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Old 06-22-2014, 05:06 PM   #1
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Remote start question

I recently purchased a 98 tj which came with a pair of remote start buttons. I have tried it maybe 3 or 4 times just to see how it works or to show someone. So every time I first try to turn it on it almost gets there and than doesn't succeed. However the 2nd time it works and if I turn the jeep on with the key than with the remote start soon after it starts first try. My question really is will this do any damage or cause any problems in the future by continuing to not start. I'm located in New York so it's nice weather however in the winter I was hoping to use the remote start but not if it'll damage my new baby any info would be greatly appreciated.

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Old 06-22-2014, 05:49 PM   #2
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Leaky check valve in fuel pump

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Old 06-22-2014, 06:12 PM   #3
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Originally Posted by Digger84 View Post
Leaky check valve in fuel pump
what confuses me is that it starts with the key first try every time? I'm bringing it back to the mechanic who checked it over before I bought it Monday to get an inspection done so I'll ask him to check that out. Thanks
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Old 06-22-2014, 06:24 PM   #4
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Can tell you an easy way to tell

Let jeep sit overnight then unplug fuel pump before turning key on and see if it starts

With a properly functioning check valve there will be enough residual fuel pressure to start and run for a couple seconds ( I do this when I forget to turn my kill switch off)

If the check valve is faulty there won't be enough residual rail pressure for jeep to start
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Old 06-22-2014, 06:33 PM   #5
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Can tell you an easy way to tell Let jeep sit overnight then unplug fuel pump before turning key on and see if it starts With a properly functioning check valve there will be enough residual fuel pressure to start and run for a couple seconds ( I do this when I forget to turn my kill switch off) If the check valve is faulty there won't be enough residual rail pressure for jeep to start
sweet thanks for the info I'll try this.
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Old 06-23-2014, 12:02 AM   #6
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I'm sorry but the fuel pump would have nothing to do with the remote start not working. From what i can tell is the sequence to start it is being stopped somehow. The remote start is just a bunch of little relays that activate certain wires at certain times in order to start the vehicle. If one of the wires doesn't activate the sequence is stopped and no start. It could be one of several things, some of which is designed for safty.
First I need some more information. Standard or auto? Grey key or black key? Do you see a small switch installed somewhere near the kick panel? Is the remote also an alarm?

If its a standard transmission there is a series of actions you need to do to "set" the remote starter. It would depend on the brand and how it was installed to see.

If it has a grey key. There is a transponder chip inside. The key cylinder needs to "see" the chip in order to tell the computer its OK to start. Usually there is a bypass of some kind that mimics the transponder to fool the computer. Its possible it has lost its programming and has forgotten the correct code. You would need to get an install manual for the brand/model of remote start to capture the signal again. OR it has a spare keg inside the bypass (older style system) and the key was removed. To test it just hold the key against the ignition switch and turn on the remote starter. If it starts then its the bypass.

Small switch in the kick panel or somewhere on the dash. Flip the switch and see if it starts. The installer is supposed to put in a kill switch/ valet switch. It disables the starter so your mechanic doesn't accidentally remote start it. If it has an alarm too, see what the LED is doing. If its on solid then its in valet mode. To take it out of valet mode find the programming button and push it down then cycle the key switch on-off. The light should go out and the alarm and the starter now work.

Hope this helps.
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Old 06-23-2014, 03:20 AM   #7
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I'm sorry but the fuel pump would have nothing to do with the remote start not working. From what i can tell is the sequence to start it is being stopped somehow. The remote start is just a bunch of little relays that activate certain wires at certain times in order to start the vehicle. If one of the wires doesn't activate the sequence is stopped and no start. It could be one of several things, some of which is designed for safty. First I need some more information. Standard or auto? Grey key or black key? Do you see a small switch installed somewhere near the kick panel? Is the remote also an alarm? If its a standard transmission there is a series of actions you need to do to "set" the remote starter. It would depend on the brand and how it was installed to see. If it has a grey key. There is a transponder chip inside. The key cylinder needs to "see" the chip in order to tell the computer its OK to start. Usually there is a bypass of some kind that mimics the transponder to fool the computer. Its possible it has lost its programming and has forgotten the correct code. You would need to get an install manual for the brand/model of remote start to capture the signal again. OR it has a spare keg inside the bypass (older style system) and the key was removed. To test it just hold the key against the ignition switch and turn on the remote starter. If it starts then its the bypass. Small switch in the kick panel or somewhere on the dash. Flip the switch and see if it starts. The installer is supposed to put in a kill switch/ valet switch. It disables the starter so your mechanic doesn't accidentally remote start it. If it has an alarm too, see what the LED is doing. If its on solid then its in valet mode. To take it out of valet mode find the programming button and push it down then cycle the key switch on-off. The light should go out and the alarm and the starter now work. Hope this helps.
Wow thanks for all the info I have a black key automatic and there's no kill switch that I'm aware of but I could be missing it. The reason why I believe it could possibly be the fuel pump is because when I went to look at it the previous owner when he tried to start it with the key it took about 3seconds for it to actually fully start and was a bit rough until it idled for about 30seconds than everything was all good. I'll ask my mechanic today what he thinks it could be and I'll let u guys know as soon as I find out. Thanks for all the info though really learning a lot on these forums and really enjoying it.
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Old 06-23-2014, 05:32 AM   #8
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You should be able to change the crank time in the remote start settings if you have a manual for it...
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Old 06-23-2014, 06:12 AM   #9
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Originally Posted by IcarusLSC View Post
You should be able to change the crank time in the remote start settings if you have a manual for it...
Hopefully its set up for tach sense.

