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Toyota Tacoma Engine Questions

62 messages,  Last post on Mar 26, 2009 at 3:22 PM

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#53 of 62 1998 TOCOMA 4 CYL. ROUGH IDLE by jerry3399 Apr 10, 2008 (9:46 am)
DTC 171 FUEL TRIM TOO LEAN,USING A TOYOTA SCAN TOOL. WE ARE SHOWING THE LONG TERM TRIM AT 39% AND SHORT TERM AT17%. CHECKED FOR AIR LEAKS,OXY.SENSOR,MASS AIR FLOW,AND COOLANT TEMP.SENSOR,ALL IN NORMAL RANGE. WHAT IS CAUSING THE LONG TERM TRIM TO BE HIGH?
#54 of 62 Re: Tacoma running rough [leleu] by leleu Jun 26, 2008 (9:03 am)
Replying to: leleu (Apr 09, 2008 10:34 pm) Hi everyone, I solved my problem with the #2 cylinder misfire on my 2000 tacoma 4cyl./2.4L and the code that i always got, PO 302 and PO 300. I was missing the ground cable from the battery to the body of the truck. Now I have a compression problem on #2 cylinder, I only get 90 psi where #1, #3, and #4 have 120 psi. I removed the fuel injectors and lubed the O-rings and increased the psi to 150 on #1, #3, and #4 but it lowered it on #2 to 80 psi, also swapped #1 and #2 injectors. Anyone has any input on how to improve compression or what to check? Appreciate the help. Replies to this message: xuneh (Jul 27, 2008 5:31 pm) markusssss (Mar 26, 2009 3:22 pm)
#55 of 62 Re: Tacoma running rough [leleu] by xuneh Jul 27, 2008 (5:31 pm)
Replying to: leleu (Jun 26, 2008 9:03 am) I know it's a little late, but I just found this forum while looking for an answer to my own problem. (random missfire) Anyways, I went though the same thing about a year ago. You've got a stuck valve in your #2 cyl.. Have fun pulling the head, then take it to machine shop and have them do a valve job. If you do find this to be the problem let me know, it could be a problem with the head casting, something that Toyota might be willing to adress. Anyone else with this problem (#2 Cyl. only) please let me know. 2000 Tacoma 2.4 312k and still going strong. Replies to this message: markusssss (Mar 26, 2009 3:22 pm)
#56 of 62 2002 Tacoma wont start by kwh572 Aug 04, 2008 (7:31 pm)
I have trouble getting my truck to start when the weather is hot (above 90) and when I add gas to it. I put a scanner on it and the code came up as "po441" which is something about the EVAP system purge flow fault. Any other time it starts right up. Even when I do have trouble starting it, it will run fine after it gets going. Looking for solutions.
#57 of 62 2006 tacoma high idle by plyons Sep 22, 2008 (5:52 am)
When I first start the engine in am. the idle races to 2000 rpms before settling down to 1000 (which seems normal)) I have had it in for service to no avail. It just does it after sitting for 6 hours or more--any advice??? Replies to this message: 1knight (Nov 29, 2008 10:39 am)
#58 of 62 Re: 3.0 starts for about 15 seconds and dies [nutsonwheels] by daniel37 Oct 10, 2008 (8:31 am)
Replying to: nutsonwheels (Feb 16, 2008 12:49 pm) I just rebuilt my 2.7 liter toyota tacoma 4x4 motor and my truck dies every time I turn it on and let it idle. If i turn it on and drive it right away it does't die at all it runs fine. My responce is... is this whats happening to your truck cause i cant figure out why mine is doing this i replaced the crank positon censor replaced my computer and still dies. have you tried doind that?
#59 of 62 2007 tacoma engine tick by troy18 Oct 18, 2008 (10:24 am)
i have read many !!! posts about this drivers side engine tick not one has the answer to what it is does anyone know what is making the noise
#60 of 62 98- engine codes by kiddvegas Oct 29, 2008 (1:39 pm)
i have 98 4cyl tacoma, check eng light just came on, running very rough, has new plugs,wires,air filter....do i have to take it to a dealer to read the check eng codes or can i do that at home to make cheaper repairs myself...
#61 of 62 Re: 2006 tacoma high idle [plyons] by 1knight Nov 29, 2008 (10:39 am)
Replying to: plyons (Sep 22, 2008 5:52 am) I also have a 2006 tacoma 2.7L manual shift that does the same thing on cold starts, it revs up to about 2500 rpms for about 20 seconds before idling down. my truck also revs up to about 2500---3000 rpms when shifting from 4th to 5th gear for about 5---8 seconds before idling back down, I think it is a vacum problem but I have not yet figured out how to correct the problem do you also have this issue?
#62 of 62 Re: Tacoma running rough [xuneh] by markusssss Mar 26, 2009 (3:22 pm)
Replying to: xuneh (Jul 27, 2008 5:31 pm) I have the same problem exactly #2 80 psi #1,3,4 150 psi intermitant I did a dry and wet staied about the same except once read 150 on # 2 because i think the valve shut once but remaind stuck 4 most of the time ...Did You find out if it was indeed a factory recall???? well thanks for the posts for all of us that just need help...

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