Author Topic: Gti mk5 not starting or bumping. Help!!  (Read 364 times)

Offline Chrisl85

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Gti mk5 not starting or bumping. Help!!
« on: August 13, 2017, 03:22:36 PM »
Was running fine, engine management light came on still fine. Turned engine off then wouldn't start again or jump start, anyone had this before??

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Offline neilw

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Re: Gti mk5 not starting or bumping. Help!!
« Reply #1 on: August 13, 2017, 05:08:10 PM »
Is it turning over?

If not it, it'll be an electrical issue or immobiliser. If it is turning over its probably a fueling or spark issue.

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Offline Chrisl85

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Re: Gti mk5 not starting or bumping. Help!!
« Reply #2 on: August 13, 2017, 05:08:42 PM »
Mechanic says it's got spark and fuel

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Offline Chrisl85

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Re: Gti mk5 not starting or bumping. Help!!
« Reply #3 on: August 13, 2017, 05:12:28 PM »
Mechanic says it's got spark and fuel

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Also says that it has no compression

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Offline r5gtt

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Re: Gti mk5 not starting or bumping. Help!!
« Reply #4 on: August 14, 2017, 01:33:47 AM »
Timing belt snapped?

Offline Chrisl85

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Re: Gti mk5 not starting or bumping. Help!!
« Reply #5 on: August 14, 2017, 06:19:28 AM »
Timing belt snapped?
Belts fine

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Offline Richie-VRS

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Re: Gti mk5 not starting or bumping. Help!!
« Reply #6 on: August 14, 2017, 08:55:34 AM »
Timing chain tensioner at gearbox end failed and bent the valves? What was the engine management code?

Offline Chrisl85

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Re: Gti mk5 not starting or bumping. Help!!
« Reply #7 on: August 14, 2017, 09:25:21 AM »
Yuck not liking the sound of that at all.. not sure which codes it brought up

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Re: Gti mk5 not starting or bumping. Help!!
« Reply #8 on: August 14, 2017, 09:31:57 AM »
Vaguer than vague.  Just let your mechanic deal with it.  It's f'cked.
 
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Offline Chrisl85

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Re: Gti mk5 not starting or bumping. Help!!
« Reply #9 on: August 14, 2017, 09:33:30 AM »
I'm going to. He is putting a compression tester on it today and going from there. He did mention that chain as a possible culprit this sounds complicated and expensive

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Re: Gti mk5 not starting or bumping. Help!!
« Reply #10 on: August 14, 2017, 11:15:25 AM »
I thought he already established there was zero compression?

If the starter motor tone is a constant whirring tone, either the belt or chain has snapped.   If there's a bit of the normal "Whuh whuh whuh...." noise on cranking, at least one cylinder still has compression.
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Offline r5gtt

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Re: Gti mk5 not starting or bumping. Help!!
« Reply #11 on: August 14, 2017, 10:57:49 PM »
I'm going to. He is putting a compression tester on it today and going from there. He did mention that chain as a possible culprit this sounds complicated and expensive

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its not cheap and if valves are bent a few on those too!.

Offline maxamplitude10

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Re: Gti mk5 not starting or bumping. Help!!
« Reply #12 on: August 15, 2017, 09:17:40 AM »
Ask your mechanic what "chain" he is referring too?
The engine must be turning over to conduct a compression test right? If this is the case we can assume the engine drive belt is still in tact?
More precise information required for further assistance I'm afraid, is the mechanic a VW specialist?
Tx
Dean