What makes the Check Engine light come on on a Lexus GX470?
2005-2009 Lexus GX470 and 2006-2007 Lexus LX470 SUVs have a rare (but not albeit unheard of) problem with their secondary air injection system that illuminates the check engine light. Often the truck is down on power or the vehicle makes a booming sound after it is started.
How to reset the Check Engine light on a Lexus?
You have to reset Lexus check engine light by going to Clear Codes menu after the problem has been resolved. Fault codes may give you a very good idea of what it is wrong with your car, we recommend you get a professional auto mechanic to properly diagnose the check engine light before you proceed with any part replacements.
Are there Check Engine codes for the LX470?
The check engine codes that are related to this concern are the following: It is important to note that this condition is in no way, shape or form related to the later issues with the GX460 and its secondary air injection system. It is a completely different system than the GX470. You can read more about that by clicking this enormous hyperlink.
What to do if your Lexus IS losing power?
If you have the time to spare, let it air dry for a couple of days to try to eliminate any water. The other option is to start pulling out the spark plugs; water likes to collect in the spark plug holes and will need to be dried out. Driving with wet spark plugs will cause them to burn out and could possibly cause an engine fire.
What does the Check Engine light on a Lexus mean?
It could mean a loose gas cap or a more tasking problem like bad spark plugs, bad VVT solenoid, catalytic converter or even transmission issues. For you to identify the Lexus check engine light, you can use an OBD2 scanner to detect the fault code stored in the OBD computer.
Can a Lexus GX470 GX 470 be fixed?
However things break and need to be fixed or replaced with those constraints in mind including automobile headaches.
How do you check the oil level in a Lexus?
Check engine oil level by turning off the engine and waiting for at least 15 minutes before opening the hood. After this, pull out the dipstick and wipe it clean. Reinsert the dipstick and remove it again to take the reading of the engine oil level.
How do you reset the VSC light on a Lexus?
Resetting the VSC light shouldn’t be hard if you have a scan gauge. You can switch on the engine to ACC and long-press the odometer so it reads the actual mileage. Then completely switch off the engine and turn it on again but this time pressing the odometer button. Doing this should help clear the VSC light.
How does secondary air injection work on a GX470?
The GX470/LX470 secondary air injection system adds fresh air to the exhaust (upstream of the catalysts) during a cold start. The engine runs exceptionally rich upon cold start and the added fresh air helps burn residual fuel.
What was the bank 2 code on the GX470?
The above GX470 had a code for a bank 2 valve stuck open and made a booming noise when started. Here’s a fin sticking the valve open: Note that all of the above parts cannot be disassembled for inspection as seen above.
2005-2009 Lexus GX470 and 2006-2007 Lexus LX470 SUVs have a rare (but not albeit unheard of) problem with their secondary air injection system that illuminates the check engine light. Often the truck is down on power or the vehicle makes a booming sound after it is started.
What are the most common problems with the Lexus GX 470?
Based on the complaints compiled via CarComplaints.com, the 2006 model year for the Lexus 470 has the most overall issues. One of the common problems owners faced was a secondary air injection failure, costing repair bills in excess of $1,400.
The check engine codes that are related to this concern are the following: It is important to note that this condition is in no way, shape or form related to the later issues with the GX460 and its secondary air injection system. It is a completely different system than the GX470. You can read more about that by clicking this enormous hyperlink.
Is the Lexus GX 470 the same as the Toyota 4Runner?
If you like the GX 470 models, you probably have an appreciation for the body-on-frame design that mimics that of the Toyota 4Runner. While they don’t make the GX 470 anymore, the Lexus GX 460 will offer the same design.
The GX470/LX470 secondary air injection system adds fresh air to the exhaust (upstream of the catalysts) during a cold start. The engine runs exceptionally rich upon cold start and the added fresh air helps burn residual fuel.
Where are the back valves on a GX470?
If you can’t spot the back valves in the above: they are hidden underneath a dual coolant/air crossover pipe also located under the engine’s main rear harness loom (which is plastic and cumbersome). The cause of the above check engine codes are the pump that distributes debris downstream into the valves.
The above GX470 had a code for a bank 2 valve stuck open and made a booming noise when started. Here’s a fin sticking the valve open: Note that all of the above parts cannot be disassembled for inspection as seen above.
How to change the air intake pump on a Lexus gx460?
Install the top cover with the new Uni-Filter on it back on the Air Intake Pump, replace center screw using the T25 wrench. Toss the removed Mushroom cap and foam chuck, they are no longer needed. 7. DONE! Go explore now with your GX460. Photo of the Metal-tech 4×4, 2012 Lexus GX460 in its natural habitat.
Where is the air pump on a GX470?
The system is located entirely under the intake manifold and is hard to access. Here’s the system’s pump and three valves exposed, intake manifold off: If you can’t spot the back valves in the above: they are hidden underneath a dual coolant/air crossover pipe also located under the engine’s main rear harness loom (which is plastic and cumbersome).
Are there any recalls on the Lexus GX 460?
Lexus’ numbers for this recall are JLI, JLJ, and JLK. Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2017-2018 Toyota 4Runner and Tundra, 2018 Toyota Highlander, RAV4 and Lexus GX460 and 2017 Toyota Sienna and Tacoma vehicles. These vehicles may have incorrect load carrying capacity modification labels.
What do the p1442 and p1445 codes mean?
My 06 LC just started throwing the codes P1442 and P1445, and started sounding noticeably louder. My reading indicates some expensive problems with the air intake and a workaround:
My 06 LC just started throwing the codes P1442 and P1445, and started sounding noticeably louder. My reading indicates some expensive problems with the air intake and a workaround:
Why does my Lexus LX470 thump when I stop?
The 1998-2007 LX470 and 2003-2008 GX470 both had variable height control systems ( hydraulic for the LX470, air suspension for the GX470) that share a common problem: a thump, clunk or “kick from behind” when coming to stop or taking off from a stop. The issue most commonly is from the rear driveshaft.