Question about 1997 Isuzu Rodeo

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Rodao turbo desil

I have a problem with the turbo it dose not seam to be working
i have tryed under load and with out the gate look like its opening and the fins are spining but no power

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Did you see both sides of the turbo(exhaust and intake) to see if the fins were worn.

Posted on Aug 23, 2008

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Jeep grand cherokee V6 with Mb diesel engine losing power under acceleration trouble code description turbo boosting to low.


cute no year, no country stated then posts to usa forum.
we dont have this car. here. i think.
so are you asking how to diagnose turbo issues, on fixya
that be like asking how to do brain surgery on , Mr, PHIL
the PCM may see the boost too low for load and RPM.
so, that can be lots of things, besides a bad turbo cant spool.
even a stuck open waste gate.
or controls issues,
best is to get a complex car serviced, by someone that can work complex turbo diesels,

if serious on DIY, why not buy the book on the car
the FSM
then see the turbo section and do the tests stated there.
if that sounds hard, it is,

Jul 18, 2016 | Jeep Cars & Trucks

1 Answer

My saab 95 1.9 tid revs fine in neutral when put in drive and pull of there's no power won't go above 3000 ram any ideas


HI Derek.

There are a few possibilities that come to mind.
3K RPM is generally about the break-even point for when Turbo boost would kick in. There is a dump valve on the turbo system that opens up and vents the extra turbo pressure under high-rpm situations where the boost isn't needed - say high but steady speed on a freeway. If the dump valve system is malfunctioning, then that anticipated turbo run-up in power won't happen.

Revving fine when in neutral may not tell you much, other than that the engine can rev. The gating system will (or should) run differently under load - whether climbing a hill or accelerating, this is where you want the turbo boost to give you the extra power. THat's where the exhaust gate should stay shut, or mostly shut, to allow the turbo to force more air into the pistons.

You might want to check whether the APC (Automatic Performance Control) for the turbo has a separate fuse. (The name might be different on your model, I'm remembering from my 80s/90s era Saabs). If the fuse is blown, that could also lead to lame performance, especially as I'd imagine that the system would be built to fail or go to full open if the APC fails or loses power - that'd keep people from having run-away power that they can't manage.

Hoping this helps

D

Dec 08, 2015 | Saab Cars & Trucks

1 Answer

Thanks Terry. The car does not have full power.


Are you getting turbo boost pressure, waste gate may be open check waste gate actuator. Check that BOV is not stuck open you could clean with some throttle body cleaner. http://www.youtube.com/watch?v=govRsNtY8DM

Jun 14, 2015 | Cars & Trucks

1 Answer

Why dose my mazda 323 gtx over boost buzzer come on and boost cut


Sounds like the waste gate is having trouble. It could be what's called a "boost leak". the waste gate is most likely internal on a factory system. On the turbo, You'll see a small, vacuum pod looking thing with a linkage connected. Check to make sure the vacuum line/hose is properly connected and run that line to make sure it's not cracked some where.
Otherwise, it could be any coupler, connection on the pipes that carry the air from the turbo to the throttle body. Even a "loose clamp" can cause boost leaks. With over boost, it's most likely the waste gate.
Good luck. Hope ya find it.

Jul 05, 2014 | 1992 Mazda 323

1 Answer

Engine has no power under 3000 rpm


have a look at the EGR valve if its stuck open you loos all the turbo boost till the EGR valve closes
it could also be the turbo gate valve (wast gate) sticking open so the turbo cant cut in till its screeming then the gate shuts and the old girl picks up her skirts and go's,,, you may get away with just blanking off the EGR valves to try them out but the turbo is a different mater,,,

Dec 06, 2009 | 1992 Toyota Pickup

1 Answer

I need of a turbo waste gate on a 7.3 liter


Yes it will hurt the performance if yo do anything wire the waste gate shut. however the waste gate is on the inside of the turbo unless you have a special turbo that is not stock.

Sep 30, 2009 | 1997 Ford F250 SuperCab

2 Answers

Waste gate jammed on torbo on 2002 passat


go to alldata.diy.com pay $20.00 to get detailed info on the trubo, most likey the hose is wore out the rubber hose and will have to be replaced the waste gate keeps from over boosting the engine so if the hose is worn the clamps won't hold it any more. remove the hoses on the turbo wiggle the turbo shaft back and forth and end to end there should be no play in the shaft if there is you need a turbo kit and can buy one to rebuild it, look up bell turbos in oregon on the net and get his number he can tell you the cost of the kit and how to rebuild. If you have excessive oil on the rubber hose then you have a blown oil seal and it will need to be replaced. you are lucky at this pont and the kit will come with what you need to fix the waste gate as well, but dought the gate is the problem.

May 24, 2009 | 2002 Volkswagen Passat

1 Answer

It seems like the turbo does not kick in to full potential. Is there a way to open up the waste gate?


you need to check the pipes that connect the turbo to the exhaust manifoilds these are common to leek at the gasket if there is to large of a leak turbo wont work properly the waste gate on these motors is actuated with oil pressure if the turbo pedistal mounting seals are bad turbo wont work right ethier waste gate isn't adjustable

May 18, 2009 | 1997 Ford F350 Crew Cab

1 Answer

Saab 95 3.0 tid turbo with sticking waste gate


you have just described exactly the problem i'm having with my 3.0 tid, did you get it fixed in the end?? cheers, O

Mar 27, 2009 | 2005 Saab 9-2X

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