My 95 Jeep Wrangler is getting harder and harder to start as the mornings are...

  • Thread starter Thread starter Honsell T
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Honsell T

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...getting colder. ? Recently had a tune up, new plugs, wires, distribution cap. At first I suspected a weak fuel pump, as it eventually starts after several tries- I thought maybe the fuel pump is getting weak. I tested the fuel line pressure and it's within the manual specs, so now I'm looking at the fuel pump relay switch as the culprit, because it would click loudly for a second or two (not everytime though), then the engine would start up everytime after that clicking sound. I've since changed out the Fuel Pump Relay switch with a new one, and it's started fine all day, but the motor has been warm all day also. The real test will be tomorrow morning when I start the cold motor. The battery is strong. Any ideas on the relays clicking? Thanks!
I should mention that the clicking sound is coming from the relay, not the fuel pump- I know the difference in the sounds.
I found the problem! It was a bad ground- apparantly the whole electrical system is grounded to the frame with the battery cable. I had to clean the paint off this bolt, clean everything up. Works like a champ!
 
The relay is supposed to click. The problem you have, is your fuel pump. The pressure is bleeding down. Put your fuel gauge back on it. leave it on, over night or a couple of hours, and look at it. It will say 0 psi and as you crank or turn your key on and off and on it will go up and bink your car starts. Then if you shut it off the fuel pressure is up. so it will start right up. But the next morning or after work it has a looonnnggggg crank time. Before it fires. You need a fuel pump and filter.(Some don't have fuel filters)
 
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