After re- reading the original post I didnt pick up the engine running issue. Track down the problem there first.
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Old 06-23-2014, 06:23 AM   #10
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Hopefully its set up for tach sense. After re- reading the original post I didnt pick up the engine running issue. Track down the problem there first.
As far as I'm aware the engine is completely fine, the mechanic checked everything over and said it was great, hoping he didn't miss anything but I'll find out today I suppose. If it's of any importance the remote start I have is http://www.avital.com/products/Produ...System&id=5004
It's only set up for remote start however and it can't drive off the remote start I have to turn it off by pushing the brake down and then turn the jeep back on by using the key to make it drivable.
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Old 06-23-2014, 06:31 AM   #11
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If it is harder or longer crank to start with key after sitting overnight it is likely check valve

If it starts easily with key even if sat overnight then look elsewhere

Sitting in seat and operating key you can compensate for difficult start in ways the remote system doesn't
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Old 06-23-2014, 06:44 AM   #12
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Originally Posted by Kylek42 View Post
As far as I'm aware the engine is completely fine, the mechanic checked everything over and said it was great, hoping he didn't miss anything but I'll find out today I suppose. If it's of any importance the remote start I have is http://www.avital.com/products/Produ...System&id=5004
It's only set up for remote start however and it can't drive off the remote start I have to turn it off by pushing the brake down and then turn the jeep back on by using the key to make it drivable.
You shouldn't be able to drive just using the remote start. If the key isn't in the on position then the steering wheel is locked. You don't need to press the brake first either. Just insert the key and turn it to "On". Then drive it. Don't turn it to "Start" or your grind the starter.
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Old 06-23-2014, 08:37 AM   #13
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You shouldn't be able to drive just using the remote start. If the key isn't in the on position then the steering wheel is locked. You don't need to press the brake first either. Just insert the key and turn it to "On". Then drive it. Don't turn it to "Start" or your grind the starter.
oh wasn't aware of that thanks. Yea my mom actually tried to start it and beard the grind noise.
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Old 06-23-2014, 08:39 AM   #14
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Originally Posted by Digger84 View Post
If it is harder or longer crank to start with key after sitting overnight it is likely check valve If it starts easily with key even if sat overnight then look elsewhere Sitting in seat and operating key you can compensate for difficult start in ways the remote system doesn't
I just tried to start it with the key first and it didn't start after about 3 seconds I stopped and tried again and it started instantly. I'm pretty positive this is the problem so I'll bring it up to my mechanic being that I have no idea what I'm doing and don't wanna damage anything else trying to fix it on my own. Thank u all for all the info and giving me a very good amount of knowledge on this subject.
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Old 06-23-2014, 05:13 PM   #15
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Alright so I was unable to bring it to the mechanic due to a tight schedule and a long visit to the dmv for registration. I've been reading a lot about this subject and heard if I put the key in the ignition and start the battery without starting the engine and wait a few seconds and start it might work. I tried this and it worked! Started first try without a problem. I also read that if it it's the anti drain back valve if the jeep was parked facing downward on a slope it would start fine. I just parked it on a slope and will try late tonight or early tomorrow. So from what I see I'm either looking at a 280$ fuel pump or maybe possibly just a valve, I'm scared to bring it up to my mechanic cause I'm assuming he will just say I need a new fuel pump no matter what so I want to try things on my own first. I'll let u guys know of any updates.
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Old 06-23-2014, 07:11 PM   #16
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Seriously doubt parking at uphill or downhill grade should matter
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Old 06-23-2014, 09:24 PM   #17
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Seriously doubt parking at uphill or downhill grade should matter
yea haha thought it sounded silly also but I saw 2 people say they thought it made a difference and since part of my driveway is on a slope I figured it wouldn't hurt to try. I'll let u know in the morning if it did anything haha.
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Old 06-24-2014, 08:18 AM   #18
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Haha alright so the incline didn't help and the mechanic said it is most likely the fuel pump so he's going to replace the whole thing being that the jeep has 135xxx miles, he's also replacing a few other things that in hoping are actually needed to replace because my mom actually brought it to the mechanic so she could've easily got ripped off. Seems like a nice guy though the last time I went so wish me luck guys I'm sure I'll have another problem soon haha. Appreciate all the help and info you have all given me.
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Old 06-24-2014, 08:32 PM   #19
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Read the owners manual on that remote start in the link you posted so you know how it works!

Sounds like whomever installed it didn't bother with an anti-grind relay. :/
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Old 06-24-2014, 09:04 PM   #20
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Just an update for you all, being as the jeep was basically a gift from my mom and grandparents my mom has decided to help me pay for everything to be fixed at the mechanic, he found a few things which I'm hoping are real being that I don't know much I can't really guarantee I'm not getting ripped off but I'll trust him. Charging me about 200$ for 2 sway bars to be replaced and about 320$ to replace the whole fuel pump system because that's what he believes is the problem. My mom said he said something about a tray being replaced because it should be replaced after 100k miles but I wasn't there to know what exactly he was talking about. Getting my baby back tomorrow morning hopefully all is well and won't need any repairs soon. I plan on doing future maintenance and minor repairs myself for now on so I'm sure you guys will see me on here often haha. Thanks for all the help everyone you've really helped a ton.

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