PontiacGrand Am1998Overview/pontiac/grand-am/1998/base/

1998 Pontiac Grand Am

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1998 Grand Am.

Body PASSENGER CAR

The 1998 Pontiac Grand Am occupies the passenger-car segment with a prescribed crankcase fill of 4.5 quarts of 5W-30 API oil for routine service. Reliability records document 184 owner complaints against this model year, with the electrical system generating the dominant share of grievances alongside three manufacturer recalls. Set against the full 1990–2005 production span—where reported defects bottomed at 56 in 1990 and surged to a high of 909 in 1999—the 1998 edition registers as a pre-peak intermediate, positioned just before the sharp escalation in complaint volume that would characterize the following model year.

Model year200520042003200220012000199919981997

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 torque100 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 · 600 CCA battery, OE oil filter 12731175. Note the factory fuel filter is now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. 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 · 600 CCAOEM · verified
Tire sizeGT. GTE:P205-55R16OEM · verified
Wheel / rim6-JJ inOEM · verified

OE service part numbers OEM · verified

Engine oil filter12731175
Engine air filter25099735
Fuel filter25121293 discontinued
Spark plug19301813 alt 19158037
Front wiper blades22155381
Serpentine belt88984195 alt 88986809
Thermostat24507563 alt 24577288

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length187 in
Overall width68.5 in
Overall height53.5 in
Wheelbase103.5 in
Curb weight2945 lb
Track (front / rear)55.9 / 56.7 in
Weight distribution (front / rear)66/34

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the Grand Am of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

8.6 sec0–60 mph (tested)quickest 8.60 sec — 1996 SE Sedan
YearTrim / engine0–60¼ mileHPDrivetrain
1996SE Sedan 2.4L I-48.60 sec16.50 sec150 hpFWD

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. Torque lug nuts to 100 ft-lbs. 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

Engine Oil5W-30 · API
Engine Oil Capacity4.5 qt
Engine Oil5W-30 · API
Engine Oil Capacity4.5 qt

Engine torques

Crankshaft Position (CKP) Sensor Bolt(s)7.4 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)7.4 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)7.4 ft-lbs
Camshaft Sprocket and/or Gear Bolt(s)52 ft-lbs
Camshaft Sprocket and/or Gear Bolt(s)103 ft-lbs
Crankshaft Pulley and/or Damper Bolts129 ft-lbs
Crankshaft Pulley and/or Damper Bolts75 Code J, M ft-lbs
Engine Coolant Temperature (ECT) Sensor Bolt(s)18.5 ft-lbs

Chassis torques

Lug Nuts100 ft-lbs

Ignition

Ignition Coil Secondary Resistance5,000-8,000 ohms
Ignition Coil Secondary Resistance5000-7000 ohms
Spark Plug ManufacturerAC Delco
Spark Plug Gap0.060 in
Spark Plug Torque13.0 ft-lbs
Spark Plug ManufacturerAC Delco
Spark Plug Gap0.060 in
Spark Plug Torque11.0 ft-lbs

Battery & A/C

RefrigerantR134a
Refrigerant Capacity2.25 lbs
Oil GroupPAG
Oil TypeGM part number 12345923 or equivalent.
Oil Capacity9.00 oz
Standard BCI Group Number75
Standard BCI Cranking Performance600 cca
Standard BCI Group Number75

Service checks

Pressure Test15 psi
Radiator Cap Pressure Relief15 psi
Thermostat Opening Temperature185-205 °F
Pressure Test15 psi
Radiator Cap Pressure Relief15 psi
Thermostat Opening Temperature185-205 °F
Fuel Pump Pressure Minimum47.0 psi
Key ON Engine OFF (KOEO)40-47.0

Brakes

Brake ApplicationWITH REAR DISC / WITH STANDARD
Torque Caliper to Bracket81 ft-lbs / 85 ft-lbs
Torque to Knuckle85 ft-lbs / 100 ft-lbs
Minimum Pad ThicknessFront: 0.030; Rear: 0.030 specification
Brake ApplicationWITH REAR DISC / WITH STANDARD
Rotor Max Parallel Variation0.001 in
Rotor Runout Limit0.0015 in
Rotor Nominal Thickness From0.433 in / 1.031 in

Multi-step torque procedures OEM · verified

Cylinder Head — tightening sequence 3 stages
1Bolts 1-840 ft. lbs
2Bolts 9-1030 ft. lbs
390 degrees.90 degrees
Cylinder Head — tightening sequence 2 stages
144 ft. lbs.44 ft. lbs
295 degrees.95 degrees

