Thread: 1HD tojo crap performance

My understanding is it's carried across a service or two but I'll confirm that on Wednesday when I get back.
It's has 'something' replaced for being down on power a month or so ago, my boss said something 'like a regulator'.
It spends plenty of time on the highway, I don't baby any of the vehicles as company policy is to idle the vehicles to warm them up, which is not an ideal practice. They also spend lots of time towing.
Its had issues since as long as I can remember, had another worker come in asking if it was usually bad on fuel or down on power, suspecting crap fuel.
When I first started I was told it had never been right after the top end rebuild.
I'll have a look at it if I get a chance, it may be the vehicle going in for a service on Wednesday but either way I'll check out what it's had done and when.

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Disregard- confusion on my part with 1HZ and 1HD

Give it an Italian Tune up.

Originally Posted by cafe latte

Fore sure check the strainer it is in the fuel in or out pipe cant remember which, remove the banjo and you will find it. I have seen them full of crud, car works, but sllowww.
Chris

I was thinking the same thing.
I've cleaned gauze filters in the fuel banjo's for the supply line into the lift pump on older diesels.

PS after another read of OP.
If it's only done it since the head was off get the cam/crank/fuel pump timing checked.

Comments about highway runs, Italian tune ups....
When I said I don't baby it...

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Originally Posted by Disco Muppet

My understanding is it's carried across a service or two but I'll confirm that on Wednesday when I get back.
It's has 'something' replaced for being down on power a month or so ago, my boss said something 'like a regulator'.
It spends plenty of time on the highway, I don't baby any of the vehicles as company policy is to idle the vehicles to warm them up, which is not an ideal practice. They also spend lots of time towing.
Its had issues since as long as I can remember, had another worker come in asking if it was usually bad on fuel or down on power, suspecting crap fuel.
When I first started I was told it had never been right after the top end rebuild.
I'll have a look at it if I get a chance, it may be the vehicle going in for a service on Wednesday but either way I'll check out what it's had done and when.

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Valve Timing perhaps.
Its common rail I'm guessing -so injection timing is electronic.

The 1HD isn't common rail I don't think, direct injection

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These have electronic injection pumps and yes they can be mistimedd during belt fitting. Also can suffer from advance problems within the pump so don't rule that out... if it has had a set of injectors then they would want to have been genuine toyota not reco ones... they are very particular.

Jc