GMC S15 Parts

When General Motors released the GMC S15 during 1981 as the 1982 model it represented a major advance in small truck production that resulted from the 1973 Arab oil embargo. The GMC S15 entered the market in 1982 with its 1.9L Isuzu four-cylinder engine but later received a major upgrade with its 4.3-liter V6 engine addition in 1988. All GMC S15 versions included standard or extended cab variants and short and long bed configurations while keeping their height at 61.3 inches and width at 64.8 inches. The available transmission options featured a basic five-speed manual and an extra cost four-speed automatic transmission to improve flexibility in driving conditions. GMC S15 provided an adjustable configuration between two-wheel and four-wheel drive systems while Insta-Trac 4WD as well as the hydraulic clutch system joined the lineup in following years. Fuel economy for the GMC S15 ranged from approximately 15 to 21 mpg in city driving and 19 to 25 mpg on the highway, depending on the engine and drivetrain configuration. Genuine GMC S15 parts provide the optimal choice because they follow original design criteria and pass strict quality tests which preserves the long-term value of the vehicle.

GMC S15 engine concerns group into lubrication, sealing, cooling sealing, and ignition control. For lubrication, the GMC S15 often leaks oil from the valve cover gasket. Oil pools on the head and burns on the manifold, causing odor and smoke. Clean the area, verify PCV function, and replace the valve cover gasket. For cooling and mixture sealing, the GMC S15 develops intake manifold gasket leaks. On the S15, symptoms include coolant loss, milky oil, rough idle, and rising temperature at idle. Pressure test the system, inspect crossover ports, and install a revised intake manifold gasket. For ignition, the GMC S15 may stumble or stall from an internally failing distributor. Look for random misfires, tach dropouts, and moisture intrusion under the distributor cap. Check base timing, verify power and ground at the ignition module, and road test. Corrective action replaces the distributor, sets timing, and confirms steady idle and restart. After repairs, the GMC S15 should start quickly, hold temperature, and run smoothly. Verify no coolant in the oil and change oil if contamination is present. Finish with a road test on mixed grades, then recheck for leaks and stable trims.

When it comes to authentic GMC S15 parts, ChevyPartsGiant.com stands out as the go-to online store. We only sell OEM GMC S15 parts, like Headlights & Lighting, A/C & Heating, for a perfect fit and for factory performance. All come directly from authorized GMC dealers to help you skip the high prices at local stores. With our knowledgeable team, finding the right GMC S15 part is quick and hassle-free. Easy shopping at the comfort of your home through our easy site. All purchases come with expedited shipping, a manufacturer's warranty, and returns. Start to fix your GMC S15 right away!