1991 Chevy G-Series Diagnostic & Testing Tools
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S&G Tool Aid®M10 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression TesterChevy G-Series 6.2L 1991, M10 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester by S&G Tool Aid®. This product is made of high-quality materials to serve you for years to come. Designed using...Designed to help to get your job done rightManufactured utilizing the highest quality materials$20.58 - OTC®Kelsey Hayes ABS CableChevy G-Series 1991 Kelsey Hayes ABS Cable by OTC®. Designed with maximum accuracy and precision in mind, this tool is the ultimate solution that will help make automotive diagnostic scanning fast and easy. It’s crafted using the...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$108.49
- IPA®6-piece Master Fuel Pump Relay Bypass KitChevy G-Series 1991, 6-piece Master Fuel Pump Relay Bypass Kit by IPA®. Energize a Fuel Pump with the Push of a Switch! The Fuel Pump Relay Bypass Master Kit combines the most popular fuel pump relay applications. The 6-piece kit allows...Actuates fuel pump when the engine is not runningPlugs in place of relay$63.71
- IPA®6-piece Relay Bypass Kit with Amp LoopChevy G-Series 1991, 6-piece Relay Bypass Kit with Amp Loop by IPA®. Energizes a Fuel Pump with the Push of a Switch! The Relay Bypass Switch with Amp Loop energizes fuel pumps and any 12V relay by powering a DC motor for testing. It...Controls relay circuits independent of "key-on/key-off" systemsRun automotive, 12V DC motors with a push of a switch$89.96
- OTC®IAC Idle Air Signal Test LightChevy G-Series 5.0L / 5.7L / 7.4L 1991, IAC Idle Air Signal Test Light by OTC®. Node Lite - For checking the electronic control module signal that provides direction to the idle air control motor on General Motors vehicles with throttle...Designed to help to get your job done rightManufactured utilizing the highest quality materials$36.50
- Lisle®II™ Relay Jumper Circuit Tester KitChevy G-Series 1991, II™ Relay Jumper Circuit Tester Kit by Lisle®. Set makes testing relays or live circuits quick and easy. Set includes four jumpers to fit many popular relays on Honda, Nissan, Toyota, newer Ford and GM mini micro...Designed for your maintenance needsMade from high-grade material for a long lifespan$66.56
- OTC®Analog Diesel Compression Tester KitChevy G-Series 6.2L 1991, Analog Diesel Compression Tester Kit by OTC®. Easy-to-use compression tester is designed specifically for medium-duty diesel engines equipped with glow plugs. Dual reading gauge measures compression to 1000 psi...Designed to help to get your job done rightManufactured utilizing the highest quality materials$590.11
- Lang Tools®Diesel Adapter for use with Diesel Compression Tester TU-15Chevy G-Series 1991, Diesel Adapter for use with Diesel Compression Tester TU-15 by Lang Tools®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...Designed to help to get your job done rightManufactured utilizing the highest quality materials$15.21 - $60.16
- Mityvac®0 to 1000 psi Digital Diesel Compression Test SetChevy G-Series 6.2L 1991, 0 to 1000 psi Digital Diesel Compression Test Set by Mityvac®. This comprehensive diesel engine compression test kit features an electronic tester that memorizes the peak compression value for each cylinder....Stores maximum compression value for up to 12 cylindersBacklit LC display is easy to read from any angle and in any light$290.50
- Innova®Inductive Timing LightChevy G-Series 6.2L 1991, Inductive Timing Light by Innova®. This best seller is a must have for every tune-up kit. Works with most ignition systems: DIS, conventional, electronic and computer controlled systems - domestic and imports....Check timing, diagnose a no-spark condition, check for electronic advance/retard and moreSlim, rotating barrel for better aim at timing mark$38.23
