My 5L is running on 7 cylinders 6 won't fire I changed the injector twice for six

10

Asked by Nov 24, 2013 at 10:04 PM about the 1989 Ford Mustang LX 5.0L

Question type: Maintenance & Repair

13 Answers

223,105

Did you replace the plugs and wires?

1 out of 1 people think this is helpful.
223,105

Compression check the cylinders? Leak down test?

1 out of 1 people think this is helpful.
10

A while ago but my wires on some melted to the headers I just taped them up it seemed to still run fine. Before I changed to an edelbrock intake and professional products 70 mm throttle body and spacer

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What's the leak down

1 out of 1 people think this is helpful.

the distributor cap is cracked...look for carbon traces...shower it in WD-40 and see if it fires right up~

1 out of 1 people think this is helpful.

leak down is when you have a compression gauge and a stop watch...see how long it takes to reach ambient pressure conditions...comparatively can be useful data to find out which cylinder is weakest...can be done wet (with a few drops from the oil can) or dry (commando)~

10

I will have to look at the distributor

10

An probably take to a garage I don't have a cylinder gauge

10

If it is the distributor will it fire right back up after I change it no problembs

223,105

Swap out the plug wire that melted and see if you have the problem on 6. Swap wire 6 for 7 and see. How does the dist. cap look?

223,105

Have you considered a wiring issue on the injector harness?

10

It's at the garage and the machanic can't find the problem

10

The wiring harness has been. Tried the cap was changed there is compression but the cylinder don't turn

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