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why would my jimny lose compression sometimes?
06 Feb 2014 21:13 #103707
by jamesey
why would my jimny lose compression sometimes? was created by jamesey
hi this morning i got into my 2002 dohc jimny and turned the key it turned over nomally and fires for about 2 seconds then died when i turned it over again it sounded really weird as though it was turning over without the timing chain on (no compression sound) the only time ive ever heard this sound it when my laguna timing belt snapped , i ended up walking to work bahhh
when i got home i tried the car again and it turned over and turned over for ages before not willingly coughing into life , ive run the car for 20 miles without a hiccup starting it up and turning it off , its done this before about 6 months ago any ides what to try?
first im thinking the timing chain has slipped but if its starting it cant be?
when i got home i tried the car again and it turned over and turned over for ages before not willingly coughing into life , ive run the car for 20 miles without a hiccup starting it up and turning it off , its done this before about 6 months ago any ides what to try?
first im thinking the timing chain has slipped but if its starting it cant be?
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07 Feb 2014 22:16 #103812
by kirkynut
The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.
My Jimny Thread Here: www.bigjimny.com/index.php/forum/8-my-ji...on-continues?start=0
Replied by kirkynut on topic why would my jimny lose compression sometimes?
Is the starter turning the engine over or is the starter not engaging and is just spinning it's self? The drive went on my Jimn's starter a few weeks ago & I had it rebuilt with a new drive. It sounds a little like it's spinning the engine over without compression but sometimes catches so turns the engine over, making it seem like you say in that it had no compression and then it returned when it was the starter all along.
I suppose you could get someone else to turn the key while you look at the engine and see if it's actually turning over when it makes the noise.
Kirkynut
I suppose you could get someone else to turn the key while you look at the engine and see if it's actually turning over when it makes the noise.
Kirkynut
The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.
My Jimny Thread Here: www.bigjimny.com/index.php/forum/8-my-ji...on-continues?start=0
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07 Feb 2014 22:21 #103814
by robs5230
standard jimny - for now
Replied by robs5230 on topic why would my jimny lose compression sometimes?
yeah that sounds about right kirkynut . replaced my starter about 4 weeks ago. sometimes it would sometimes it wouldn't ( not ideal offroading ).
seems like what jamesy is experiencing. starter failing to engage.
seems like what jamesy is experiencing. starter failing to engage.
standard jimny - for now
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08 Feb 2014 16:40 #103893
by jamesey
Replied by jamesey on topic why would my jimny lose compression sometimes?
i suppose it could be that ive never seen if it actually turns the belts round?
it does start the car eventually if you keep cranking but it really struggles because of the unused fuel in the system so saying that i bet the engine is turning?
it does start the car eventually if you keep cranking but it really struggles because of the unused fuel in the system so saying that i bet the engine is turning?
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- colin_y
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07 Oct 2014 11:41 #125928
by colin_y
Replied by colin_y on topic why would my jimny lose compression sometimes?
Mine has done this. It is getting flooded and the fuel is washing the bores and pistons. This can lead to the rings gliding up the bores instead of sealing. New plugs, especially if they are the iridium ones may help, or replace the coolant temp sensor (it may be over fuelling).
When it restarted it would have gone onto one cylinder, than another and then another finally coming to life?
Foot flat on the floor?
If so sounds familiar
When it restarted it would have gone onto one cylinder, than another and then another finally coming to life?
Foot flat on the floor?
If so sounds familiar
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