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It is idled up too high. Just had a motor put in it with
it is idled up too high. Just had a motor put in it with 110,000 miles. It shows around 1000 rpms. … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
6,870 satisfied customers
I have a 92 sc400. My car will not idle correctly. When it
I have a 92 sc400. My car will not idle correctly. When it starts up it jumps up to nearly 1800 rpm then cuts out. Then it will repeat itself. … read more
Todd M
Todd M
Owner
ASE Certification
1,931 satisfied customers
My car stalls with the MAF plugged in, as soon as i turn it
I have tried another maf, i have adjusted the IAC, i changed the throttle cable … read more
Greg
Greg
Shop owner, technician
Vocational, Technical or Trade Scho
6,146 satisfied customers
When I start the car, the engine surges up between 1200 and
When I start the car, the engine surges up between 1200 and 2000 rpm back and forth. I changed the IAC and the TPS with no change in symptoms. I have noticed that several Lexus SC's have this same iss… read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
1,608 satisfied customers
My name is ***** *****. I own a 92 SC400. The problem only
My name is ***** *****. I own a 92 SC400. The problem only occurs when the engine is warm and after I leave the car for a few minutes. Directly after I start the engine it revs between 1200 and 2000rp… read more
Clayso
Clayso
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ASE Master Certified Automobile Technician
879 satisfied customers
Lexus ES300: The starter was replaced on a 2003 ES300. Upon
The starter was replaced on a 2003 ES300. Upon starting the engine would stall out a slow idle. By giving it more pedal and or turning on the AC. it would keep running. It ran fine at 70 mph (travelle… read more
Technician Chris
Technician Chris
Vocational, Technical or Trade School
366 satisfied customers
Lexus SC400: I have a very low mileage (20,500 miles) 1994
I have a very low mileage (20,500 miles) 1994 Lexus SC400. Usually it starts & runs fine. Sometimes when it starts, it has a really bad low-speed misfire. Once I can the engine up to about 2,000 rpm, … read more
Chris (aka - Moose)
Chris (aka - Moose)
Technician
Vocational, Technical or Trade School
345 satisfied customers
Lexus SC400: Car: 1993 Lexus SC400 AutomaticProblem: When
Car: 1993 Lexus SC400 Automatic Problem: When idling, engine struggles to stay on and eventually stalls. Tried: Unplugged the MAF, car runs fine. Now check engine light is on and car runs rich. Replac… read more
Joe
Joe
Shop supervisor
Vocational, Technical or Trade Scho
708 satisfied customers
1995 sc400: lexus..the mass air flow meter, so i did..stumbles..ac
i have a 1995 sc400 lexus .my friend hooked it up to a OBD1 the code was to change the mass air flow meter, so i did. Now the car stumbles worse than it did off the start, Plus the idle is different ,… read more
LexusPro
LexusPro
Master Automotive Technician
1,002 satisfied customers
93 Lexus: trans shop, the card started to vibrate at 2k rpms
93 Lexus LS 400. I had the transmission rebuilt. When I was driving the car from the trans shop, the card started to vibrate at 2K rpms. The trans shop thought it could be the torque converter but the… read more
lexpert
lexpert
Lexus Master tech
Vocational, Technical or Trade Scho
2,100 satisfied customers
1998 Lexus GS300: cold start..runs rough..IAC and ECM changed
I have a 1998 Lexus GS300 that has low idle on cold start - also runs rough after driving a few miles. Had IAC and ECM changed but still have the problem. What could it be?… read more
HondaPlatinum
HondaPlatinum
Vocational, Technical or Trade School
25,624 satisfied customers
Lexus SC400 I have a 93 sc400 with traction. It idles very
I have a 93 sc400 with traction. It idles very low and you have to give it gas even to start to idle. I have tried a different ECU. Also replaced TPS. NOW here is a interesting thing...adjusting the t… read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
5,454 satisfied customers
lexus: timing belt..without taking..car runs fine..idle dead smooth
is there any way to verify that a timing belt was installed and lined up properly without taking everything apart again? I had a non lexus mechanic do the TB. the car runs fine, but it doesn't idle de… read more
Genchi Genbutsu
Genchi Genbutsu
Vocational, Technical or Trade Scho
3,854 satisfied customers
100k miles..top hats, bearings and front struts replaced..alignment
I have a 2000 ES 300 with almost 100K miles. I recently had the top hats, bearings and front struts replaced because of noise. An alignment was also done. SInce then the car pulls to the right after a… read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
11,778 satisfied customers
1999 lexus rx300: the check engine light..mass air flow..cooling
I have a 1999 lexus rx300 and the check engine light keeps coming on code p0171 and i changed the air fuel ration sensor mass air flow senor and the cooling temperture sensor and light keeps coming on… read more
Genchi Genbutsu
Genchi Genbutsu
Vocational, Technical or Trade Scho
3,854 satisfied customers
300 Lexus: it has been hesitating..start right away
I have a 2000 RX 300 Lexus SUV. Recently, it has been hesitating when trying to start. It does not start right away like it used to. what can this be? (starter has been replaced)… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,848 satisfied customers
2002 Lexus RX300: white smoke coming..only occurs..a couple quarts
I have a 2002 Lexus RX300 and have see white smoke coming out the back when I start the car in the morning. This only occurs the first time I start the car each day. I also have to put a couple quarts… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,848 satisfied customers
1992 Lexus SC400: 100,000 miles..timing belt..hydraulic..reverse screw
I have a 1992 Lexus SC400. When I bought it, it had over 100,000 miles on it so I got the timing belt and water pump changed. I have since found out that the hydraulic fan pump assembly that fits over… read more
JHoop
JHoop
Owner,Technician
High School or GED
5,425 satisfied customers
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Meet the Experts:

lexpert

lexpert

Lexus Master tech

2,100 satisfied customers

Master Certified with lexus, 8 years experience with Lexus

Skyvisions

Skyvisions

ASE Certified Technician

1,848 satisfied customers

Lexus Expert

Ron Z.

Ron Z.

- Lexus Tech -

454 satisfied customers

18+yrs experience. State Inspector and Lexus Diagnostics

Chris (aka - Moose)

Chris (aka - Moose)

Technician

345 satisfied customers

16 years of experience

AMD

AMD

Master Technician

270 satisfied customers

L1 Advanced Level Diagnostics Specialist

George H.

George H.

ASE Certified Technician

224 satisfied customers

15+ years ASE Master w/L1 Drivability certification

Tim Mohr

Tim Mohr

ASE MASTER

129 satisfied customers

30 YEARS EXPERIENCE, FORIEGN AND DOMESTIC, GAS AND DIESEL

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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