markevs Posted August 20, 2009 Report Posted August 20, 2009 Hi folks, im hoping somebody can help me i own a galaxy Tdi (90bhp) 1997 im looking for pointers in to why it wont run First off needed set of heater plugs as it was getting hard to startthose have been replaced secondly after fitting heater plugs it wouldnt start but was chuffing lots of smoke whilst trying to fire so was advised it was fuel problem and more likely to be the INJECTOR pump so had that replaced and timed up and still didnt go so next was new Injectore (set of 4) and fitted and bled etc and still dont go but will go with sniff of brake cleaner in the air intake will start and run (very lumpy ) but smokes Heavy for a little whilebut if you switch the ignition off it WONT start again unless you give it more bake cleaner !! any body out there in the know or had thias problem and what i can do to cure it #OH we did a compression test on it this morning on all 4 cylinders and the reading for each was 500 bar !!! im guessing at electrical probs now eg immobilizer we have power probed the injector pump at the stop selonoid and all seams right there please some body help the wife loves the car we have had it for 6 years of trouble free motoring and wont give up on her she only got 80,000 miles on her and its a "S" reg Quote
Mirez Posted August 20, 2009 Report Posted August 20, 2009 What about the basics? Fuel filter? Air Filter? Quote
big_kev Posted August 20, 2009 Report Posted August 20, 2009 Forget about the immobiliser, its not that ! Its a fuel and/or air problem....( assuming no severe mechanical failure ). As Mirez says start with the most likely and easiest to check. Quote
seatkid Posted August 20, 2009 Report Posted August 20, 2009 (edited) OH we did a compression test on it this morning on all 4 cylinders and the reading for each was 500 bar !!! :) Ouch!!! Really? :) I don't believe you...... ;) Starting with brake cleaner is a surefire way to knacker your engine in record time...... White smoke could be a timing problem, possibly the infamous bottom crankshaft loose timing sproket problem. Edited August 20, 2009 by seatkid Quote
turk90210 Posted August 21, 2009 Report Posted August 21, 2009 I agree with fuel /air fault,in the fact it might not be injecting at the correct time, when the pump was replaced did/was it timed up properly, its very common for people to get the timing pin in the wrong place and set the timing wrong, do you have vag.com or know someone with it as you can check the timing with it Quote
markevs Posted August 21, 2009 Author Report Posted August 21, 2009 What about the basics? Fuel filter? Air Filter? Fuel filter changed and Air filter too these were the first concerns Quote
markevs Posted August 21, 2009 Author Report Posted August 21, 2009 OH we did a compression test on it this morning on all 4 cylinders and the reading for each was 500 bar !!! :) Ouch!!! Really? :) I don't believe you...... ;) Starting with brake cleaner is a surefire way to knacker your engine in record time...... White smoke could be a timing problem, possibly the infamous bottom crankshaft loose timing sproket problem. Yes was checked by my technician at the garage and yess 500 was reading for all cylinders !!was only given a tiny bit of cleaner to start (to get it firing) Timing for injector pum was done by a mechanic with 15yrs under his belt also bottom crank sensor was replaced when it was fully timed up Also NON return valves fitted inline of fuel to make sure and eliminate air in fuel etc Quote
markevs Posted August 21, 2009 Author Report Posted August 21, 2009 Forget about the immobiliser, its not that ! Its a fuel and/or air problem....( assuming no severe mechanical failure ). As Mirez says start with the most likely and easiest to check. All basics done all compression done i have read a post about RELAY number 30 does any one know the location of it and can confirm that it is an imobilizer relay ? Quote
markevs Posted August 21, 2009 Author Report Posted August 21, 2009 I agree with fuel /air fault,in the fact it might not be injecting at the correct time, when the pump was replaced did/was it timed up properly, its very common for people to get the timing pin in the wrong place and set the timing wrong, do you have vag.com or know someone with it as you can check the timing with it Been plugged in to the volkswagen Diagnostics machine and only fault comes up is the imobilizer fault is that the Key transponder or the PUMP imobilizer but pump has been checked for power so i trying to rule it out any help or thoughts appreciated Quote
turk90210 Posted August 21, 2009 Report Posted August 21, 2009 Markevs Not too sure what you mean by the volkawagon diagnostic machine as I wasn't refering to getting any diagnostic codes although it does help. The immobilizer code you have could just be that the key was not autherized so the ecu locked it out until the correct one was used, I sometimes get this but just take the key out completely and try again. The diagnostic program I am refering to is called Vag.Com or VCDS is its new name. Within the program you are able to verify the timing is correct with the engine running. I assume with the pump replacement and other work you have done that the timing belt has been disturbed/replaced (due around the 80k mark), was it locked up properly with the correct timing pins or was it a paint and pray it doesn't move jobI appriciate your mechanic