SAIP - Service Campaign (JLG) '10-'13 / Update: No mileage or year restrictions
10-30-18, 03:42 PM
#496
10-30-18, 04:33 PM
#497
Racer
10-31-18, 03:25 AM
#498
Super Moderator
Was it within the first minute after starting vehicle up?
It didn’t go into limp mode or maybe I didn’t really noticed.
It was definitely a bit sluggish to get up to speed but I was able to get on the freeway to about 50mph. Due to traffic, I couldn’t go faster before exit.
I noticed the MTS light as well and I’m probably the first CC/MTS mode with Secondary air pump code.
edit: I swapped out the filter before taking it in.
It was definitely a bit sluggish to get up to speed but I was able to get on the freeway to about 50mph. Due to traffic, I couldn’t go faster before exit.
I noticed the MTS light as well and I’m probably the first CC/MTS mode with Secondary air pump code.
edit: I swapped out the filter before taking it in.
10-31-18, 08:47 AM
#499
Racer
Yes, as soon as I started it up first thing in the morning after parked overnight. Usually the air pump turns on for 5-10sec at first start in the morning and quiet down. But it kept going on for a while and rpm stays higher longer than normal too.
I took a long 600miles road trip over the weekend too and was glad that it didn’t happen on the road.
I took a long 600miles road trip over the weekend too and was glad that it didn’t happen on the road.
10-31-18, 11:28 AM
#501
Racer
11-01-18, 03:51 AM
#502
Super Moderator
The P2442 error that bbqsoup got can also affect 14-16 models
https://www.clublexus.com/forums/gx-...l#post10109631
The TSB in thread above ....I believe modifies the programming of when air pump works as it addresses a freezing temp issue with air valves sticking open.
https://www.clublexus.com/forums/att...sb-0026-16.pdf
https://www.clublexus.com/forums/gx-...l#post10109631
The TSB in thread above ....I believe modifies the programming of when air pump works as it addresses a freezing temp issue with air valves sticking open.
https://www.clublexus.com/forums/att...sb-0026-16.pdf
11-01-18, 01:02 PM
#503
Racer
Just picked up the GX with a compliment car wash - it was pretty filthy LOL.
Like Romanova mentioned in a few posts up, 2 parts were replaced
17610-0C040 AIR PUMP ASSEMBLY
04006-37138 KIT AIR SWITCHING VALVES
I was able to look at the price list and it was $391 for labor, $$672 for the air pump and $418 for the valve kit.
On the written work order, it also mentioned code P1605 (rough idle) but I didn't see that when I pulled it with OBDII
One thing interesting is it said "REPLACE DEBRIS FILLED SECONDARY AIR PUMP". It looks like some debris may have gotten in there with the old plastic cap.
The new pump now has a black plastic cover.
Like Romanova mentioned in a few posts up, 2 parts were replaced
17610-0C040 AIR PUMP ASSEMBLY
04006-37138 KIT AIR SWITCHING VALVES
I was able to look at the price list and it was $391 for labor, $$672 for the air pump and $418 for the valve kit.
On the written work order, it also mentioned code P1605 (rough idle) but I didn't see that when I pulled it with OBDII
One thing interesting is it said "REPLACE DEBRIS FILLED SECONDARY AIR PUMP". It looks like some debris may have gotten in there with the old plastic cap.
The new pump now has a black plastic cover.
11-01-18, 02:42 PM
#504
Super Moderator
That's really odd.... I can't imagine anything getting past the UNI.
Did you remove the foam after putting the UNI on there?
Did you remove the foam after putting the UNI on there?
11-01-18, 02:47 PM
#505
Still highly recommend installing the bypass, even with the new setup. The pump changed but no indication the valves changed that can fail with a good pump so if you want a guarantee of 100k miles or more, install the bypass and done...
Lifetime warranty for the bypass and no more Lexus warranty for the system after replacement.
Lifetime warranty for the bypass and no more Lexus warranty for the system after replacement.
The following users liked this post:
Acrad (11-01-18)
11-01-18, 03:04 PM
#506
Racer
The unifilter is pretty dirt now.
11-02-18, 01:42 PM
#507
Super Moderator
Interesting about that P1605 error. I saw that as a old historical code when I did a full Techstream health check a few weeks back. No idea when that occurred. I reset code and will check again in a few weeks.
11-02-18, 01:58 PM
#508
Racer
A few days before the P2442 code, I did a road trip and I did noticed it was a big laggish going up hill and I have to use 3rd gear very often. I didn't really pay attention and thought it was just hill climbing normally. But I remember have to shift gear more than usually on one stretch of climb a few miles from home at 65mph. It could be that the issue had started around there but not enough to get the lights kick off.
The truck starts up seems a bit quieter now, before the pump can get pretty loud when cold.
11-02-18, 04:31 PM
#509
Super Moderator
If it shows up in TS again I'll double check with Fusion to make sure it is showing up there as well.
I wonder if an open air valve like your error indicated can become the equivalent of a bad exhaust leak?
Exhaust manifold leaks like where this is plumbed in at will cause a loss of power IIRC.
I wonder if an open air valve like your error indicated can become the equivalent of a bad exhaust leak?
Exhaust manifold leaks like where this is plumbed in at will cause a loss of power IIRC.
11-02-18, 07:33 PM
#510
Racer
If it shows up in TS again I'll double check with Fusion to make sure it is showing up there as well.
I wonder if an open air valve like your error indicated can become the equivalent of a bad exhaust leak?
Exhaust manifold leaks like where this is plumbed in at will cause a loss of power IIRC.
I wonder if an open air valve like your error indicated can become the equivalent of a bad exhaust leak?
Exhaust manifold leaks like where this is plumbed in at will cause a loss of power IIRC.