I bought my second mustang the other day. Its an 89 LX convertible with a 2.3L. The engine has a problem that I hope someone can help with.
When I hook up the battery, the fuel pump runs and there is a hiss at the 2nd injector. The hiss continues and does not stop. It sounds like fuel going into the injector. The engine runs, but misses.
Question, How can the fuel pump run without the key on?
When I ask the prior owner about the problem, He says that the car had a new fuel pump on it some time ago. He also said the problem started with the engine miss, he thought it was a bad injector, then one day when he was trying to find the problem the fuel pump did not shut off when the switch was turned off. He un-hook the battery and it sat untill I bought the car.
Any suggestions? The guy says there is two fuel pump relays, one in the trunk and maybe one under the dash. I don't have any manuals, but will get some.
Thanks in advance.
Sparky
When I hook up the battery, the fuel pump runs and there is a hiss at the 2nd injector. The hiss continues and does not stop. It sounds like fuel going into the injector. The engine runs, but misses.
Question, How can the fuel pump run without the key on?
When I ask the prior owner about the problem, He says that the car had a new fuel pump on it some time ago. He also said the problem started with the engine miss, he thought it was a bad injector, then one day when he was trying to find the problem the fuel pump did not shut off when the switch was turned off. He un-hook the battery and it sat untill I bought the car.
Any suggestions? The guy says there is two fuel pump relays, one in the trunk and maybe one under the dash. I don't have any manuals, but will get some.
Thanks in advance.
Sparky