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Re: 87 dodge ramcharger not firing
Pull the coil wire out of center of distributor cap and lay it close to where you unpluged it from distributor cap, and turn over engine if coil is good you will see the spark jump. If no spark coil bad.
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take #1 plug out bring the cylinder up on T.D.C.(top dead center) check timming marks making sure that it is T.D.C, on the firing stroke, look at rotor see if it is pointing at #1 on the cap,also check plug wires make sure they are on the right place on cap , and plugs,and check firing order hope this helps!
check distributor module, oreilly can check these for free. also maybe plugs, wires, cap, rotor.. if this isnt it maybe the pickup coil went bad which would usually be easier to buy a new distributor instead of taking apart distributor, if you have to replace distributor i would check junk yard prices on something older like that you can probably get parts for pretty cheap
it sounds like the its not getting enough gas to stay running. try looking for vacum leaks with a propane torch going over all the vacum lines with the FLAME OUT but the troch on when it is idling. if the idle goes up at any time when the torch passes over a line than you have found your leak and replace the line. even if you have one line bad keep going over all of them. and if there is no vacum leaks than start the engine and let it idle for about ten minutes, shut the engine off and take all the plugs out. if any of them are wet with gas than you have a spark problem and then begin going over your cap, rotor, wires, and points.
Fouled spark plug? Bad wire? Rotor / cap new? Check those things out, wear a thick rubber glove, take the wire off the non working plug, put a screwdriver next to the wire (while car is running) and see if a spark is made. If it is, your plug is bad. If no spark, replace wires. Still no spark? Change your rotor and cap. Still no spark? Ignition module. Following those steps will save you some green.
does your truck have a distribator or coil pack the reason i ask is because a distribator also has a coil if it does have a distribator check the cap and rotor button by removing the cap quick and simple fix if you need more help my number is 850-791-4498
i would start with the basics- did you make sure you followed the correct firing order when you installed your new plug wires? when you changed the cap/rotor did you notice any track marks inside the old cap? was the old rotor burnt/corroded? ive got a 97 ram and the cap is a b*tch to get to being buried in the back, could you have inadvertently moved the rotor off its timing mark? mis-aligned the crank sensor when installing your new cap? i would recheck how the cap was installed, just because you were able to position it proper and tightened down the screws doesnt mean that you didnt accidently pinch the wires on the crank sensor, or turned the rotor off its mark. also when pressing on the plug wires on the cap did you look for the "1" mark on the cap? this is your reference point for firing order. im not sure these are you problems, but rechecking your work to make sure something wasnt knocked off-kilter, or wrong plug wire placement would confirm the problem lies other than what was replaced. i hope this helps