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-   -   Speeding up ignition? (http://www.wranglerforum.com/f210/speeding-up-ignition-227907.html)

CountryBoyJeep 03-15-2013 06:56 PM

Speeding up ignition?
 
I feel like this is a good post for the tj part of the forum.
Tj's take a good 5 to 6 seconds to turn-over and it annoys me.
What ways can I speed this up so I'm not sitting there going "come on baby you can do it" every morning?
I'm guessing its better spark plugs, ignition, starter, ect. but what is the best way?

Patrick H 03-15-2013 07:18 PM

It should turn over as soon as you hit the key. It should actually start very shortly after.

CountryBoyJeep 03-15-2013 07:20 PM

Not on any I've been around.. Normally takes some cranking

Patrick H 03-15-2013 07:22 PM

Like I said, it should turn over as soon as the key is place in the start position. It takes a couple seconds to actually start and run.

CountryBoyJeep 03-15-2013 07:25 PM

I guess what I'm saying is newer vehicles can start 5 times before mine does once. Is there any way to make it that fast?

Patrick H 03-15-2013 07:31 PM

Quote:

Originally Posted by CountryBoyJeep (Post 3508669)
I guess what I'm saying is newer vehicles can start 5 times before mine does once. Is there any way to make it that fast?

Then there's something wrong with your Jeep.

barkern143 03-15-2013 07:34 PM

No I understand what your saying cause mine use to do that pretty bad as well, how old is your battery and does it have a good amount of cranking amps? Because I changed my older battery out for a higher cranking amp battery and it helped tremendously, just a possible idea.

CountryBoyJeep 03-15-2013 07:35 PM

I don't literaly mean 5 times.. It was metaphorically.. Just never mind :facepalm:

sinepome 03-15-2013 07:37 PM

Quote:

Originally Posted by CountryBoyJeep
I guess what I'm saying is newer vehicles can start 5 times before mine does once. Is there any way to make it that fast?

You can try an msd ignition, bigger spark plug wires, and premium gas or just get the complex electronics of the "newer vehicles" (along with the engine).
I would say as long as its not struggling to start and everything is functioning as it should ( tho not fast enough), then you shouldn't worry about it. I mean, starting it 3 seconds earlier isn't going to give you much of a head start in a jeep.
On a side note my Honda (89) starts way faster than my jeep(94). Both with stock ignitions. GL.

CountryBoyJeep 03-15-2013 07:37 PM

Quote:

Originally Posted by barkern143 (Post 3508698)
No I understand what your saying cause mine use to do that pretty bad as well, how old is your battery and does it have a good amount of cranking amps? Because I changed my older battery out for a higher cranking amp battery and it helped tremendously, just a possible idea.

Thank you! and I don't know how old but Its got like 850 cold cranking amps I think.. optima red top

Jerry Bransford 03-15-2013 07:37 PM

2 Attachment(s)
Replace your fuel pressure regulator and your long crank time to start will be cured. The FPR sits on top of the fuel pump so you'll have to drop the gas tank to get to it.

The FPR is there to keep the right fuel pressure (49 psi) at the fuel rail & keep fuel in the rail right next to the fuel injectors for a fast start. When the FPR leaks, and they have a bad reputation for going bad & leaking, they instead let all the fuel that is supposed to stay at the fuel rail instead drain back down to the gas tank. That long cranking time is the time it takes the fuel pump to get the fuel back up past the FPR to the fuel rail.

These two photos are from the last time I changed out a FPR. :)

CountryBoyJeep 03-15-2013 07:39 PM

Quote:

Originally Posted by sinepome (Post 3508710)
You can try an msd ignition, bigger spark plug wires, and premium gas or just get the complex electronics of the "newer vehicles" (along with the engine).
I would say as long as its not struggling to start and everything is functioning as it should ( tho not fast enough), then you shouldn't worry about it. I mean, starting it 3 seconds earlier isn't going to give you much of a head start in a jeep.
On a side note my Honda (89) starts way faster than my jeep(94). Both with stock ignitions. GL.

I want to put in an msd ignition, I've seen other Jeeps with them. Just need more money and low on my mods list

C.L. 03-15-2013 07:40 PM

Try turning the ignition to ON (not start) for 5 seconds, then turn it to OFF, then turn it to ON for another 5 seconds before turning it all the way to START. If it fires right up after that, you have a leaking fuel return regulator. It's not uncommon, and lets the line from your fuel pump to injectors to drain back into the tank when left parked. The delay you feel may just be the fuel pump trying to refill that line before the injectors get fuel.

When you cycle the key to ON it starts priming the pump, but takes a few seconds to fill that line.

Jerry Bransford 03-15-2013 07:41 PM

An MSD ignition will do absolutely nothing for anything but an old Jeep with an older style ignition. It will absolutely not help a TJ's performance. Not at all. MSD, Jacobs, Mallory, etc. ignition systems can perform miracles on older engines, I have installed a number of them, but they won't help a TJ's engine.

The TJ's ignition is actually superb as is, it has to be to insure the engine can pass the smog checks for a minimum of 7 years as mandated by the EPA.

CountryBoyJeep 03-15-2013 07:41 PM

Quote:

Originally Posted by Jerry Bransford (Post 3508711)
Replace your fuel pressure regulator and your long crank time to start will be cured. The FPR sits on top of the fuel pump so you'll have to drop the gas tank to get to it.