- Performance Tool®0 to 100 psi Master Fuel Injection Test KitChevy G-Series 4.3L / 5.0L / 5.7L / 7.4L 1991, 0 to 100 psi Master Fuel Injection Test Kit by Performance Tool®. This product is designed and manufactured to help you keep the fuel system of your vehicle in mint condition. It will make...Quickly and accurately diagnose fuel injection problemsAdapters for most foreign and domestic fuel systems$136.09
- Performance Tool®10-piece Electronic Fuel Injection Noid and IAC Light SetChevy G-Series 4.3L / 5.0L / 5.7L / 7.4L 1991, 10-piece Electronic Fuel Injection Noid and IAC Light Set by Performance Tool®. Tests electronic fuel injection systems on GM TBI, Bosch PFI, Ford TBI, GM PFI, Geo TBI, GM SCPI, Bosch 2 and...Fuel Injection System with square 4 pin connectorsDesigned for your fuel system maintenance$34.99
- Performance Tool®6-piece Electronic Fuel Injection Noid Light SetChevy G-Series 4.3L / 5.0L / 5.7L / 7.4L 1991, 6-piece Electronic Fuel Injection Noid Light Set by Performance Tool®. Quickly and easily tests electronic fuel injection systems on: GM TBI, Bosch PFI, Ford TBI, GM PFI, Geo TBI and GM...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$15.53
- OTC®0 to 100 psi Master Fuel Injection Tester KitChevy G-Series 4.3L / 5.0L / 5.7L / 7.4L 1991, 0 to 100 psi Master Fuel Injection Tester Kit by OTC®. Also works on imports, including CIS and CISE fuel systems. With this new kit you can diagnose fuel-related problems, such as a weak...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$559.63
- OTC®0 to 100 psi Stinger Basic Fuel Injection Tester KitChevy G-Series 4.3L / 5.0L / 5.7L / 7.4L 1991, 0 to 100 psi Stinger Basic Fuel Injection Tester Kit by OTC®. Performs running, residual, rail and flow rate pressure tests. This product is designed and manufactured to help you keep the...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$140.66
- ATD®0 to 100 psi Fuel Injection Pressure TesterChevy G-Series 4.3L / 5.0L / 5.7L / 7.4L 1991, 0 to 100 psi Fuel Injection Pressure Tester by ATD®. Basic fuel injection tester includes large and small Schrader adapters, M6-1.00 O-ring adapter and tee manifold. Includes everything...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$51.37
- ATD®0 to 150 psi Master Fuel Injection Pressure Tester KitChevy G-Series 1991, 0 to 150 psi Master Fuel Injection Pressure Tester Kit by ATD®. This product is designed and manufactured to help you keep the fuel system of your vehicle in mint condition. It will make fuel system maintenance...Tests most fuel injection systems both foreign and domesticAll adapters, gauge and hose assemblies feature a quick coupling system for fast and efficient testing connection$466.89
- Astro Pneumatic Tool®Deluxe Noid Light Signal Test Lights SetChevy G-Series 4.3L / 5.0L / 5.7L / 7.4L 1991, Deluxe Noid Light Signal Test Lights Set by Astro Pneumatic Tool®. This product is designed and manufactured to help you keep the fuel system of your vehicle in mint condition. It will make...The most economic way to check electronic fuel injection (EFI) signalsQuickly and easily checks for systems$19.90
- Equus®0 to 100 psi Professional Fuel Injection Pressure Tester SetChevy G-Series 1991, 0 to 100 psi Professional Fuel Injection Pressure Tester Set by Equus®. This product is designed and manufactured to help you keep the fuel system of your vehicle in mint condition. It will make fuel system...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$39.16
- Gates®Black Threaded Fuel Cap Tester AdapterChevy G-Series 1991, Black Threaded Fuel Cap Tester Adapter by Gates®. Gates' Fuel Cap Tester can be made to be compatible with nearly any vehicle on the road with the correct adapter. This product is designed and manufactured to help...For use with Radiator & Fuel Cap TestersDesigned for your fuel system maintenance$21.85
