blessed

I've tested a spark plug and the High Tension Cords from the both distributors and none produce spark when the engine is cranked. I'm guessing the possible culprit would be the coils, but is it possible that they both fail at the same time or if one fails they both fail? Thanks for your suggestions!

Thanks....I just pulled one plug from each side and... no spark. I pulled the High Tension Cord from each distributor and no spark. Not sure how to check the cables other than just making sure that they're well seated. Can both coils go bad at the same time? That would seem strange. ?

Hey guys, Happy New Year! I'm celebrating by watching a little football and trying to figure out why my 91 LS refuses to start. Initially thought it was the fuel pump, but replaced that yesterday and still not starting. Check to see if fuel is getting to the motor and yes it is. Then I pulled the High Tension Cord from one of the distributors and held it about an inch away from the valve cover and cranked it over. NO SPARK! (I think this is the best way to check for spark) So, now what? I'm at a loss as to why I don't have spark. Previously (see my previous posts), the car would run well, but after I turned it off from a 30 min. or so drive it would not start (just cranked over strong) until about 30 minutes later then it started fine. Additionally, when I would be driving and punch it hard to pass a car on the highway it would die in the middle of the highway (I just coasted to the side of the road). This happened about 3 times. So I thought it was a fuel issue. So, any suggestions as to why I'm not getting any spark? Thanks for your advice in advance!

Relay is in the main fuse box in the engine bay, lift the cover and look underneath, sticker will show you which is which I think. How long have you cranked for? you may need to crank for a 30 second burst, but certainly no more than that or you could overheat the starter windings. Thanks! I cranked several times for at least 15 to 20 seconds each. I'll try again today for a bit.

91 LS with a new Fuel Pump and still will not start. It cranks over fine, however, it appears to not be getting any fuel. So, I'm guessing I need to check or replace the Fuel Presure Regulator and/or the Fuel Pump Relay. The fuel pump is working fine. Any ideas on their location? Thanks and Happy New Year!

Thanks for your ideas guy's! The car runs like new after it starts. This has been happening most of the summer and it's been a somewhat hot and dry one in Nor Cal (Sacramento). Thanks for ruling out the Vapor Lock idea and I'll pull one of the plugs the next time it happens when at home. I'm running regual octane fuel (87) for the most part. I'll also purchace a can of starter fluid and check my battery connections. I'll keep you guys posted. Thanks again for your input. Blessed

91 LS with 225k runs great, however, it doesn't start after driving it for a while. Letting it sit seems to fix the problem (that is until it's driven again for a while). After sitting for at least 1 hour it will start with no problem. The car will turn over, but doesn't seem to be getting fuel so it just turns over and over without starting. A short drive (under 15 min) and the car will start again without a problem. Is this a vapor lock or is the Feul Pump going bad or what?????? Thanks in advance for your help! s

I had this problem as well. I looked into it myself and noticed that the holes on the disc (aftermarket) where the wheel studs go were significantly bigger than the studs on the hub, this meant that the disc could move around before resting on the studs to stop the car. When driving in a linear motion they disc would already be lying on the stud but when you turn, the disk moves around some before making contact with the studs. I bought the origonal discs from the dealer, threw them on and the noise went away. Look into it and see if the hub moves around when you take off the wheel. Interesting....Are you referring to the brake discs? If so did that happen on all 4 or just the front. Wouldn't that cause some rubbing and/or distruction over time? I'll check it out. I haven't seen any grooves cut into any metal the last time I changed the brakes, but I'll look a little closer. Thanks for your reply! S

Hey guy's, 91 LS, 200k miles and noticed a clicking noise when I let off the gas peddle. The noise goes away when excellerating and returns when I let off the gas. Anyone have ideas or suggestions? This has been happening on and off now for over a year. It happens mainly after the car has been sitting at an idle for a while (5 or 10 minutes). The clicking noise seems to click with the speed of the car. Clicks slower as the car slows down. I'm thinking it's the drive shaft or the u joints or other bearings tied to the drive train. I don't think the LS has CV Joints but not sure. If you have any links to how to replace any of these please let me know. Thanks!

I found those too. Anyone buy one for the E-Bay venor? It looks like they rebuild them. Retail cost's for the complete package is just under $1,000.....From the E-Bay vendor it's only $250. Doesn't sound too bad if their any good. Suggestions?

Thanks....I'll check those out!

Well, it must be Murphy's Law that when it get's hot your A/C Compressor goes out. Do we really have to go to the Lexus dealer to get a new A/C Compressor? 91 LS with 225k and running strong. Great car with very little trouble. Suggestions as to where to find a new A/C Compressor for a 91 LS?

S: Filter, Filter, Filter................ (Cabin Air Filter................is it clean?) Do a search on this site for "cabin air filter"..............There's plenty of info here. Thanks Threadcutter......Did the search and took off the panel only to find out the 90-92 LS does not have Cabin Air Filters. <grin> Do you have any other suggestions? Thanks SKperformance..... Did a search for "air control dampers" and nothing came up (other than this thread) Is this something that must be done at the shop with special tools? Sounds like it is. Is a vacume leak simple to fix or complex (expensive)? S

What do you think guy's? I've got a 91 LS 400 and just had the AC charged. The service invoice states they Added Freon to Full Level, Took 1.5lbs. System Holds 2.42 Total. High Presure Side is at 178 psi, Low Side is at 29 psi. Vent temp at 33 degree's. However, when your driving down the road the AC begins to blow warmer air. When at a stop light or at an idle it's nice and cold. What's even more interesting is the fact the two center vents are blowing considerably different temperatures. The driver vent is a lot warmer than the passenger vent. ???? What's causing the AC to not blow COLD air when driving? Thanks in advance for your suggestions. S

Technical training course L752 has all you will ever want to know about air con, it is 9 pdf files about 3.12MB in size and can be downloaded from http://techinfo.lexus.com I just hope I never need it! Thanks! I hope I don't need it either. I set an appointment to have it charged at a shop I've used a couple of time. It's only $175 so what the heck. Thanks again!