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| fires then stops http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=74061 |
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| Author: | davidpals [ Thu Feb 07, 2013 6:51 am ] |
| Post subject: | fires then stops |
hi guys - had a load of problems last year - turned out to be number 1 and 3 injectors spilling back too much fuel and losing rail pressure - only found this out after i had changed crank sensor, pressure relief valve at the back of the pump and fuel pressure sensor . i have put the jeep back on the road - runs fine but when you come to start it up - it fires then stops fires then stops then it will go - the odd time it will start straight away - do you think its the pressure releif valve at back of pump ( the replaced one was 2nd hand ) Thanks guys - this forum is the only way i got the jeep fixed !! Dave P |
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| Author: | LMWatBullRun [ Thu Feb 07, 2013 10:52 am ] |
| Post subject: | Re: fires then stops |
Check the fuel return flow on the injectors; if one and three were bad, you may have an intermittent on one of the other two..... If that checks OK, then I would take a hard look at the connectors, then I would look at the pump and rail. |
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| Author: | crd260 [ Thu Feb 07, 2013 6:59 pm ] |
| Post subject: | Re: fires then stops |
mine did that when I first put it back together turned out to be the coolant temp sensor was disconnected... I guess the ECU code is setup to shut the motor off right away if the ECU doesn't know the engine temp. |
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| Author: | davidpals [ Sat Feb 09, 2013 11:36 am ] |
| Post subject: | Re: fires then stops |
just to let you know whats happened - i suspected the valve at the back of the main pump - just got it back together - starts first time now - not been for a run yet - to get to this valve you remove battery lead , alternator turbo hose then plug on valve - its held on with 3 T25 torx screws - what i would do is replace these screws with m5 cap heads just incase you need to do this again - these screws are less likely to round off . - going for a test now - if you dont hear from me its fixed !!! thanks for the replys guys dave p |
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