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Engine problem 199o itasca 74l v8 Ricl lacomb 12-19-16  
I have a 1990 itasca with a 7.4 chevy it started to backfire and lose power i change plugs got back from trip went to the gas station would not start
got it started for 1min died no restart replaced ignition coil top plug tip broken but now it still no start.what eles might it be or what can i cheack it gets power to the coil but nothing to the spark plugs help please
Re: engine problem 199o itasca 74l v8 Bubba The Bus Tech 12-20-16  
Sounds like a bad rotor, distributor cap coil, pick up coil or module.

First confirm fuel and that the timing chain has not jumped a tooth.

The cap, rotor and pick up coil are very easy to check.

Look inside the distributor cap, is it corroded dirty or does it have tracks left from cross arching? replace cap and rotor. Does the rotor have a burnt tip or a black stain in the center? Replace cap and rotor.

The pick up is easy unplug it from the system, use an ohmmeter to confirm continuity.

Good luck
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