Automotive Help

Test drove a '90 Lexus Ls400. I started it up and the exhaust was smoking pretty bad. The gas pedal was rock hard, I had to put a lot of force to push it. It barely had gas and when I mashed the pedal it barely accelerated. I got to 30mph in about 10 sec. My first thought was transmission, but I'm thinking it was because of the gas.

Any thoughts on this anybody?

I personally used to own a 92 ls400 that had the same problem. However there are several things that can cause this problem. Lobo mentioned a few.

First off...the gas pedal. That Lexus has a electronic throttle. Its controlled by solenoids and servos that actually make the gas pedal work. Or it was just plain ol bound up.

As far as the idle goes.....The 4.0 v8 lexus is controlled buy TWO different coils. On mine, I had one of my 2 coils that was bad. I could mash the pedal to the floor and I would do 0-60 in like 5 minutes and then my catalitic converters would glow red. Replaced the coils and all was good.

However a car that old with all those issues is for sure not worth $2900. I would RUN away from that car as fast as I could.

Lobo gets the win for best dashboard EVER!! Even tho Im not a corvette fan!! Sorry lobo

HRD
 
I personally used to own a 92 ls400 that had the same problem. However there are several things that can cause this problem. Lobo mentioned a few.

First off...the gas pedal. That Lexus has a electronic throttle. Its controlled by solenoids and servos that actually make the gas pedal work. Or it was just plain ol bound up.

As far as the idle goes.....The 4.0 v8 lexus is controlled buy TWO different coils. On mine, I had one of my 2 coils that was bad. I could mash the pedal to the floor and I would do 0-60 in like 5 minutes and then my catalitic converters would glow red. Replaced the coils and all was good.

However a car that old with all those issues is for sure not worth $2900. I would RUN away from that car as fast as I could.

Lobo gets the win for best dashboard EVER!! Even tho Im not a corvette fan!! Sorry lobo

HRD
Thanks for the info. I'm not even going back to that guy. I'm looking at an SC400, preferably 98 or 99 for the VVT-I. I've heard the SC300 can be heavily modded, but the 400 is limited for mods.
 
Thanks for the info. I'm not even going back to that guy. I'm looking at an SC400, preferably 98 or 99 for the VVT-I. I've heard the SC300 can be heavily modded, but the 400 is limited for mods.

Yeah Ive heard the same thing. Variable Valve Timing. Those things were made to retard the timing down when your cruising at certain speeds. Then you crazy kids go a mess everything up. LOL...

I myself am an old school car guy. 30's, 40's, 50's & 60's american cars are my specialty. Thats right, in the 70's cars went to shit, at least mucsle cars did.

But if aisan cars are your thing. To each his own.

HRD
 
Yeah Ive heard the same thing. Variable Valve Timing. Those things were made to retard the timing down when your cruising at certain speeds. Then you crazy kids go a mess everything up. LOL...

I myself am an old school car guy. 30's, 40's, 50's & 60's american cars are my specialty. Thats right, in the 70's cars went to shit, at least mucsle cars did.

But if aisan cars are your thing. To each his own.



HRD

Lol, I love all cars, especially American. I hate BMW 335i owners/fanboys. My all time favorite car is the Mclaren F1. I'd love to learn about old schools/hot rods, but I don't know where to go or what to do to learn more about cars. Should I start out on the net?
 
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