Member Help thread from a Lexus Certified Technician
11-08-10 | 08:45 PM
#661
Thread Starter
Lead Lap
Joined: Jul 2006
Posts: 515
Likes: 0
From: NY
three weeks ago my cruise control would not grab at speeds greater than 55mph. two ago i noticed my speedometer needles was all over the place at speeds greater the 50 or so.
speeds on the interstate the needle goes done to zero, that's when i am around 90 mph. the odometer also begins to slow, where on the interstate i drive 50 miles, and onky 5 are clocked.
I HAVE:
1. replaced cruise control motor (used) today, no change
2. waiting for a speedometer sensor to arrive.
IT does not seem that the two are related, but there are so many motors and stuff, i do not know where to go other than the dealership, and they will replace everything.
any other thoughts?
speeds on the interstate the needle goes done to zero, that's when i am around 90 mph. the odometer also begins to slow, where on the interstate i drive 50 miles, and onky 5 are clocked.
I HAVE:
1. replaced cruise control motor (used) today, no change
2. waiting for a speedometer sensor to arrive.
IT does not seem that the two are related, but there are so many motors and stuff, i do not know where to go other than the dealership, and they will replace everything.
any other thoughts?
11-08-10 | 08:49 PM
#662
Thread Starter
Lead Lap
Joined: Jul 2006
Posts: 515
Likes: 0
From: NY
You may have a bad traction control ecm, a short in the wheel speed sensors. MPG is always hard to determine because it depends on the condition of the motor, each car varies; climate, elevation etc... all needs to be factored in. I cannot give you a number as it will be a guestimation.
11-08-10 | 08:52 PM
#663
Thread Starter
Lead Lap
Joined: Jul 2006
Posts: 515
Likes: 0
From: NY
Tach,
I have a 1997 ES300 with 133,XXX. I have seen posted on another forum that keeping the throttle body and IAC clean will make the car run much better. Besides cleaning the TB with a rag, should the IAC be removed to be cleaned by removing the TB, or can I remove it while the TB is still attached to the engine by removing the three rubber hoses and four screws holding it to the TB.
Thanks for any input
I have a 1997 ES300 with 133,XXX. I have seen posted on another forum that keeping the throttle body and IAC clean will make the car run much better. Besides cleaning the TB with a rag, should the IAC be removed to be cleaned by removing the TB, or can I remove it while the TB is still attached to the engine by removing the three rubber hoses and four screws holding it to the TB.
Thanks for any input
11-09-10 | 06:20 PM
#664
Rookie
Joined: Oct 2010
Posts: 68
Likes: 0
From: tx
hello tach
1993 lexus ls400
since my car doesnt want to start after replacing the timing belt and water pump
my question is about the timing
if the three marks (2camshaft and crankshaft) on the timing belt all align and number one cylinder is at tdc would it matter if any of the two camshaft gears were moved during the installation of the timing belt
it cranks has gass and spark just wont start could it be an open/broken egr valve
1993 lexus ls400
since my car doesnt want to start after replacing the timing belt and water pump
my question is about the timing
if the three marks (2camshaft and crankshaft) on the timing belt all align and number one cylinder is at tdc would it matter if any of the two camshaft gears were moved during the installation of the timing belt
it cranks has gass and spark just wont start could it be an open/broken egr valve
11-10-10 | 07:33 AM
#665
Thread Starter
Lead Lap
Joined: Jul 2006
Posts: 515
Likes: 0
From: NY
Make sure the cams line up in TDC marks, and crank at TDC mark. Also make sure your Crank sensor teeth are not damaged; One cracked or missing tooth will cause the car not too start, also make sure the crank angle sensor is not unplugged or damaged, Make sure all plugs are connected.
11-10-10 | 07:44 AM
#666
also if it is the rack, since my car is lowered considerably would they try to blame it on that for being the reason why its bad?
Last edited by IXI187IXI; 11-10-10 at 08:00 AM.
