Thanks for the tip ....just checked out that post about "bleeding" the fuel system... will try that in a few moments
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| 2.8CRD broke down without any engine light or error codes http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=37258 |
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| Author: | Sonix [ Tue Nov 11, 2008 10:19 am ] |
| Post subject: | 2.8CRD broke down without any engine light or error codes |
Hi there .....long time no see! I finally had my first (and hopefully last?) brakedown with my Jeep this morning ... Was driving along the highway ... no problem at all ... then got off the highway, and at the first traffic light, the engine just cut out ... no engine light ...nothing ... I did the normal procedure to check error codes ....nothing ...no error codes ... When I switch the ignition on and turn the key, the the starter turns the engine, but it just doesn't start ... as if there is simply no diesel coming through ... I checked basicly everything .... there is more than half a tank of fuel left.... the oil level and water levels are fine ... everything looks well ...uhmmm ..OK! ...but the freekin thing just doesn't wanna start .... I even disconnected the battery and left it off for 20 minutes .....still no change ... Any idea what might cause this problem, without lighting the engine light or giving error codes???? |
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| Author: | Wobbly [ Tue Nov 11, 2008 10:24 am ] |
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Did you try to purge air from the fuel filter head? You will need an 11mm wrench if the same filter head is used as in later models. |
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| Author: | Sonix [ Tue Nov 11, 2008 11:10 am ] |
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Thanks for the tip ....just checked out that post about "bleeding" the fuel system... will try that in a few moments
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| Author: | cerich [ Tue Nov 11, 2008 11:22 am ] |
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timing belt? |
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| Author: | Joe Romas [ Tue Nov 11, 2008 12:45 pm ] |
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cerich wrote: timing belt?
If it were the timing belt I would think he would have mentioned an unmistakenable "crunch" when the valves hit the pistons 
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| Author: | cerich [ Tue Nov 11, 2008 4:20 pm ] |
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Joe Romas wrote: cerich wrote: timing belt? If it were the timing belt I would think he would have mentioned an unmistakenable "crunch" when the valves hit the pistons you would think so..... however there are very few things that actually work to stop a diesel dead... |
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| Author: | Sonix [ Tue Nov 11, 2008 4:29 pm ] |
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ok .... had an "interesting" time trying to see the cause of the problem ... it was the timing belt ...  ....actually not the timing belt itself, but one of the pulleys ... we call it the "idling pully" .... it just broke ....still don't understand why, cause the bearing of the pulley still feels smooth, but the surrounding part just disintegrated ...
So tomorrow I'll need to get a new timing belt (I don't trust the old one) ..... a new fanbelt (the old one looks a bit cracked), and an idling pulley ... then put everything back, and then try and start the engine, HOPING that no damage was done to the valves ..
STILL don't understand why NO engine lights came on ... 
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| Author: | BlackLibertyCRD [ Tue Nov 11, 2008 6:30 pm ] |
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Sonix wrote: ok .... had an "interesting" time trying to see the cause of the problem ... it was the timing belt ...
....actually not the timing belt itself, but one of the pulleys ... we call it the "idling pully" .... it just broke ....still don't understand why, cause the bearing of the pulley still feels smooth, but the surrounding part just disintegrated ... So tomorrow I'll need to get a new timing belt (I don't trust the old one) ..... a new fanbelt (the old one looks a bit cracked), and an idling pulley ... then put everything back, and then try and start the engine, HOPING that no damage was done to the valves .. STILL don't understand why NO engine lights came on ... Sounds like this happen suddenly so no light. Changing the timing belt is tricky and you need a few special tools. Hope the valves didn't hit. Service manual is online or I can copy the pages for your if needed. |
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| Author: | MrMopar64 [ Tue Nov 11, 2008 10:27 pm ] |
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When doing this repair, you need to pull the cylinder head and check the valves!! We had a customer from a different sector with the same engine that had a timing belt go bad, it made no bad sounds but smoked the valves which ruined the head. Sure, you could maybe replace the valves but the risk of the valve guides also being bad is very high then as well. So, in conclusion: pull the head and check it (you can reuse the head gasket and bolts so no big expense). |
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| Author: | moto-scoot [ Tue Nov 11, 2008 11:49 pm ] |
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MrMopar64 wrote: So, in conclusion: pull the head and check it (you can reuse the head gasket and bolts so no big expense).  the shop manual calls for new head bolts & gasket
tell us more!!!! |
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| Author: | Wobbly [ Wed Nov 12, 2008 12:48 am ] |
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moto-scoot wrote: MrMopar64 wrote: So, in conclusion: pull the head and check it (you can reuse the head gasket and bolts so no big expense). the shop manual calls for new head bolts & gaskettell us more!!!! Reusing torque-to-yield headbolts is a recipe for a warped head. |
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| Author: | Uffe [ Wed Nov 12, 2008 2:41 am ] |
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cerich wrote: timing belt?