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 7,500 mi; 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 miEngine Oil (drain & refill) · Engine Oil Filter (replace) · Parking Brake Cable (lubricate) · Shift Linkage (inspect) · Steering Linkage (inspect) · Suspension System (inspect)
Every 30,000 miEngine Air Filter Element (replace) · Engine Breather Filter (replace) · Fuel System (inspect) · PCV Valve (replace)
Every 60,000 miAccessory Drive Belt (inspect)
Every 100,000 miSpark Plug Wires (inspect) · Spark Plugs (replace)
At 150,000 miEngine Coolant System (drain, flush & refill)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The 1998 Pontiac Grand Am sits at the tail end of a clear first-generation arc spanning 1990 through 1998, during which complaints rose from 56 in 1990 to a peak of 488 in 1996 before gradually declining to 428 in 1997 and then dropping sharply to 184 in the target year — the lowest figure since 1992. Recalls followed a similar downward trajectory into 1998, falling from six in 1996 and four in 1997 to three, while investigations dropped from two to one and TSBs held relatively steady at 69 compared to 75 the prior year. This pattern is consistent with a mature platform nearing the end of its production cycle, where accumulated TSBs and prior recalls have addressed many of the issues that drove higher complaint volumes earlier in the generation. However, the dramatic spike beginning in 1999 — 909 complaints, six recalls, three investigations, and 162 TSBs — indicates that a redesign introduced significant new problems, making 1998 a comparatively stable outlier before that disruption. The target year's top complaint areas — Electrical System (25), Service Brakes, Hydraulic (24), Engine & Engine Cooling (19), and Air Bags (13) — along with 15 crash complaints and 7 fire complaints, suggest residual concerns remain, though at modest absolute volumes. **Bottom line: 1998 represents one of the better years to purchase within this generation's federal record, offering the benefit of a debugged late-cycle platform without the dramatic complaint surge that immediately follows.**

3
Open recalls
NHTSA campaigns
69
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
184
Owner complaints
15 involved a crash · 7 a fire
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 184 complaints on record, top 8 components.

Electrical System25
Service Brakes, Hydraulic24
Engine & Engine Cooling19
Air Bags13
Power Train10
Steering10
Suspension9
Vehicle Speed Control8

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 3 campaigns on record for this vehicle.

07E015000Fuel System, Gasoline:Delivery:Fuel PumpReported 26/02/2007

CERTAIN DELPHI AFTERMARKET FUEL PUMP MODULES / MODULE RESERVOIR ASSEMBLIES (MRA) THAT WERE SOLD FOR USE ON THE ABOVE LISTED VEHICLES. DURING PRODUCTION THE MRAS VENT AND FUEL RETURN TUBES WERE REVERSED. THIS CONDITION… Remedy: DELPHI WILL NOTIFY OWNERS AND REPLACE THE DEFECTIVE MRAS FREE OF CHARGE. THE RECALL BEGAN ON MARCH 20, 2007. OWNERS CAN CONTACT DELPHI AT 1-877-335-7443.

07E021000Fuel System, Other:Storage:Tank Assembly:Pressure Relief DevicesReported 12/03/2007

CERTAIN DELPHI FUEL PRESSURE REGULATORS, P/NOS. FP10020-11B1, FP10026-11B1, AND FP10027-11B1, SOLD AFTER JANUARY 9, 2007, AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES LISTED ABOVE. THE UNIVERSAL PRESSURE… Remedy: DELPHI WILL NOTIFY OWNERS AND REPLACE THE UPR FREE OF CHARGE. THE RECALL BEGAN ON APRIL 23, 2007. OWNERS CAN CONTACT DELPHI AT 877-411-8770.

Technical service bulletins NHTSA · verified

Showing 5 of 69 bulletins on record with NHTSA.

BulletinDateComponentSummary
PIP4723F2022-01-14Service Brakes, HydraulicThis Preliminary Information communicates to the dealer the process for downloading or…
PIP4723D2020-01-31Electrical SystemThis Preliminary Information communicates to the dealer the process for downloading or…
19NA2732019-12-02Electrical SystemThis informational bulletin provides information for dealers/technicians on Procedures to…
PIC4696E2019-11-22EquipmentThis Preliminary Information communication provides information to the technician on how…
17NA0732019-09-18EquipmentThis warranty administration bulletin provides information regarding the field action…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific Grand Am. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 1998 Grand Am take?

4.5 qt of 5W-30 API, per the factory manual.

Does the 1998 Grand Am have open recalls?

NHTSA lists 3 recall campaign(s) for this model year. Check your specific vehicle by VIN.