I am trying to start my engine on my 1985 4runner it turns over but doesnt catch on.. what should I do..
'85's mostly had 4 cylinder engines, 22R, 22RE and 22REI. Remove a sparkplug wire and stick a sparkplug into the end. Hold the sparkplug, preferably with a well insulated glove, against a good metal part (exhaust manifiold will do, no paint or rust) nearby being carefull to stay clear of the fan. Now have someone turn the key and when the engine turns, see if a spark is jumping across the sparkplug your are holding...snap,...snap..snap....is what you should see and hear. If not, your ignition is not creating spark. Remove the center wire of the distributor and try to put the sparkplug on the end of that wire and repeat the previous test. If you get spark that means the distributor cap is not transferring the spark thru it to the wires that go down to your sparkplugs. Remove and replace the distributor cap and the rotor inside paying special attention to mark the wires and where they plug into the cap. The rotor only goes on one way, same with the cap. If you dont get spark coming to the center wire of the distributoe cap your ignitin module may be bad, a good time to have a shop run a test on it. Before heading to the shop, be sure to check your fuses. Maybe you should do that first as it is the simplest. If you have spark at the sparkplug and still no starting, a small amount of gasoline poured into the intake ( please dont pour a cup of gas into it! Just a spoonfull or so). With the sparkplug wires inplace, crank the motor. If it kicks and then goes back to cranking with no results, your fuel isnt getting to the intake. Could be a fuel pump (common) or a plugged fuel filter. The filter is easy, replace it. To test for fuel pressure you will need to locate the fuel line coming to the intake, carburated or injected, the inlet can be loosened and have someone turn the key on and you should see some fuel leaking around the fitting you only loosened. DO NO REMOVE IT-JUST LOOSEN. If you have fuel pressure your problem needs a mechanic. If no fuel pressure it's time to check the fuel pump thru the access panel under the backseat. BE SURE TO TIGHTEN THE INLET FUEL FITTING AT THIS POINT. Good luck.
REMEMBER- GASOLINE IS VERY DANGEROUS. DO NOT PERFORM THESE DIAGNOSTICS UNLESS YOU FEEL TRAINED ENOUGH TO DO SO AND ALWAYS WITH AN EXTINGUISHER ON HAND.
Apr 09, 2010 |
1985 Toyota 4Runner