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'93 Toyota pickup Engine won't start
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Troubleshooter
Novice
Oct 25, 2013, 11:17 AM
Post #1 of 16
(3738 views)
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'93 Toyota pickup Engine won't start
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'93 Toyota pickup
2.4 ltr/ 4 cyl
22re
260,000 mi
Engine had some knock, so this novice decided to get greesy. After inspect rocker assembly (removed and did lateral test) found no issue. While valve cover off, playfully sought how much the oil would spurt if engine were cranked. After putting everything back together engine won't start. It had a noxious chemical smell (petro?) when it was cranked after the valve cover and everything back on. Waited to see if gas/oil mixed and needed to settle. Still no start. Starter itself cranks, just not engine. What to do?
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Discretesignals
Ultimate Carjunky
/ Moderator
Oct 25, 2013, 11:54 AM
Post #2 of 16
(3729 views)
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Re: '93 Toyota pickup Engine won't start
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Was it running before you took it apart?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Troubleshooter
Novice
Oct 25, 2013, 12:23 PM
Post #3 of 16
(3722 views)
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Re: '93 Toyota pickup Engine won't start
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Oh yes, sorry! It was. It had rough idle, and a knock that was much quieter like a grass-sprinkler in the distance, then while hauling a load the knock got very loud. Sounds like when you-tube videos diagnosis for engine knock- with the source being found to be a cylinder rod, diagnosed by removing plugs one at a time. There's a couple things to assess for the knock itself, but yes it was running until I removed the valve cover and inspected the rockers. Everything (rocker assembly, cover) is bolted back down not to specs but to tension just enough to get the engine running and diagnose possible cyclinder rod damage. Cover gasket is not installed, but all hoses are. Is the gasket alone enough to cause compression issue-therefore engine won't start? Seems something else.
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Troubleshooter
Novice
Oct 25, 2013, 12:30 PM
Post #4 of 16
(3720 views)
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Re: '93 Toyota pickup Engine won't start
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Also, there was a short. The cab would get power (lights, radio, etc), until the ignition was turned. Then it would lose power. I'd wiggle the positive battery terminal, cab would get power then lose it. I tightened thoroughly the attached relays on top of valve cover in case that affected the system (?), then tightened positive terminal. It doesn't clamp all the way shut on the terminal, but it tightened as much as it could, with only a slight but possible wiggle on the terminal. The engine now cranks, but doesn't start. It does hold the power now (cab lights, radio).
Thankyou!
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Troubleshooter
Novice
Oct 25, 2013, 12:37 PM
Post #5 of 16
(3717 views)
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Re: '93 Toyota pickup Engine won't start
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(* noid light, pressure guage, spark tester all cost money, so hopefully it is a quick fix instead)
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Discretesignals
Ultimate Carjunky
/ Moderator
Oct 25, 2013, 2:10 PM
Post #6 of 16
(3707 views)
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Re: '93 Toyota pickup Engine won't start
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Do you have spark?
The vane air flow meter is plugged in and the ducting is installed?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Oct 25, 2013, 2:16 PM)
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Troubleshooter
Novice
Oct 27, 2013, 10:12 AM
Post #7 of 16
(3678 views)
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Re: '93 Toyota pickup Engine won't start
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Will check. Now have antifreeze in the crank.
(This post was edited by Troubleshooter on Oct 27, 2013, 10:29 AM)
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Discretesignals
Ultimate Carjunky
/ Moderator
Oct 27, 2013, 3:55 PM
Post #8 of 16
(3672 views)
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Re: '93 Toyota pickup Engine won't start
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You have coolant in the crankcase?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Troubleshooter
Novice
Oct 28, 2013, 9:31 AM
Post #9 of 16
(3659 views)
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Re: '93 Toyota pickup Engine won't start
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Aye. The initial engine knock was while hauling a series of heavy loads. I drove my truck for another 3 mi with the knock. Could their be a crack due to that? Or could compression loss due to turning on the engine while valve cover was off have just caused a weird mixture scenario?
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 28, 2013, 9:33 AM
Post #10 of 16
(3658 views)
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Re: '93 Toyota pickup Engine won't start
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Sounds like the timing chain went through the timing cover.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Troubleshooter
Novice
Oct 28, 2013, 1:51 PM
Post #11 of 16
(3651 views)
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Re: '93 Toyota pickup Engine won't start
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Well, I'm no expert. The chain looks alright from above (valve cover removed). Maybe the Chilton manual will show me what I need to look at re: chain cover. If it is cracked does this mean that I may as well get a whole new engine or buy a rebuilt engine?
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 28, 2013, 2:31 PM
Post #12 of 16
(3649 views)
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Re: '93 Toyota pickup Engine won't start
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When the chain stretches it slaps against the inside of the timing cover and wears right through the timing cover into the water jacket. It rattles for a long time before it goes through.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Troubleshooter
Novice
Oct 30, 2013, 8:33 AM
Post #13 of 16
(3634 views)
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Re: '93 Toyota pickup Engine won't start
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Just heard a video. The knock on my truck sounded like rod knock. That is after hauling the loads, the sound became loud like metal against metal, just like a rod knock sound. Before it sounded like a sprinkler in the distance, so maybe was also a timing chain. Thankyou Hammertime and Discretesignals.
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 30, 2013, 8:41 AM
Post #14 of 16
(3633 views)
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Re: '93 Toyota pickup Engine won't start
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Yes, if it started out as a timing chain problem and leaked coolant into the oil, that would develop into a rod knock eventually. Is the oil all creamy?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Troubleshooter
Novice
Nov 3, 2013, 2:49 PM
Post #15 of 16
(3604 views)
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Re: '93 Toyota pickup Engine won't start
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I've decided to swap out the motor with a remanufacture. Hoisting with tree limb. At 260,000 mi it has had its good times.
Now for NEW LIFE.
Thankyou for your informed opinions, carried me further along the road -- !
:)
(This post was edited by Troubleshooter on Nov 3, 2013, 2:51 PM)
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 3, 2013, 2:55 PM
Post #16 of 16
(3602 views)
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Re: '93 Toyota pickup Engine won't start
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That's probably a good decision.
Closing this question now as solved to keep spammers out.
Contact any Mod if you need it reopened.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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