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Unread 05-18-2015, 01:45 AM   #1
Mousejockey
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Slow to start after lift, Speedo gear?

Since I did the lift/tires a few weeks ago, its been getting slower and slower to start. Before the lift it would start right away. I have not changed the spedo gear yet, being electronic does the computer figure in the spedo reading into all the other crap when it figures what fuel ratio, timing, ect?

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Unread 05-18-2015, 01:50 AM   #2
Neil F.
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Speedo has nothing to do with starting ir running
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Unread 05-18-2015, 01:50 AM   #3
Knuckelhead
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Have you had the battery load tested after knowing that it has a full charge?...
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Unread 05-18-2015, 05:08 AM   #4
Athensdawgs81
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Yeah, sounds like your lift may just be coincidence to your battery going bad.
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Unread 05-18-2015, 07:39 AM   #5
Mousejockey
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Battery is fine, its not slow turning over, used to catch very quickly once you turn the key. now its turning over several times before its starting.
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Unread 05-18-2015, 08:26 AM   #6
Athensdawgs81
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I still don't think it's related to your lift. Do you have any codes? Are the plugs good? Are you getting ample fuel? Maybe the anti-drainback valve. Maybe the CPS starting to go. At this point until you do some troubleshooting it could be anything.
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Unread 05-18-2015, 08:32 AM   #7
mdm
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Quote:
Originally Posted by Athensdawgs81 View Post
...Maybe the anti-drainback valve. ..
Turn the key on and let it sit for a few seconds before cranking. If this helps it start quicker it could be the anti-drain back valve in the fuel pump. It could also be a leaking fuel injector.
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Unread 05-18-2015, 12:51 PM   #8
Mousejockey
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I'll check into all that, was just wondering is the electric spedo was a factor.
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Unread 05-19-2015, 06:58 AM   #9
JBTJ
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Quote:
Originally Posted by Mousejockey View Post
I'll check into all that, was just wondering is the electric spedo was a factor.
You don't have one. Your speedometer runs off a small gear located inside the transfer case. The gear, is about $40 and takes less than 5 minutes to change.

But this has nothing to do with the starting issue, only with your speedometer being off due to the larger tires installed.
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Unread 05-20-2015, 10:40 PM   #10
Mousejockey
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Hmmm let the jeep sit for a day after the wheelin trip, several times on the trip had long cranks before it would fire, wen out tonite and hit the fuel Schrader valve and nothing came out. Turned the key on for about 5 sec then cranked it and it fired right up. Let it run for a min, shut it down then poked the Schrader again and no fuel came out. Drainback valve?
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Unread 05-21-2015, 08:27 AM   #11
biffgnar
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Quote:
Originally Posted by JBTJ View Post
You don't have one. Your speedometer runs off a small gear located inside the transfer case.
Which gets converted to an electronic signal for transmission to the PCM. Problem with that conversion or transmission while not common is possible.
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Unread 05-21-2015, 08:27 AM   #12
biffgnar
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Quote:
Originally Posted by Mousejockey View Post
Drainback valve?
Sounds like it
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