How can you tell if you jumped timing?
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I don't know much about cars but my husband is working on my car and he said he may have jumped timing. Can someone please explain this to me? He's stressing me out. I really should just put the car in the shop!
Thanks in advance.
By the way, I have a 2000 RX300 with 129,000 miles.
Thanks in advance.
By the way, I have a 2000 RX300 with 129,000 miles.
Last edited by kpopil; 01-05-09 at 10:10 AM. Reason: Adding a comment.
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I got the car with about 50,000 miles on it. I have not changed the timing belt for financial reasons only. I'm wondering if it may have snapped. The car won't start. My husband cleaned the IACV and also replaced the fuel pump. The fuel pump is definitely working but the car still won't start. I didn't have any symptoms (other than transmission issues) before the car died while I was driving it. My husband is trying to do what he can to save a huge expense at the shop but I'm starting to think it's inevitable.
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If it's not the timing, what else do you think it could be?
Thanks for your help everyone. I'm grateful for this forum!
Last edited by kpopil; 01-05-09 at 10:28 AM. Reason: Correcting punctuation
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It's going to be really hard for me to tell from this vantage point. You could go out and buy and OBD2 scanner (I highly recommend this, as this tool is invaluable and can be found for under $100 USD). If you can get the dash lights, radio on, etc., then you should be able to hook up the scanner and read any codes. That's really the only thing we can do from here.
The timing belts have been known to go longer in these vehicles than the 90K mark where they are normally changed out. He should be able to locate the cover on the left side of the engine bay where the timing belt is located.
The timing belts have been known to go longer in these vehicles than the 90K mark where they are normally changed out. He should be able to locate the cover on the left side of the engine bay where the timing belt is located.
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Timing belt is still in tact although I know I need to change this soon! The car is turning over and almost starts, but then sputters out. It's not backfiring or anything so my husband thinks the timing is okay. It just won't stay running. He's kind of stumped.
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I think you're right. I just need to convince my husband to give up.
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The only other things that come to mind are the IACV valve having an issue, https://www.clublexus.com/forums/sho...d.php?t=358579 where the it's in a position that won't allow it to open let in air to star up the vehicle.
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The only other things that come to mind are the IACV valve having an issue, https://www.clublexus.com/forums/sho...d.php?t=358579 where the it's in a position that won't allow it to open let in air to star up the vehicle.
Ryan
#13
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yeah the iac will definitely keep it from running. they can be cleaned with carb cleaner. easy to get to and easy to clean as well.
if the timing belt is broken, the engine will sound different when it's cranked over. it will spin faster than normal and sound kind of higher pitched. of course it will never start.
it's pretty rare for them to jump time/skip teeth on the belt.
if the timing belt is broken, the engine will sound different when it's cranked over. it will spin faster than normal and sound kind of higher pitched. of course it will never start.
it's pretty rare for them to jump time/skip teeth on the belt.
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yeah the iac will definitely keep it from running. they can be cleaned with carb cleaner. easy to get to and easy to clean as well.
if the timing belt is broken, the engine will sound different when it's cranked over. it will spin faster than normal and sound kind of higher pitched. of course it will never start.
it's pretty rare for them to jump time/skip teeth on the belt.
if the timing belt is broken, the engine will sound different when it's cranked over. it will spin faster than normal and sound kind of higher pitched. of course it will never start.
it's pretty rare for them to jump time/skip teeth on the belt.
The timing belt was in tact but now the car backfired and sounds exactly the way you're describing. I'm now sure it's the timing belt and I pray my husband didn't do any more damage to the car. Now he wants to do the timing chain himself. Is this a DIY project or would you recommend I plead and beg for a tow to a mechanic?
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if he wants to make sure it's easy enough to do. jack up the right front side, take the wheel off. removed the fender liner. now there's access to the belts and covers. take off the accessory belts. remove teh covers and crank pulley. the upper cover is tight, wiring harness fits very closely to the cover, tell him to just take his time and detach everything that's int eh way. the motor mount also has to be removed on that side.
it's actually an easy job as far as t belts go, it will probably take him all weekend though.
but once he has the cover off, he'll be able to tell if the belt is broken because it will be loose. if the belt is tight, he should be able to turn the crank pulley with a long ratchet and the cams should turn along with the crank. if the ydon't turn, the belt is bad.
it's actually an easy job as far as t belts go, it will probably take him all weekend though.
but once he has the cover off, he'll be able to tell if the belt is broken because it will be loose. if the belt is tight, he should be able to turn the crank pulley with a long ratchet and the cams should turn along with the crank. if the ydon't turn, the belt is bad.