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Thanks. I’ll have to test that tomorrow if I can find my vacuum pump

I did replace it with a new one and I did use a voltmeter and got the 5 volts but I couldn’t find my vacuum pump. I need to find it so I can test that. Should it go down to 0 or that 1.8v?

Is it possible for a bad battery cause these problems? I don’t know how old the battery is. It came with the Jeep when I got it a year ago and we have had to charge it up a few times since we got everything back together. I only ask because last night I left the key on in the Jeep and had to...

I have a 1994 Wrangler with the 2.5. I have recently rebuilt the engine and got it running and actually let it run for 30 minutes the other day. I did have problems with the map sensor not letting it stay running. I was getting codes 13 & 14 so I go to test the sensor and it checked fine so I...