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Old 03-24-2013, 07:53 PM   #1
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Exclamation TJ winch install, engine reving???

today, just finished a smittybilt xrc 8 winch install that went really smoothly. instructions were simple, pictures did not help much but figured it out. wired it up and the winch works like a charm. free pull out and auto in or out. so i fire up the jeep and the engine automatically climbs to 2500 rpm. the jeep cold never revs that high. upon tapping the accelerator to "bump" the rpms down the engine hesitated, then the rpm's climbed to 3k. shut the vehicle down, scratched my head and checked all connections, positive lead to battery, negative to battery and ground stud on winch and the other 3 are labeled B, C, and D. hard to mess that up... what did i do wrong??? help please

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Old 03-24-2013, 07:59 PM   #2
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cont.

also i searched on here for similar issues and was unsuccessful. if you know of another thread or post i didnt see please advise thank you.

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Old 03-24-2013, 08:41 PM   #3
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Hope you don't mind, but I'm 'trolling' this post in hopes of an answer to your question as well!
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Old 03-25-2013, 02:43 AM   #4
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I have the smae winch, and it was a breeze to install, so i feel like you didnt install it wrong. Lets hope not. I dont think i have the same problem, or i must be an idiot because i didnt notice. When you started the jeep, was the winch controller plugged in or out? and is there a difference in RPMs when the controller is on or off?
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Old 03-25-2013, 04:24 AM   #5
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My guess is that you have a cruise control and the underhood work caused a leak in one of the vacuum lines attached to it.
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Old 03-25-2013, 06:55 AM   #6
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Quote:
Originally Posted by KaiserJeep View Post
My guess is that you have a cruise control and the underhood work caused a leak in one of the vacuum lines attached to it.
X2.
I have found the easiest and safest way to find a vacuum leak is to take some brake clean and spray all vacuum lines and intake componants. If a leak is present the engine will suck in the brake clean and imidately bog down.
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Old 03-25-2013, 07:05 AM   #7
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Doubt the winch has anything to do with it but have you tried ruling it out by disconnecting the winch leads at the battery and start the Jeep again? I agree with others regarding vacuum leak. I would start checking the vacuum lines along the fender side where you ran the winch cables. If no vacuum leak, i would then next clean the TB and IAC.
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Old 03-27-2013, 03:07 AM   #8
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Yeah thanks all for the info. I am thinking probably vacuum hose after reading more. I ran the power leads along the passenger side fender directly to battery. Upon checking things out i also noticed the brake pedal is extremely hard. This would make me think the vacuum hose leading from the brake booster or master cylinder, but i was not working on that side. Work has been busy. When i figure it out will post results. Until then thanks for the info and Jeep has to stay parked...
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Old 03-27-2013, 07:24 AM   #9
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Yeah thanks all for the info. I am thinking probably vacuum hose after reading more. I ran the power leads along the passenger side fender directly to battery. Upon checking things out i also noticed the brake pedal is extremely hard. This would make me think the vacuum hose leading from the brake booster or master cylinder, but i was not working on that side. Work has been busy. When i figure it out will post results. Until then thanks for the info and Jeep has to stay parked...
I think you may have found your issue. The power brake vacuum hose is rather large comparatively. That much volume would definitely increase RPM. Some one wrote using "brake cleaner" to test for leaks. I think that would be a mistake. Though I am sure it has been effective, using carb/choke cleaner is designed to be ingested through the intake, thus, combusted. Where brake cleaner may be combustible, as in flammable, I feel it may cause harm. Just beware and read the label before going that route.
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Old 04-01-2013, 01:31 AM   #10
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to finalize the conclusion to the post, the vacuum line from the master cylinder area inward had popped off. upon replacement which took a tedious 3.8 seconds jeep is normal again. thank you for the knowledge and advice all
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Old 04-01-2013, 04:20 AM   #11
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This is an example of why I love this site. Planning on getting a winch in the future. No idea what vacuum lines are but now I know what kind of a problem they can cause.

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