i i at starter and relay . .10 6 onnhx . Starting System How it Works . . . The starting system consists oi: I starter I starter relay I ignition switch When ignition switch is turned to START. a strong surge oi battery current is directed through the starter relay to the starter causing the starter to crank the engine. Trouble-Shooting Starter cranks slowly . . . I check battery charge I clean battery posts and cable clamps ii this does not correct condition . . . I repair or replace the starter Starter does not crank and starter relay chatters or does not click" when ignition switch is turned to START position . . . I perform steps under starter cranks slowly Ii that does not correct condition . . . I pull oiiconnector (red wire with blue stripe) from starter relay I clean any grease. oil or corrosion from terminal 0 assure good relay bracket ground I place transmission in NEUTRAL or PARK I Jumper from starter relay terminal (red wire with blue stripe) to battery's POSITIVE terminal ii condition is not Corrected . . . I replace relay It condition is corrected . . . 0 check ignition switch and wiring circuit to relay for continuity Ii vehicle has an automatic transmission . . . I turn ignition key to OFF I unplug neutral start switch at connector C 1015 I check continuity between the two red wires with blue stripe at the female connector it there is no continuity . . . - repair. adjust or replace neutral start switch It starter does not crank and relay clicks . . . I clean and tighten cable connections Starting/Ignition System I assure thatcable wires are secure in eyelet terminal it this does not correct condition . . . I repair or replace starter if starter spins. but does not crank the engine (humming noise) . . . I repair or replace starter Neutral Stan Switch Location Ignition System How It Works The ignition system contains . . . I transistorized ignition module I ignition coil I breekeriess distributor I spark plugs and wires when the engine is running . . . I the ignition coil sends low-voltage primary current to the ignition module I the ignition module switches primary current oii and on according to signals it receives from the magnetic pickup in the distributor I the magnetic pickup sends a signal to the ignition module as each tooth oi the armature passes it I the ignition module interrupts current to the primary oi the ignition coil. resulting in a high~voltage secondary current that the distributor routes to the spark plugs. Trouble-Shooting CAUTION: Ii the vehicle has a catalytic converter, disconnect the air supply line between the By-Fass Valve and the Maniiold before cranking the engine with the Ignition oil. This will prevent damage to the catalytic converter (pertains only to the following procedures). Alter testing. run the engine for at least 3 minutes beiore reconnecting the air supply line. to clear excess luei from the exhaust system. lithe ignition System is suspected oi maliunctioning . . . First check ior loose or damaged spark plug or coil wires; check ior corrosion. Remove any corrosion with a line tile or steel wool. Reline the inside of each boot with new silicone grease (such as Dow lli). Afterchecking each wire, start car. ii ignition System still isn't working properly . . . Turn ignition oii. Remove coilwire from distributor and insert spark plug with side electrode removed. Crank engine until rotor aligns with pick up as illustrated below. Turn ignition on. hold spark plug shell against engine block. tap base of distributor with screwdriver handle and check for spark. Armature Pickup Alignment ii there is strong spark present . . . Conductcranking test described atend of this segment. ii there is no spark present . . . Measure battery voltage and voltage in red wire leading to ignition module. Voltages should be within 1.0 volts of each other. II not. repair teed to red wire and check for spark. If spark then occurs. the system is OK. It battery voltage is equal or you get no spark after repairing feed to red wire . . . Turn ignition switch irom "run" to oil" several times. A spark seen when the ignition switch is returned to oil" indicates a mallunction in the distributor. If there is no spark whi returned to oft" posit Measure voltage at am the coil. Check iorsparl distributor. Spark indica No spark indicates a ma Jumping Black And Green Wi Ii this does not solve p Disconnect 4-wire conne module. Jumper the hen mate with the module's gl wires by inserting a pape them. Measure voltage 0 terminal of coil. Ii voltage is shown. a maliunctionir indicated. Conducting coil Test Ii the voltage ls equal (in volts) to the battery volt With the coil connector in ground the "TACH TEST terminal at the coil. Meast coil BAT terminal. lithe V( battery voltage. then a ma coil is likely. it voltage Is 6 to a volts . Repair ground circuit mati module black wire. Fiemm )umper. Reconnect module. Tap d test for sparks. Spark inclit is OK, Ii voltage is not 6 to a vo Repair module to coil wire