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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKIV-A4 TDIs (VE and PD)

VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

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Old October 13th, 2018, 23:00   #1
eli_jetta_tdi_06
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Join Date: Feb 2014
Location: santa clarita, ca
Fuel Economy: 44 & 36 & 28 avg (03, 06 and gas07)
Default No start!

Replaced engine head and reset timing, but am wondering if the ecm needs resetting as well?
Cranking but not starting.
My son and his friend had the timing off and it cranked then and didnít start either until we discovered the belt slipped about 4 teeth.



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Old October 13th, 2018, 23:25   #2
Dhawk12
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Location: Langley, Canada
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I am assuming that the slipped teeth was the reason you replaced the head and hasn't happened since. Check all the electrical connectors. I had a similar issue after replacing an engine and all it turned out to be was that the RPM/crank sensor connection wasn't quite plugged in just behind the oil filter on my ALH. Plugged it in and it fired right up. Also, if it is the ALH in your profile, check that the wire going to your injection pump is functional as without it the engine will crank but no fuel.

Last edited by Dhawk12; October 13th, 2018 at 23:28.
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Old October 14th, 2018, 02:02   #3
Tdijarhead
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If you cranked it with the belt four teeth off, you’ll need another head or at least valves and lifters. In other words a new head..again.

If you’ve just cranked it and it’s in time you need to bleed the air from the fuel system.

Is this the 03 or 06? Or something else? Maybe a Ford powerstroke? You haven’t identified what you’re working on.
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Old October 14th, 2018, 19:50   #4
eli_jetta_tdi_06
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Join Date: Feb 2014
Location: santa clarita, ca
Fuel Economy: 44 & 36 & 28 avg (03, 06 and gas07)
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Quote:
Originally Posted by Dhawk12 View Post
I am assuming that the slipped teeth was the reason you replaced the head and hasn't happened since. Check all the electrical connectors. I had a similar issue after replacing an engine and all it turned out to be was that the RPM/crank sensor connection wasn't quite plugged in just behind the oil filter on my ALH. Plugged it in and it fired right up. Also, if it is the ALH in your profile, check that the wire going to your injection pump is functional as without it the engine will crank but no fuel.


Finally got it going today!
The timing was a bugger to set and it turned out that 1 of the 3 was the injection pump timing was off as I was using the recessed portion next to the perfectly round hole that was the tdc setting! All day using the wrong tdc, until I noticed the round hole and remembered a post saying that a round drill bit 15/64Ē fit perfectly.
Camshaft lobes at the 10/2 am/pm position facing up and the tdc on the flywheel were the other 2 settings.
Feels good hearing it run again, starting to wonder if it would ever run again.



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Old October 14th, 2018, 19:52   #5
eli_jetta_tdi_06
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Join Date: Feb 2014
Location: santa clarita, ca
Fuel Economy: 44 & 36 & 28 avg (03, 06 and gas07)
Default

Quote:
Originally Posted by eli_jetta_tdi_06 View Post
Finally got it going today!
The timing was a bugger to set and it turned out that 1 of the 3 was the injection pump timing was off as I was using the recessed portion next to the perfectly round hole that was the tdc setting! All day using the wrong tdc, until I noticed the round hole and remembered a post saying that a round drill bit 15/64Ē fit perfectly.
Camshaft lobes at the 10/2 am/pm position facing up and the tdc on the flywheel were the other 2 settings.
Feels good hearing it run again, starting to wonder if it would ever run again.



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Itís running good except that itís dieseling or revving up uncontrollably until I gear it or shut it off!
Not sure why itís dieseling!


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Old October 14th, 2018, 19:54   #6
eli_jetta_tdi_06
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Join Date: Feb 2014
Location: santa clarita, ca
Fuel Economy: 44 & 36 & 28 avg (03, 06 and gas07)
Default

Quote:
Originally Posted by Tdijarhead View Post
If you cranked it with the belt four teeth off, youíll need another head or at least valves and lifters. In other words a new head..again.

If youíve just cranked it and itís in time you need to bleed the air from the fuel system.

Is this the 03 or 06? Or something else? Maybe a Ford powerstroke? You havenít identified what youíre working on.


Itís an 03 jetta tdi generation 4 (mk4).
Got it running today but itís dieseling now or revving up out of control!
Ever have that happen? Not sure whatís causing it!?


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Old October 14th, 2018, 21:34   #7
WildChild80
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First thing I'd check was IQ, it's the easiest, what does vcds say your IQ is at?



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Old Yesterday, 17:28   #8
eli_jetta_tdi_06
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Join Date: Feb 2014
Location: santa clarita, ca
Fuel Economy: 44 & 36 & 28 avg (03, 06 and gas07)
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First thing I'd check was IQ, it's the easiest, what does vcds say your IQ is at?



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I donít have vcds
Whatís iq? Intelligence quotient lol


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Old Yesterday, 17:29   #9
eli_jetta_tdi_06
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Join Date: Feb 2014
Location: santa clarita, ca
Fuel Economy: 44 & 36 & 28 avg (03, 06 and gas07)
Default

Quote:
Originally Posted by eli_jetta_tdi_06 View Post
I donít have vcds
Whatís iq? Intelligence quotient lol


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Can you set the idle anywhere?


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Old Yesterday, 17:33   #10
WildChild80
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Quote:
Originally Posted by eli_jetta_tdi_06 View Post
I donít have vcds
Whatís iq? Intelligence quotient lol


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Injection quotient, it's how much fuel you're giving the engine.

903 RPM is what it should be.

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