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Isis toyota 1az engine, after replacing oil rings the coils are not firing, hence it cant start

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 318 Answers

SOURCE: oil burning in my 2001 toyota highlander 84000 miles. bad rings.

You need to talk to a dealer.

Posted on Oct 27, 2009

Darion
  • 7 Answers

SOURCE: 2005 Ford E350 Cargo Van Diesel starting problems

These International engines can be difficult to diagnose without the proper tools; namely Ford's I.D.S., or Navistar's DLC.

As for the o-ring the dealer was hinting at, they may have meant the o-ring on the fuel injection pressure regulator. I have witnessed these leak and cause difficult or no starting. This component is located at the rear of the engine below the turbo exhaust supply tubes. A specialty socket is needed to replace it (35mm 12 point socket which resembles an O2 sensor socket), although replacement is most likely unnecessary considering that your vehicle does eventually start. If this were indeed the culprit, your engine would not start. There is a test port next to this regulator to test oil pressure (bolt with allen head relief). A high pressure gauge which reads greater than 5,000 psi is necessary to test at this port. When your engine doesn't start, try checking what the oil pressure is at this port. A minimum of 3,000 psi is needed for the engine to start and 5,000 psi is prefered

Other sources of this problem could be the intake air temperature sensor, oil temperature sensor, or wiring compromises. It's a shame the dealer didn't want to spend the time necessary to pinpoint your problem. So glad I'm out of that crooked industry.


Posted on Dec 01, 2009

  • 603 Answers

SOURCE: Engine will not start. Coil is firing when

If coil is good and plugs are not - there's your problem. You can't have output of coil be good and plugs not work right. Something inbetween is wrong.

Posted on Dec 17, 2009

  • 32 Answers

SOURCE: 86 sunbird engine turns over **** want start

Check your oil pressure sensor located where the oil filter attaches,You might also want to check to see if it has a crank positioning sensor.

Posted on Dec 26, 2009

  • 1075 Answers

SOURCE: replaced fuel pump. module/coil, new

sorry but you have a timing problem,recheck the fireing order because that what is causing the backfire through the exhaust i think you are nearly there stop useing ether it will blow the head of the engine or blow a piston out through the engine take another good look at the timing have you set the module 360% the wrong way.adrian,,,,,,

Posted on Aug 11, 2010

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1 Answer

Toyota Noah with 1AZ FSE engine misfiring in cylinder 1 and 4 but 2 and 3 working properly


According to the computer, it seems the Noah was not made for USA market however, in this country, the first thing to check is the spark plugs themselves; and after that, the "coil pack", which is the individual coil for each spark plug.
Then test the distributor.
God bless your efforts.

Jan 06, 2017 | Toyota Cars & Trucks

1 Answer

I have a 2004 Toyota highlander leaking oil, oil light comes on. Could it be the rubber rings?


a 2004 toyota highlander V6

this should be your engine type
The 2GR-FE is a 3.5 L (3456 cc)

if leaks are that bad
always check the engine oil level before you drive off

fixing oil leaks on motors
degrease whole motor top and bottom

start with replacing the oil sender it may be the cause of the oil light coming on
after degrease
lay cardboard or paper under the car
take out for a drive and park over the paper over night

this pin points most of the oil leak locations
leaks from a V6 motor
rocker covers/ spark plug tube 0 rings.engine seals
cam seals
front and rear engine seals leak often
sump gasket can leak

if oil consumption or light on continues
can be a failing engine oil pump
or worn main bearings giving low oil pressure to the whole engine
you could be burning oil from worn piston rings
or hardened valve stems

a mechanic can fit an oil pressure gauge to the motor when hot
to check running oil pressure to confirm low oil pressure

if engine is worn out

it is possible to fit a lower mileage used motor to your highlander
its often cheaper than and engine rebuild









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Oct 13, 2016 | Toyota Cars & Trucks

1 Answer

My Toyota noar vyoxy 1AZ engine cranks but can not run and the fan runs non stop .What could be the problem?


Without seeing it i will hazard a guess and say there is a rub through somewhere in the engine control harness, i say this going on your info that the cooling fan runs non stop (indicating that the ecu thinks the engine is hot and will not allow the engine to fire up until it cools down. Start by disconnecting the temp senders to make sure they are not faulty and then carefully check the electrical harnesses for any rubthroughs on sharp edges.

May 05, 2016 | Toyota Cars & Trucks

1 Answer

How do I replace the oil pump on my 2001 Toyota rav4


You have to take the front covers off the engine and while you are that far into the engine you should replace the timing chains; there are kits of all parts needed available. Here is a link with lots of good information:
1az fe balance cam shaft

Jan 29, 2015 | 2001 Toyota RAV4

2 Answers

1AZ FSE spark and fuel delivery are ok but cant start. what could be wrong


Did you recently get a new key with out the chip? There is also a couple fuses that will stop your car. Check all fuses.

Aug 05, 2014 | 2005 Toyota Avensis 2.0

1 Answer

Wiring ecu DIAGRAM 1AZ-FSE


What is a "Help" tester??
Use an OBD2 sacnner and read to DTC?
Why did you unplug or R/R the ECU in the first place.
With just the information you provide your problem might be in the wiringharness or a bad ecu..

May 19, 2014 | 2006 Toyota RAV4

1 Answer

Noah 1az engine no start


First check the connections to 1 & 2 as well as the fuses. These engines are COP. You may need to replace the faulty coils. The plugs are Iridium and have a long life. Perhaps they have done their time.

Apr 29, 2014 | 2007 Toyota Hi-Ace 220

1 Answer

1az engine noah cant start due to no spark


It sounds like coil packs one and two are bad. Try swapping coils two and three and see if there is any difference.

Apr 29, 2014 | Cars & Trucks

1 Answer

I want the location of an engine immobilizer for Toyota Isis 2006 1AZ engine


what country
ISIS ?
not here. so cant help.
get your cars FSM from the dealer, and read that.
its all there, and is very complex.
he IMMO is married tot he PCM and BCM.
so.... lots of issues dealing with that.

get the FSM.

Feb 16, 2014 | Toyota Corolla Cars & Trucks

1 Answer

1994 toyota camry 3.0 engine misfiring 1,3,5 cyls.


cylinders 135 are on rear off engine by fire wall, does your car have all coils or only front three, if this is the case, if no oil found into spark plug tube try replacing wires first, if oil in them replace valve cover gaskets and gromets, dont forget a fresh set of wires.

Jul 21, 2013 | 1994 Toyota Camry

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