Hi guys, i just joined and need a little help. I have a 99 navigator and the back will not air up. The pump wasn't coming on, so i hot wired it and the front will air up but not the back. PLEASE HELP.

Thank you,
drcoop

Sorry don't know much about those pumps on these vehicles, can't help you there, wish I could. Did you read my thread have you seen any Navi. with dual exhaust on it with dual pipes, one coming out of each side of the truck, if so how is it done without taking out the spare.

Sorry don't know much about those pumps on these vehicles, can't help you there, wish I could. Did you read my thread have you seen any Navi. with dual exhaust on it with dual pipes, one coming out of each side of the truck, if so how is it done without taking out the spare.I have dual pipes on my Navi, but I did have to take out the spare tire. Its worth the losing the tire for the sound it makes when you get on it!

drcoop

You may want to take that to a shop and have it looked at. They can manually air up each individual circuit with the scan tool. They should be able to tell quickly what component is failing.

Just to let anyone who might have this problem know. It was a relay. I bought a level load sensor and I don't need it. I paid $105 for it and will sell it for $75.

Thanks, drcoop