Author Topic: changed by-pass valve no big result  (Read 3994 times)

Offline m4nesh

  • GTI forum regular
  • ***
  • Posts: 238
changed by-pass valve no big result
« on: 27 November 2003, 19:16 »

hello all

went to VAG and brought a by-pass valve kit.  Installed it, correctly, and toped up coolant and ran engine on idle till fan kicked in twice and then went for a nice long rip and got home & topped up coolant again. Job Done

Only a moderate change in heat temperature coming out :'(...any suggestions because i've flushed system, forward and reverse flushed the matrix, changed the by-pass valve and now im sick and tired of the bloody car...

Any suggestions....my thinking is matix or heated gloves ;)

golfvr6

  • Guest
Re:changed by-pass valve no big result
« Reply #1 on: 27 November 2003, 23:58 »
The matrix may be partially blocked. Have you tried some decent flusher stuff in the coolant system?

Offline rustynuts

  • Here all the time
  • ****
  • Posts: 314
  • God is a DJ
Re:changed by-pass valve no big result
« Reply #2 on: 28 November 2003, 00:09 »
Bloody valves, they are poo. Just whip em off and have straight through pipes and hope your matrix does not blow up :o

Offline m4nesh

  • GTI forum regular
  • ***
  • Posts: 238
Re:changed by-pass valve no big result
« Reply #3 on: 28 November 2003, 08:12 »
Bloody valves, they are poo. Just whip em off and have straight through pipes and hope your matrix does not blow up :o

rustynuts - LOL u is a cowboy :D

golfvr6 - i have flushed the matrix forward and reverse flushed it with some serious pressure.....so u think flush addidtive will help?

Offline m4nesh

  • GTI forum regular
  • ***
  • Posts: 238
Re:changed by-pass valve no big result
« Reply #4 on: 28 November 2003, 08:35 »

Hello

golfvr6 - what do u think about this idea?

When you push the heater setting to hot on the dash, it pulls a wire that in turn changes the blower unit to make the heat come out hot.  This heater adjustment setting device, do you think that it needs to be corrected?

Any other suggestions would be greatly appreciated!!

Cheers

Manesh (shiver - shiver!!) ???

golfvr6

  • Guest
Re:changed by-pass valve no big result
« Reply #5 on: 28 November 2003, 13:22 »
Try the coolant flusher first.

Offline VW2010

  • Not said much yet
  • **
  • Posts: 42
Re:changed by-pass valve no big result
« Reply #6 on: 28 November 2003, 13:23 »
I have exactly the same problem (I've posted this under "incorrectly fitted by-pass valve).

I've noticed that the hose going into the metal valve gets hot but the hose going from that valve into the baulkhead (matrix) is not really getting hot, do you think I may have a faulty new by-pass valve?


Offline m4nesh

  • GTI forum regular
  • ***
  • Posts: 238
Re:changed by-pass valve no big result
« Reply #7 on: 28 November 2003, 14:09 »

I have just been into the forum named garage and somebody was talking about the heat gauge.  My heat gauge sits at about 1/3 of the way doesn't get to half way, when i does then the fan kicks in, oil temp is at a constant 90 to 100 all of the time

Is  that normal for the gauge to be at 1/3?

From this can you tell if my thermostat has gone?

golfvr6

  • Guest
Re:changed by-pass valve no big result
« Reply #8 on: 28 November 2003, 14:25 »
How long does it take to get up to operating temp? should be about 5-10 mins if that.

Offline m4nesh

  • GTI forum regular
  • ***
  • Posts: 238
Re:changed by-pass valve no big result
« Reply #9 on: 28 November 2003, 15:01 »

about 10-15 mins usually...... ??? Should I change the thermostat then?