has 15yrs experience but is some of it on the vw diesel engines, i have seen mechanics with 25yrs experience get caught out by this as there is sometimes a small hole the timing pin locates into that is incorrect and if used sends all the timing for the pump out giving symptoms similar if not identical to yours some have even used the wrong mark on the flywheel to set the crank position. For what it is I would check the timing again making double sure it is set up correctly the reason being 1 smoke from exhaust but not running - usually indicates fuel is entering the cylinders but not firing- main culprits are poor glow plugs or incorrect timing, poor compressions 2 engine runs (albeit rough ) if brake cleaner used to start and smokes - indicates that all the basics are there, ie immobilizer ok, fuel injecting, relays ok ect.- faults could be glow plug (but only needed when cold) injection timing, blocked airways ect from what you have posted to have changed so far I think it is safe to say its def not the glow plugs as they are only used when cold, your prob persists when warm, not the injection pump itself as new (unless faulty) airways are clear fuel ok (again as it runs with the initial help) compressions ok, which for me brings us back to the engine/injection timingSorry to go over old ground but lets start back at the basics and make sure they are right first as we know for sure that these have been disturbed. Quote
seatkid Posted August 21, 2009 Report Posted August 21, 2009 Yes was checked by my technician at the garage and yess 500 was reading for all cylinders !! Give over, 500 bar = 7350psi !!! Nobody makes a tester that works at that pressure. Quote
Mirez Posted August 21, 2009 Report Posted August 21, 2009 (edited) Yes was checked by my technician at the garage and yess 500 was reading for all cylinders !! Give over, 500 bar = 7350psi !!! Nobody makes a tester that works at that pressure. He could probably actually damage the gasket if it had been tested to that pressure, I dont know the gal's compression ratio off the top of me head but average diesel compression is 270 > 400 PSI or about 19 > 28 Bar. Edited August 21, 2009 by Mirez Quote
zorgman Posted August 23, 2009 Report Posted August 23, 2009 its 500 psi his meaning for gods sake plus this thread is in the wrong place any mods put it into the tech section Quote
sepulchrave Posted August 23, 2009 Report Posted August 23, 2009 ...White smoke could be a timing problem, possibly the infamous bottom crankshaft loose timing sproket problem. This right here is the numero uno most likely cause of the issues you are having with your engine. Unless the valvetrain timing has been checked using a DTI without reference to the timing marks this is very difficult to diagnose, and you really do need a GOOD mechanic with access to the valve lift @ TDC data from VW to confirm the timing really is correct. Remember I'm not referring to the pump timing here, but the camshaft timing. Quote
adrian Lacusta Posted September 13, 2009 Report Posted September 13, 2009 Markevs Not too sure what you mean by the volkawagon diagnostic machine as I wasn't refering to getting any diagnostic codes although it does help. The immobilizer code you have could just be that the key was not autherized so the ecu locked it out until the correct one was used, I sometimes get this but just take the key out completely and try again. The diagnostic program I am refering to is called Vag.Com or VCDS is its new name. Within the program you are able to verify the timing is correct with the engine running. I assume with the pump replacement and other work you have done that the timing belt has been disturbed/replaced (due around the 80k mark), was it locked up properly with the correct timing pins or was it a paint and pray it doesn't move jobI appriciate your mechanic has 15yrs experience but is some of it on the vw diesel engines, i have seen mechanics with 25yrs experience get caught out by this as there is sometimes a small hole the timing pin locates into that is incorrect and if used sends all the timing for the pump out giving symptoms similar if not identical to yours some have even used the wrong mark on the flywheel to set the crank position. For what it is I would check the timing again making double sure it is set up correctly the reason being 1 smoke from exhaust but not running - usually indicates fuel is entering the cylinders but not firing- main culprits are poor glow plugs or incorrect timing, poor compressions 2 engine runs (albeit rough ) if brake cleaner used to start and smokes - indicates that all the basics are there, ie immobilizer ok, fuel injecting, relays ok ect.- faults could be glow plug (but only needed when cold) injection timing, blocked airways ect from what you have posted to have changed so far I think it is safe to say its def not the glow plugs as they are only used when cold, your prob persists when warm, not the injection pump itself as new (unless faulty) airways are clear fuel ok (again as it runs with the initial help) compressions ok, which for me brings us back to the engine/injection timingSorry to go over old ground but lets start back at the basics and make sure they are right first as we know for sure that these have been disturbed. i have the same problem! I just unplug the battery for 30 min!!!!! For my is work!!!!!!!! :D Quote
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