86 2.5 Running Rough

[mkusmc]

My truck started acting up a week ago. It started sucking gas real bad and idles rough. Now it's sitting in the garage. I finally got it started again. About every 2-3 seconds it injects a big blast of gas causing the rough idle. It does this at idle and under any throttle position. I tried to drive it around the block to see if I could "clean" it out. The brakes and clutch went to the floor so I shortened the drive. Any ideas on the cause of the over injection or other problems?

 

Thanks

[88whitemanche]

Have you checked your vacuum lines?

And check to see if the vacuum line at the map sensor is not disconnected or corroded?

[cruiser54]

The vacuum lines under the throttle body on the intake manifold are prone to cracking.

Also the intake bolts loosen up. Start there.