I thought you were suggesting a rubbish cause when I read your post, but since you're actually right, I now applaud you 
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| Author: | cerich [ Wed Nov 12, 2008 11:17 am ] |
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Uffe wrote: cerich wrote: timing belt? I thought you were suggesting a rubbish cause when I read your post, but since you're actually right, I now applaud you Unfortunately I have had two timing belts break on me in the "lean" years when proper auto maintenance was unaffordable (I thought)....... taught me quite a bit however!
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| Author: | MrMopar64 [ Wed Nov 12, 2008 8:27 pm ] |
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Yes, I realize what the manual says...however, in lieu of that, with the multitudes of these engines that I've put together thus far for various purposes, not a single one has had a problem due to reusing of the head bolts. |
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| Author: | tjkj2002 [ Wed Nov 12, 2008 10:11 pm ] |
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MrMopar64 wrote: Yes, I realize what the manual says...however, in lieu of that, with the multitudes of these engines that I've put together thus far for various purposes, not a single one has had a problem due to reusing of the head bolts. Sure you can reuse headbolts but you did not mention anything about the head gasket which should never be reused on any engine.Once you crush it and release the pressure off of it it is no longer good even if you just put it on like 5 mins ago.
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| Author: | Wobbly [ Thu Nov 13, 2008 12:45 am ] |
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A description of torque-to yield (TTY) cylinder head bolts and reasons why they should not be reused are shown here: http://www.acl.co.nz/Tech/Torque%20To%2 ... dbolts.pdf |
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| Author: | Joe Romas [ Thu Nov 13, 2008 8:19 am ] |
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tjkj2002 wrote: Sure you can reuse headbolts but you did not mention anything about the head gasket which should never be reused on any engine.Once you crush it and release the pressure off of it it is no longer good even if you just put it on like 5 mins ago.
Here's what he wrote! So, in conclusion: pull the head and check it (you can reuse the head gasket and bolts so no big expense). I've reused them too. But in light of all the work involved I would also use new ones. |
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| Author: | kccrd [ Thu Nov 13, 2008 12:09 pm ] |
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It sound like to me he is talking about the serpentine belt and the idle tensioner pulley not the timing belt which is under a black cover is it not. The timing belt is not visible from just looking at the front of the engine. |
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| Author: | ATXKJ [ Thu Nov 13, 2008 12:35 pm ] |
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kccrd wrote: It sound like to me he is talking about the serpentine belt and the idle tensioner pulley not the timing belt which is under a black cover is it not. The timing belt is not visible from just looking at the front of the engine.
I thought that too and then I reread Sonix's comment and he distinguishes between Timing and Fan belts - so he is talking about timing. FYI - when I was younger and broke - I reused a lot of 'one time use' parts and most of the time there wasn't a problem - but I do know from experience that a Fiat twin cam can strip a timing belt (rubber) and take out all 8 valves in about 1 engine revolution - so if at all possible I'd check the valves and use new parts to put it back together - it's cheaper in the long run. |
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| Author: | onthehunt [ Fri Nov 14, 2008 6:30 am ] |
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I guess I just don't understand why anyone would reuse TTY head bolts. It's the equivalent of removing the timing belt at 100,000 miles for replacement and reinstalling it because it looked ok. |
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