The FPR is there to keep the right fuel pressure (49 psi) at the fuel rail & keep fuel in the rail right next to the fuel injectors for a fast start. When the FPR leaks, and they have a bad reputation for going bad & leaking, they instead let all the fuel that is supposed to stay at the fuel rail instead drain back down to the gas tank. That long cranking time is the time it takes the fuel pump to get the fuel back up past the FPR to the fuel rail.

These two photos are from the last time I changed out a FPR. :)

I'm kinda confused by this but it looks like you know what you're talking about.

Jerry Bransford 03-15-2013 07:45 PM

What is confusing you? The leaky defective FPR isn't able to keep fuel up in the engine as it is supposed to for fast starts even after the engine has been sitting overnight. The unusually long crank time is how long it takes the fuel pump to refill the fuel system that the defective/leaky FPR allowed to empty by letting all the fuel drain back down to the fuel tank.

Replace the FPR and the problem will be cured.

CountryBoyJeep 03-15-2013 07:52 PM

Quote:

Originally Posted by Jerry Bransford (Post 3508735)
What is confusing you? The leaky defective FPR isn't able to keep fuel up in the engine as it is supposed to for fast starts even after the engine has been sitting overnight. The unusually long crank time is how long it takes the fuel pump to refill the fuel system that the defective/leaky FPR allowed to empty by letting all the fuel drain back down to the fuel tank.

Replace the FPR and the problem will be cured.

I gotcha, thats all you had to say haha

Jerry Bransford 03-15-2013 07:55 PM

P.S. To be sure, your ignition system has nothing to do with your slow start. :)

Patrick H 03-15-2013 07:55 PM

Quote:

Originally Posted by CountryBoyJeep (Post 3508703)
I don't literaly mean 5 times.. It was metaphorically.. Just never mind :facepalm:

It's hard to help when the information given is vague and metaphorical.

tangofox007 03-15-2013 11:54 PM

Quote:

Originally Posted by CountryBoyJeep (Post 3508568)
Tj's take a good 5 to 6 seconds to turn-over and it annoys me.

What, exactly, does the term "turn over" mean in this context?

Patrick H 03-16-2013 12:05 AM

Quote:

Originally Posted by tangofox007 (Post 3509594)
What, exactly, does the term "turn over" mean in this context?

There's some of that vagueness I was speaking of.

barkern143 03-16-2013 12:18 AM

Quote:

Originally Posted by Patrick H (Post 3509617)

There's some of that vagueness I was speaking of.

Why are you pestering this guy? All he wanted was a little help and your negative comments don't help him at all with the starting issues he's having....

Patrick H 03-16-2013 12:36 AM

Quote:

Originally Posted by barkern143 (Post 3509658)
Why are you pestering this guy? All he wanted was a little help and your negative comments don't help him at all with the starting issues he's having....

I'm not. I was trying to help. These weren't negative comments, they were factual observations.

Jerry Bransford 03-16-2013 09:27 AM

I have to agree there is too much non-helpful/non-productive/non-positive input from some.

CountryBoyJeep 03-16-2013 06:09 PM

Quote:

Originally Posted by barkern143 (Post 3509658)
Why are you pestering this guy? All he wanted was a little help and your negative comments don't help him at all with the starting issues he's having....

There's a lot of pestering on this site. I obviously don't understand.

Gixxer86g 03-16-2013 06:46 PM

CBJ, when I first picked up my Jeep TJ she ran quite nicely. But I noticed it didn't crank over as soon as I liked. As with every used vehicle I buy, I did a tune up. New cap, rotor, and plugs at first. The PO had crappy E3s in there. I put in the proper NGK VPowers. Noticeable improvement. Next i replaced the PO's fat Accel wires with the wires I stock. Autoextra (made by Standard). Now she runs WAY better.

Don't waste your time with MSD or any of that other stuff. Just tune it up with OEM spec parts.

If that doesn't cure your problem, look at the fuel pressure regulator like Jerry said. That's what I'd tell a customer. That's why they keep coming back.

tangofox007 03-16-2013 08:19 PM

Quote:

Originally Posted by Gixxer86g (Post 3512119)
CBJ, when I first picked up my Jeep TJ she ran quite nicely. But I noticed it didn't crank over as soon as I liked. As with every used vehicle I buy, I did a tune up. New cap, rotor, and plugs at first. The PO had crappy E3s in there.

Problem is, plugs, caps and rotors have absolutely nothing to do with how fast an engine "cranks over."

Gixxer86g 03-17-2013 06:08 AM

Then maybe my PR fixed itself after I did the tune up...........:whistling:

But, my problem wasn't anywhere as severe as the OP's.

Toobuff 03-17-2013 09:04 AM

Mine always has to crank for 2-3 seconds before it starts first thing in the morning. After that first start it will fire up as soon as you turn the key. Jerry's explanation fits my symptoms exactly. I'm sure I'll be dropping that fuel tank for one reason or another before too long and when I do I'll pop in a new FPR. Excellent info as always Jerry - TY :)

CountryBoyJeep 03-17-2013 09:56 AM

Quote:

Originally Posted by Toobuff (Post 3514052)
Mine always has to crank for 2-3 seconds before it starts first thing in the morning. After that first start it will fire up as soon as you turn the key. Jerry's explanation fits my symptoms exactly. I'm sure I'll be dropping that fuel tank for one reason or another before too long and when I do I'll pop in a new FPR. Excellent info as always Jerry - TY :)

Exactly haha as soon as I have another reason to drop the tank I'm doing it :thumb:


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