Turbo warning light

Submitted: Friday, Aug 27, 2004 at 19:42

ThreadID: 15873 Views:6666 Replies:6 FollowUps:6

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Member - Nick (TAS)

Evening All, one of my mates have got a 92 80 Series CruiserT/D and just recently the Turbo warning light has been flickering.This happens at about 2500rpm,flickers a bit then goes off when the gear change has bee made, then flickering on again at 2500rpm.Its done 177000kms and is fitted with a factory Turbo.No noise is evident.Whats the light indicating?
Thanks All. Nick

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Reply By: mr diamond - Friday, Aug 27, 2004 at 19:53

Friday, Aug 27, 2004 at 19:53

its not the light that comes on when the turbo boost kicks in is it?

AnswerID: 74290

Follow Up By: Member - Nick (TAS) - Friday, Aug 27, 2004 at 21:26

Friday, Aug 27, 2004 at 21:26

Apparently its only just started doing it and owners manual says consult your friendly Toyota dealer.

FollowupID: 334247

Reply By: Kiwi Ray - Friday, Aug 27, 2004 at 20:23

Friday, Aug 27, 2004 at 20:23

Hi Nick
Some L/Cs have 2 lights ( red and green ) some just have one ( green ) which one do you have?
then I can tell you what they indicate
Ray

AnswerID: 74296

Follow Up By: Member - Nick (TAS) - Friday, Aug 27, 2004 at 21:24

Friday, Aug 27, 2004 at 21:24

From what he told me its a red light.

FollowupID: 334246

Reply By: stitch - Friday, Aug 27, 2004 at 21:53

Friday, Aug 27, 2004 at 21:53

Nick,
My 80 series has both red and green LED's the green lighting up with normal boost pressures, the red light indicates overboosting which long term can destroy an engine. I would say the turbos waste-gate may either need adjustment or is malfunctioning, not relieving the high pressure larger turbos can generate... hope this helps a little.
Mark.

AnswerID: 74315

Follow Up By: Member - Nick (TAS) - Friday, Aug 27, 2004 at 22:26

Friday, Aug 27, 2004 at 22:26

Thanks stitch,I'll mention it to him tommorrow.

FollowupID: 334250

Reply By: Member - DOZER- Saturday, Aug 28, 2004 at 14:58

Saturday, Aug 28, 2004 at 14:58

Hi
The alt plug can cause this...pull it off and spray it with electrical cleaner...
Andrew

AnswerID: 74353

Follow Up By: cokeaddict - Saturday, Aug 28, 2004 at 16:52

Saturday, Aug 28, 2004 at 16:52

Hi Andrew,
Thats why i enjoy comming in here....that piece of info u added probably is the cause. If he takes your advice he will have saved himself a few quid as the dealer would NOT have told him that was the problem now would they.... assuming it was.

Love this forum
Cheers Angelo

FollowupID: 334277

Follow Up By: Member - DOZER- Saturday, Aug 28, 2004 at 18:18

Saturday, Aug 28, 2004 at 18:18

Thanks Angelo
A friend had his alt reconditioned twice with silver reco paint, and the third electrical guru said yeah mate i know what it is..2 minutes and no charge, and he was off on holidays again $4-500 lighter from the first 2 guys.
The earlier hdt had a design problem where the wiring harness was anchored to the body too close to the motor, and the vibs from the motor make the plug contacts loose too. Sometimes it is full of mud aswell, but most times the contacts can be squeezed a little and the last plastic plug to the body pried off, and the problem goes away for good.
The reason it is the cause is when you turn the ignition to on (b4 starting) all these lights come on to show you they work. They are actually getting earth thru the regulator in the alt while it is not charging.
Andrew

FollowupID: 334282

Follow Up By: Member - Nick (TAS) - Tuesday, Aug 31, 2004 at 18:09

Tuesday, Aug 31, 2004 at 18:09

Spot on DOZER,his misses took it in to be checked out today while in town,Turbo checked out fine and found it was the Alt. causing it to come on.
Cheers Nick

FollowupID: 334569

Reply By: Kiwi Ray - Saturday, Aug 28, 2004 at 17:42

Saturday, Aug 28, 2004 at 17:42

Hi Nick,

The red light normally indiactes low or excessive pressure - it should not be on under normal running.

With the ignition on and the engine not running the red light is normally on - it shoukld go off a few secods after the engined is started. The previous Post that mentioned the alternator, if the fault was connected with the alternator, other wrning lights will noramlly be on. If you have a red warning light you normally have a green one as well ( indiactes the turbo is working prescribed limits) which usually remains on while driving the vehicle. It may go off on a long down hill run but the red light should not come on.

I would suggest that you fit a test guage to the turbo cross over pipe and take the vehickle for a run and compare the pressures against the data in the work shop mannual.

Ray

AnswerID: 74364