11-10-10 | 10:54 AM
#667
Rookie
Joined: Oct 2010
Posts: 68
Likes: 0
From: tx
Make sure the cams line up in TDC marks, and crank at TDC mark. Also make sure your Crank sensor teeth are not damaged; One cracked or missing tooth will cause the car not too start, also make sure the crank angle sensor is not unplugged or damaged, Make sure all plugs are connected.
is the crank angle sensor (AKA crankshaft sensor ) the one by thetiming belt guide
11-11-10 | 06:54 PM
#668
Thread Starter
Lead Lap
Joined: Jul 2006
Posts: 515
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From: NY
thanks! i believe it was already replaced though. I think it was done in the summer of 09, i'll have to check my paper work. if it was already done, would they do it again if its acting up? if so since its out of warranty it still should cost me nothing given its a recall correct?
also if it is the rack, since my car is lowered considerably would they try to blame it on that for being the reason why its bad?
also if it is the rack, since my car is lowered considerably would they try to blame it on that for being the reason why its bad?
11-11-10 | 06:55 PM
#669
Thread Starter
Lead Lap
Joined: Jul 2006
Posts: 515
Likes: 0
From: NY
11-12-10 | 01:05 PM
#670
Rookie
Joined: Oct 2010
Posts: 68
Likes: 0
From: tx
i redid everything still no go
but ifound what i think problem the camshaft sensors are not getting any power the cams themselves are good i checked them
when i open the key no power, when i crank the engine still no power is there a fuse to these
im going in trace these wires see where they lead me
thanks alot
but ifound what i think problem the camshaft sensors are not getting any power the cams themselves are good i checked them
when i open the key no power, when i crank the engine still no power is there a fuse to these
im going in trace these wires see where they lead me
thanks alot
11-14-10 | 07:04 AM
#671
Driver School Candidate
Joined: Nov 2010
Posts: 3
Likes: 0
From: pa
Thanks for you help! Own a 2001 RX300 with 133,000 miles that is starting to stutter and hesitate from full stop to initial forward motion. Sound like a repetitive chk-chk-chk last for about 10 times then stops. Once it starts to move all is fine through higher gears. THis is happening more frequently.
Friends who own 2 RX300s told me they had similar issues due to bad coil.
Friends who own 2 RX300s told me they had similar issues due to bad coil.
11-14-10 | 07:51 AM
#672
Thread Starter
Lead Lap
Joined: Jul 2006
Posts: 515
Likes: 0
From: NY
i redid everything still no go
but ifound what i think problem the camshaft sensors are not getting any power the cams themselves are good i checked them
when i open the key no power, when i crank the engine still no power is there a fuse to these
im going in trace these wires see where they lead me
thanks alot
but ifound what i think problem the camshaft sensors are not getting any power the cams themselves are good i checked them
when i open the key no power, when i crank the engine still no power is there a fuse to these
im going in trace these wires see where they lead me
thanks alot
11-14-10 | 07:53 AM
#673
Thread Starter
Lead Lap
Joined: Jul 2006
Posts: 515
Likes: 0
From: NY
Thanks for you help! Own a 2001 RX300 with 133,000 miles that is starting to stutter and hesitate from full stop to initial forward motion. Sound like a repetitive chk-chk-chk last for about 10 times then stops. Once it starts to move all is fine through higher gears. THis is happening more frequently.
Friends who own 2 RX300s told me they had similar issues due to bad coil.
Friends who own 2 RX300s told me they had similar issues due to bad coil.
11-14-10 | 04:54 PM
#674
Driver School Candidate
Joined: Nov 2010
Posts: 1
Likes: 0
From: nc
I am posting this as a Technical help thread for NELOC Lexus owners. I am in no way advertising a business or soliciting work. I am only on here to offering to help diagnose problems you may be having with your Lexus vehicles to get a jump on your repairs.
You can post your questions and/or info on your vehicles and I'll reply to them here!
You can post your questions and/or info on your vehicles and I'll reply to them here!
11-15-10 | 01:36 PM
#675
Thread Starter
Lead Lap
Joined: Jul 2006
Posts: 515
Likes: 0
From: NY
The gs300 have two cats right on the exhaust manifold, Did you cut one out and replace it or did you replace the entire manifold assembly. ?