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Post by HeavyMetal on Oct 19, 2008 20:45:38 GMT -5
Might as well see what i can find out abotu this, been an issue since last winter basically.
A lot of you have seen this, if my jeep sits for a bit, most of the time itll take a lot of cranks to fire up...and the colder it is, the more it sputters upon initial start up..itll sputter and such as it idles or as i drive until it heats up a little (never more than 20 seconds, i suppose), itll be like that til i really get on the throttle when its cold...not sure what would cause something like this, and i dont feel like its something on its way out, because its been this way for a long time now...
when it was hot out this summer, stuttering basically was a non-issue.
but the long crank time was there, not sure if theyre related at all.
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joenitro
 
My tires are better than yours.....
Posts: 748
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Post by joenitro on Oct 19, 2008 20:56:18 GMT -5
i dont have an anwsor for ya will, but id like one myself.... my jeep does this also. not the long crank times b4 it fires like you stated. ( which may be low fuel pressure and it takes a wile for it to build b4 it will fire idk ) but mine sputters and hesitates almost like its boggin out when i get on the gas right after i start it ( it is worse in the cold ) i have to let off the gas and get back on again b4 it will accelerate normal without hesitation. after that it goes away till the next time i restart it...  |
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crosbike
Swap Shop Cop
choo choo
Posts: 6,389
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Post by crosbike on Oct 19, 2008 21:00:45 GMT -5
remove iac. clean. put back. the end
cant hurt.
seems to me to be the cause.
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joenitro
My tires are better than yours.....
Posts: 748
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Post by joenitro on Oct 19, 2008 21:05:42 GMT -5
maybe im just slow...  wtf's an "iac"  |
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crosbike
Swap Shop Cop
choo choo
Posts: 6,389
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Post by crosbike on Oct 19, 2008 21:15:15 GMT -5
idle air control valve
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Post by Wide-J on Oct 19, 2008 21:21:30 GMT -5
Does it have a cold start injector?
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XJLI
The Nina, The Pinta, The Santa Maria.
Posts: 6,923
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Post by XJLI on Oct 19, 2008 22:38:54 GMT -5
maybe some vacuum line somewhere has a crack, when its cold it leaks, then when the motor warms up the line swells and the crack goes away.
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Post by rckrdyxj on Oct 20, 2008 8:28:57 GMT -5
IAC is on the throttle body right?
I dont think these have a cold start injector.
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Post by Wide-J on Oct 20, 2008 16:53:28 GMT -5
Yeah, I also looked into it and they do not have a cold start injector. If I recall, the AIC is located on the throttle body.
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Post by xjeeper on Oct 21, 2008 15:40:11 GMT -5
the start up problem is most likely the check ball in the tank/sending unit. basically the ball is not holding the pressure in the lines and is letting it drain back into the tank. when you toggle on/off several times it builds enough pressure/fuel in the lines to start it.
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crosbike
Swap Shop Cop
choo choo
Posts: 6,389
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Post by crosbike on Oct 21, 2008 15:54:34 GMT -5
i saw on jf way back in the day people using a bmw fuel line with a check valve in it to keep gas from running back to the gas tank. know clue what the part numba is tho.
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CSaddict
PayPal hater
I love Newbs.
Posts: 3,889
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Post by CSaddict on Oct 21, 2008 16:24:01 GMT -5
Also check you IAT parameters.
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to every one of my posts.
