NAXJA Forums -::- North American XJ Association  

Go Back   NAXJA Forums -::- North American XJ Association > NAXJA Unibody Jeep Technical Forums > Jeep Cherokee XJ (1984 - 2001) > Modified Tech Discussion
HOME Member FAQ Sponsor Info Rules Bylaws E-Mail

Modified Tech Discussion Forum for Tech related discussion for Modified XJ's and MJ's.

Thread Tools Display Modes
Old May 18th, 2020, 10:19
Black1990jeep Black1990jeep is offline
NAXJA Forum User
Join Date: Apr 2018
Location: california
Posts: 492
Air Pump Voltage Improvement, New FAT Wire!

my air pump was always a bit slow filling tires, it is located way in the back of the XJ about as far from battery as can be. about 23 feet of wire away each way.

prior owners shop installed it using 12 AWG wire, and did a round trip by running the negative 12 awg wire back the battery too. 46 feet of wire total!

my pump was slow to fill tires, So I installed 6 awg wire from battery positive to pump, and grounded pump to the body panel next to the pump.

the results...

old wires...

11.2 volts at pump when running. fills my 33 x 12 tire from 13 to 20 psi in 120 seconds

New fat wire...

13.4 volts at pump when running fills my 33x 12 tire from 13 to 22 psi in 120 seconds

the new wires allowed a 23% increase in pressure for same time of pumping. I now should be able to fill up my tires much faster. One less thing for my 4x4 friends to complain about, my slow refill times.

I am happy now!
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Throttle position sensor - Voltage on output wire Heavyopp OEM Tech Discussion 74 November 21st, 2017 07:28
Fuel pump voltage jrowell OEM Tech Discussion 20 July 22nd, 2013 12:46
Fuel Pump low voltage jeepster_259 OEM Tech Discussion 11 July 13th, 2009 18:50
Fuel pump voltage ? blaisetd OEM Tech Discussion 3 December 7th, 2008 17:00
Stereo ignition wire voltage gba88 OEM Tech Discussion 12 September 6th, 2006 20:37

All times are GMT -7. The time now is 13:22.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
NAXJA and NAXJA logo's Copyright NAXJA. All content/images Copyright NAXJA 1999-2014