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Mike S.
Mike S., ASE Certified Technician
Category: Ford
Satisfied Customers: 6702
Experience:  ASE Certified Master Technician
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Have 88 ford bronco 2 2.9 lost ground to pcm fixed that had

Customer Question

have 88 ford bronco 2 2.9 lost ground to pcm fixed that had to replace EEC, pick up, coil, plugs,wires, cap, fuel pump and rotor. Now have bright blue strong spark, fuel is at 45 psi, compression is is 170 across the board, no clogged exhausted, its in time we checked three times. we need any ideas
Submitted: 7 months ago.
Category: Ford
Expert:  Mike S. replied 7 months ago.

You never said what the problem was?

Expert:  Mike S. replied 7 months ago.

You should double check the firing order and also make sure the spark plugs are not gas fouled by now.

Expert:  Mike S. replied 7 months ago.

The firing order is clockwise 1-4-2-5-3-6, with #1 being on the left bank.

Also, the spark plug gap should be 0.044".

Expert:  Mike S. replied 7 months ago.

Like this,

Customer: replied 7 months ago.
The problem is after fixing and replacing all of the above parts the bronco still is not running
Customer: replied 7 months ago.
Also replaced fuel pump relay, and power relay
Expert:  Mike S. replied 7 months ago.

Stop replacing parts. Do some tests. Did you double-check the firing order?

How do you the timing is correct if the engine will not run?

Customer: replied 7 months ago.
first of all we are mechanics just like you just not book mechanics we don't have the special ASE by our names. we know what the HECK we are doing, we specialize in building custom cars. the parts that we replaced had to be replaced to get it were we are now. when the truck came to use it was completely dead now we have fuel fire and spark, but it will not run. all we are looking for is any ideas on what it can be and no it's not the firing order and the truck is in time because we reset it when when we thought the chain was broke. so please give helpful ideas and don't down grade again
Expert:  Mike S. replied 7 months ago.

I am not a book mechanic and I am down putting you down.

If you have compression across the board at 170 psi, a good blue spark, the timing chain is ok, the firing order is ok, the ignition timing is ok, the spark plugs are not gas fouled and the gap is correct, fuel injector pulse, there isn't much left except if there is no lift on most of the camshaft lobes.

Unless one of those hasn't been confirmed, such as a spark on each spark plug wire, an injector pulse from each injector.

See if the engine starts for just a few seconds with starting fluid, at least that should rule out the ignition.

Customer: replied 7 months ago.
thank you and am sorry for the rude comments I made before. We have injector pulse and good spray on each injector replaced plugs yesterday, we don't like using starting fluid but heck guess at this point we'll try any thing to get this thing running . thanks for the cam suggestion didn't even think of that that very well could be it. thanks again will let you know what happens
Expert:  Mike S. replied 7 months ago.

Just don't use a lot of the starting fluid if you are worried about wiping the motor oil off the cylinder walls or if you are worried about an explosion or fire, just use 2-3 small short shots into the throttle body and don't get it on anything hot or an open flame.

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