 GMC Truck Sonoma 2WD

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1997 Sonoma 2WD.

The 1997 GMC Truck Sonoma 2WD takes 4.5 qt of 5W-30 engine oil.

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity4.5 qtOEM · verified

Engine oil type5W-30 APIOEM · verified

Lug nut torque95 ft-lbsOEM · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 75 · 525 CCA battery, OE oil filter 12731175. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 75 · 525 CCAOEM · verified

Tire sizeP205-75R15OEM · verified

Wheel / rim7-JJ inOEM · verified

OE service part numbers OEM · verified

Engine oil filter	12731175 alt 19210286
Engine air filter	25170512 alt 19259086
Fuel filter	25168594
Spark plug	19301812 alt 12681665
Front wiper blades	15757007 alt 15757008
Serpentine belt	12550110 alt 88986826
Thermostat	24577299 alt 12632948

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 4.5 qt of 5W-30 API engine oil, 80W-90 · GL-5 in the differential. Torque lug nuts to 95 ft-lbs, the oil drain plug to 19.0 ft-lbs. The firing order is 1-6-5-4-3-2. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Differential Gear Oil	80W-90 · GL-5
Differential Gear Oil Capacity	3.6 qt
Engine Oil	5W-30 · API
Engine Oil Capacity	4.5 qt
Engine Oil	5W-30 · API
Engine Oil Capacity	5 qt

Engine torques

Crankshaft Pulley and/or Damper Bolts	77 ft-lbs
Crankshaft Pulley and/or Damper Bolts	74 ft-lbs
Cylinder Head Steps	Apply sealant GM P/N 12346004
Intake Manifold to Engine Bolts	17 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	10 ft-lbs
Intake Manifold to Engine Bolts	17.0 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	10.0 ft-lbs
Engine Oil Pan Drain Plug	19.0 ft-lbs

Chassis torques

Leaf Spring to Axle (U-bolts)	89.0 ft-lbs
Leaf Spring to Chassis Bracket	89.0 ft-lbs
Leaf Spring to Rear Shackle	89.0 ft-lbs
Leaf Spring Rear Shackle to Chassis Bracket	89.0 ft-lbs
Lug Nuts	95 ft-lbs
Front Wheel Hub	103 ft-lbs

Ignition

Cylinder Firing Order	1-6-5-4-3-2
Cylinder Firing Order	1-3-4-2
Cylinder Firing Order	1-6-5-4-3-2
Spark Plug Manufacturer	AC Delco
Spark Plug Torque	14 ft-lbs
Spark Plug Manufacturer	AC Delco
Spark Plug Gap	0.045 in
Spark Plug Torque	15 ft-lbs

Battery & A/C

Refrigerant	R134a
Refrigerant Capacity	2.00 lbs
Oil Group	PAG
Oil Type	150
Oil Capacity	2.2 L
Refrigerant	R134a
Refrigerant Capacity	1.75-2.00 lbs
Oil Group	PAG

Service checks

Pressure Test	20 psi
Radiator Cap Pressure Relief	15 psi
Thermostat Opening Temperature	188-206 °F
Pressure Test	20 psi
Radiator Cap Pressure Relief	15 psi
Thermostat Opening Temperature	188-206 °F
Pressure Test	15 psi
Radiator Cap Pressure Relief	15 psi

Brakes

Brake Application	WITH FOUR WHEEL DISC / WITH STANDARD
Torque to Knuckle	77 ft-lbs / 52 ft-lbs / 38 ft-lbs
Minimum Pad Thickness	Front: 0.030; Rear: 0.030 specification
Brake Application	WITH FOUR WHEEL DISC / WITH STANDARD
Rotor Max Parallel Variation	0.0003 in / 0.0005 in
Rotor Runout Limit	0.003 in / 0.004 in
Rotor Nominal Thickness From	1.14 in / 0.787 in / 1.03 in
Rotor Nominal Thickness To	1.14 in / 0.787 in / 1.03 in

Multi-step torque procedures OEM · verified

Cylinder Head — tightening sequence 2 stages

1	short bolts	43 ft. lbs
2	turn 90

Cylinder Head — tightening sequence 4 stages

1	all bolts	22 ft. lbs
2	long bolts	75 degrees
3	medium bolts	65 degrees
4	55

Cylinder Head — tightening sequence 4 stages

1	all bolts	22 ft. lbs
2	long bolts	75 degrees
3	medium bolts	65 degrees
4	55

Cylinder Head — tightening sequence 1 stages

short bolts

43 ft. lbs

Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages

22.0

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the spark plugs every 100,000 mi; coolant at 150,000 mi. The big-interval services (at 150,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 7,500 mi	Axle Shaft Oil Seal (inspect) · Body Latches, Locks & Hinges (inspect) · Brake Pedal Assembly (lubricate return spring) · CV Joint Boot (inspect) · Clutch Pedal Bushing (lubricate) · Clutch Pedal Clevis Pin (lubricate)
Every 30,000 mi	Engine Air Filter Element (replace) · Fuel Filter (replace) · Transmission Fluid & Filter (replace) · Wheel Bearing (inspect)
Every 60,000 mi	Accessory Drive Belt (inspect) · Fuel Line (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect)
Every 100,000 mi	PCV System (inspect) · Spark Plug Wires (inspect) · Spark Plugs (replace)
At 150,000 mi	Engine Coolant System (drain, flush & refill)