1988 Ford Bronco II Won't Start - Ignition System

Question: My Ford BroncoII 1988 will not start. I got it out the shop about 3 days ago for valve cover gaskets and a waterpump. When I got the truck back I changed the distributor cap and rotor and the plug wires. The truck ran fine and I parked it last night and this morning it would not start. There is fire going to the coil, and the fuel pump is working. The engine turns strong but it will not crank, the lights and radio are working, I even tried jumping the battery to just eliminate some problems and still nothing. I put a new MAP sensor on and still it won't start. The truck did this same thing before about 6 months ago but it eventually started after about 30 minutes. Now it will not start at all. It is a 2.9l V6 manuel trannsmission.Prior to putting the wires on I noticed it was idleing a little rough and sluggish and the RPM's were fluctuating at idle so I adjusted it so it would idle a little higher and it seemed fine. All the plug wires are on good and have good contact.

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Technican: O.K. let me try and understand this. Was the changing of the parts you state under the advise of the shop that did the prior repairs? You also state the engine turns strong but will not crank. I take it by this the motor turns over but will not fire. At this point I have to take some wild guesses. First off, you say you get power to the coil, is there spark at the plugs? Next point I would look at is if there is fuel accually entering the fuel galley. You say you adjusted the idle before hand. Is it a normally asperated engine or an EFI. If no fuel is present at either of these and the fuel pump is working and spark it present at the plug, you have a fuel problem. Depending on the type of carubation you have it could be the carb, throttle body or TPS sensor. With some more info I may be able to help you through. Paul

Owner: It is in an EFI and I did the repairs under my own discretion the shop did not tell me I needed the wires, cap, and rotor

Technican: My next read would be, if spark is present at plugs( you can check this by puling a plug and ground it while cranking)I would start looking at the before mentioned TSP and quite possibly a MAF of ECM, all of whitch would require a scanning device to gather information from the ECM. Check with your repair shop or with your local parts houses. Some are offering this diagnostic check for free or at a nominal cost. Paul

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