- Lang Tools®0 to 100 psi Master Global Fuel Injection Pressure Tester SetChevy G-Series 4.3L / 5.0L / 5.7L / 7.4L 1991, 0 to 100 psi Master Global Fuel Injection Pressure Tester Set by Lang Tools®. Covers all major model vehicle platforms, domestic and foreign, 1988 to present (does not include CIS/TBI)....Covers all major domestic and foreign platforms 1988 to present (does not include CIS/TBI)Test gauge (includes boot for protection) assembly disconnects from test hose and valve assembly for easier storage and improved gauge protection$463.00
- Lisle®0 to 145 psi Master Fuel Injection Tester SetChevy G-Series 5.0L / 5.7L / 7.4L 1991, 0 to 145 psi Master Fuel Injection Tester Set by Lisle®. Test All Types of Fuel Injection Systems. Set checks fuel pressure on most Port Fuel Injection (PFI) and Throttle Body Injection (TBI)...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$370.36
- Lisle®1-1/16" Oil Pressure Sensor SocketChevy G-Series 1991, 1-1/16" Oil Pressure Sensor Socket by Lisle®. This product is manufactured to help you maintain and service your oil system. It will make it easier to keep the oil pressure under control for smooth and safe...Manufactured for your oil system maintenanceBuilt to enhance your productivity$11.81
- Power Probe®Rocker SwitchUniversal Rocker Switch by Power Probe®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Designed to help to get your job done rightManufactured utilizing the highest quality materials$11.01
- OTC®Encore 1-Year Subscription and Lifetime Hardware WarrantyUniversal Encore 1-Year Subscription and Lifetime Hardware Warranty by OTC®. Encore Domestic, Asian and European Software 1-year subscription kit provides a year of frequent and valuable updates for new coverage, coverage enhancements,...Diagnostics for Life* lifetime hardware warranty means OTC supports your Encore for as long as you own it, as long as you update itThe "hardware warranty" applies to the Encore scan tool tablet only$608.00
- Power Probe®Circuit Tracer and Short Finder KitUniversal Circuit Tracer and Short Finder Kit by Power Probe®. The ECT3000 Electrical Short and Open Finder makes locating shorts and opens quickly and more accurately than ever before. When the ECT3000 Transmitter is connected to an...Trace Out a Short Circuit to Chassis GroundTracing Out a Battery Drain or Current Draw$137.23 - $211.18
- Power Probe®Probe TipUniversal Probe Tip by Power Probe®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs, delivering features and...Designed for your maintenance needsMade from high-grade material for a long lifespan$13.56 - $17.38
- Power Probe®Professional Electrical System Tester KitUniversal Professional Electrical System Tester Kit by Power Probe®. The Power Probe 3 (PP3), signature Power Probe product, is great for simple, quick, accurate vehicle circuit testing, and for powering up lights and components. The...The Power Probe Professional Testing Electrical Kit provides the ability circuit testing Power Probe III combined with the diagnostic capabilities of the PPDMMSupplies Power and Ground for Functional Component Testing$314.46
- Dorman®12 V Circuit Tester with LCD DisplayUniversal 12 V Circuit Tester with LCD Display by Dorman®. Dorman offers a comprehensive line of Electrical Multi-Testers for almost any automotive repair. All Electrical Multi-Testers are constructed of high-quality materials for...Testers light up and/or buzz to indicate testing resultDurably designed for a long service life$14.85
- Interdynamics®5 oz. R-134a A/C Direct Charge UV Leak FinderUniversal 5 oz. R-134a A/C Direct Charge UV Leak Finder by Interdynamics®. Use To Pinpoint The Smallest Leaks In All R-134a Auto Air Conditioning System. Contains 5 Applications Of UV Dye. With Direct Charge Dispenser. 5 Ounce Aerosol...Aerosol applications of R-134a A/C system UV leak detection dyeCompatible with all PAG and ester oils$15.52
1991 Chevy G-Series Models