Jeep Wrangler Forum

Jeep Wrangler Forum (https://www.wranglerforum.com/)
-   TJ Tech Forum (https://www.wranglerforum.com/f210/)
-   -   Hard to start tj wrangler (https://www.wranglerforum.com/f210/hard-to-start-tj-wrangler-93307.html)

tommy2 05-11-2011 07:07 PM

Hard to start tj wrangler
 
Hey guys I have a wrangler that when I go to crank her up to start it takes 5-10 seconds sometimes longer for the engines to fire and start. That seems a lot of cranking to me. It has a 4.0 engine. I can shut the engine off run in and out of a store 5 minutes and same thing. Is this an electrical problem, gas or something else? Any suggestions?

fire239 05-11-2011 07:13 PM

My dads Grand Cherokee did that, just before the CPS went out.....could be the problem.

kfdjason7620 05-11-2011 07:24 PM

Just a habit I have developed over the years, but I always turn key to "on" and let it beep 3 times before I hit the starter, if I jump in it and go directly to start, it will wind a little if its cold, it has always done it, 11 years and 115k

kfdjason7620 05-11-2011 07:26 PM

"In my mind" just to let the pump build up

tommy2 05-11-2011 07:28 PM

I hate to be stupid but what is cps? First jeep I'm green.

PTWarrior66 05-11-2011 07:28 PM

Mine kind of does the same, sometimes it fires right up other it slowly does maybe 3-4 seconds, I think I'll try the key turning thing that may be the answer. I had starter issues earlier this month though.

Indy 05-11-2011 07:40 PM

Quote:

Originally Posted by tommy2 (Post 1233701)
Hey guys I have a wrangler that when I go to crank her up to start it takes 5-10 seconds sometimes longer for the engines to fire and start. That seems a lot of cranking to me. It has a 4.0 engine. I can shut the engine off run in and out of a store 5 minutes and same thing. Is this an electrical problem, gas or something else? Any suggestions?

Most likely it is your fuel anti drain back valve that took a dump. Next time try turning the key on off 2 - 3 times before starting the engine. If it starts right away, then you know it is that valve. You will have to drop your gas tank to replace it.

kfdjason7620 05-11-2011 07:41 PM

Crankshaft position sensor c.p.s.

tommy2 05-11-2011 07:44 PM

Quote:

Originally Posted by kfdjason7620
Crankshaft position sensor c.p.s.

Ah got ya mate thanks
Thanks everyone for quick responses

kfdjason7620 05-11-2011 07:47 PM

Where do I mail the invoice?? Lol

camtron3712 05-11-2011 08:19 PM

same thing happens to me... all i do is pump the gas peddle about 3 times and does not take so long

kfdjason7620 05-11-2011 08:21 PM

Yeah along with the wait, I will pat gas twice when its cold outside

KondritzTJ97 05-11-2011 08:37 PM

I had the same problem with mine this winter it's the anti dran back valve for sure mine starts up right away now

tommy2 05-12-2011 10:22 AM

Quote:

Originally Posted by kfdjason7620
Where do I mail the invoice?? Lol

How about a that a boy button instead?

PTWarrior66 05-13-2011 02:00 AM

Nothing really helped mine start, it's probably something dumb but as long as it starts whatever.

tommy2 05-14-2011 09:51 AM

Quote:

Originally Posted by banipal19

Most likely it is your fuel anti drain back valve that took a dump. Next time try turning the key on off 2 - 3 times before starting the engine. If it starts right away, then you know it is that valve. You will have to drop your gas tank to replace it.

What is the correct name for this part? I cant seem to find it.

troys96xj 05-14-2011 10:20 AM

I have an 05 TJ that did the same thing a few weeks ago. An injector was leaking and caused the pressure to release so replaced and all was good. Did it again and the fuel pump was going bad so I replaced it and all is really good so far?

cblay 05-14-2011 10:50 AM

Get your O2 sensor checked. That was the culprit for the same cranking problem on my 97.

troys96xj 05-14-2011 10:52 AM

Before you go spending $ check the fuel pressure. If it's not holding pressure then it will have to re-prime every time you start it[ hence long crank times]

Cameldog 07-28-2013 11:36 AM

I had the same problem with my 97 TJ 4 cylinder. I would turn the key on and pause for a few seconds twice to get it to start. I started getting an error code 11, Intermittent loss of crankshaft or camshaft sensor. The camshaft sensor on the 1997 TJ is in the distributor. Got a rebuilt distributor with a lifetime guarantee for $50 from O'Reilly's. Did a complete tune up; new cap, rotor, wires & plugs. No more check engine light, starts right up and runs 100% better.


All times are GMT -5. The time now is 06:17 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.