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Haven't done it before but suppose I can inspect one end of it by pulling off the EGR valve. Would have to do that anyway if the whole TB assembly needs cleaning.I’d say the cleaning is your call - can you inspect it? How hard is it to clean?
Haven't done it before but suppose I can inspect one end of it by pulling off the EGR valve. Would have to do that anyway if the whole TB assembly needs cleaning.
Pulling out the assembly seems simple enough but I'm always leery of unintended consequences when doing something for the first time. Little did he know...
I wish I had that advice three days ago. I am working on my 02 eb 5.4 andIf you can easily get the EGR off - the pintle end should tell if the passageway is clogged with carbon.
Good luck - let us know what you do.
Never had codes before and mine is just as dirty looking, worse even back at the EGR valve.Let me restate the question...
I've read a lot in this forum and elsewhere about P0401(Insufficient EGR Flow) in Gen1's. Consensus is the first fix attempted should be to clean the throttle body and its passageway to the EGR valve.
Is it worthwhile to clean the passageway now even though there's no trouble indicated?
I did not have any codes but had a loss in power. Replaced the EGR valve and Cleaned the intake manifold as deep as I was able to go without removing it. Full power restored to my ‘98 Expy. Your throttle intake looks bad I would clean it.Let me restate the question...
I've read a lot in this forum and elsewhere about P0401(Insufficient EGR Flow) in Gen1's. Consensus is the first fix attempted should be to clean the throttle body and its passageway to the EGR valve.
Is it worthwhile to clean the passageway now even though there's no trouble indicated?
Gotta admit, I had to look up what a pintle is, learned it's sometimes paired to a gudgeon. Still not exactly sure so I'm posting multiple pictures.If you can easily get the EGR off - the pintle end should tell if the passageway is clogged with carbon.
Gotta admit, I had to look up what a pintle is, learned it's sometimes paired to a gudgeon. Still not exactly sure so I'm posting multiple pictures.
The EGR came off easier than expected, nothing was corroded in place. It also looks way better than expected considering how bad the TB intake looked before it was cleaned. I'm wondering now if the best course of action is to just reinstall it.