FRS Wont Start - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

CG3TZ · 10-16-2020, 09:51 AM

So recently I blew a coolant line to the turbo and the car overheated reaching around 260°. I pulled over and let the car cool down before I drove home 5 minutes closely watching the temperatures. After I replaced the coolant line the car refused to start. When the Key is in the ON position it seems to have full power but when I turn the key to try and start it the car seems to just die. I replaced the battery and am still having the same issue. Does anyone know a fix?

x808drifter · 10-16-2020, 12:16 PM

AFAIK the the coolant temp only works if ther is coolant in the system.
Otherwise its just hot air.

Get a socket and breaker bar and see if you can turn the motor over manually.
No? Seized the engine.

Yes?
Something else.

CG3TZ · 10-16-2020, 12:18 PM

Quote:

Originally Posted by x808drifter

AFAIK the the coolant temp only works if ther is coolant in the system.
Otherwise its just hot air.

Get a socket and breaker bar and see if you can turn the motor over manually.
No? Seized the engine.

Yes?
Something else.

The engine is turning over but only on jumper cables and it’s just trying to catch the whole time. Key in all the way it just cranks and cranks but won’t catch. I don’t think it would crank if it was seized. It just won’t catch and start

humfrz · 10-16-2020, 12:39 PM

Old school asking here, what do you mean when you say the engine won't "catch"? Are you saying it won't "fire"?

Sorry to ask, but are sure you have gas in the tank?

CG3TZ · 10-16-2020, 12:41 PM

Quote:

Originally Posted by humfrz

Old school asking here, what do you mean when you say the engine won't "catch"? Are you saying it won't "fire"?

Sorry to ask, but are sure you have gas in the tank?

Yes I have gas in the tank it’s about 1/2 full. It’s turning over but not firing and running. It only cranks on jumper cables though. Not by itself.

pope · 10-16-2020, 12:52 PM

sounds like the engine is seized.

It seems that you are saying there is so much load on the starter that it can only turn the engine with the additional amperage from jumping it. If the starter is struggling to turn the engine it will not build enough speed and compression to fire the engine.

DarkPira7e · 10-16-2020, 01:11 PM

Do a compression test and you'll know for sure. Sounds like you have probably lost compression from warping the heads

CG3TZ · 10-16-2020, 05:46 PM

Quote:

Originally Posted by pope

sounds like the engine is seized.

It seems that you are saying there is so much load on the starter that it can only turn the engine with the additional amperage from jumping it. If the starter is struggling to turn the engine it will not build enough speed and compression to fire the engine.

I just got it to spin The crankshaft With a socket in a breaker bar. Pushing the Pistons therefore I don’t believe it to be welded to the block or anything wrong with the motor being seized

humfrz · 10-16-2020, 09:45 PM

Quote:

Originally Posted by CG3TZ

Yes I have gas in the tank it’s about 1/2 full. It’s turning over but not firing and running. It only cranks on jumper cables though. Not by itself.

OK, so, the engine won't turn over with just one battery but it will turn over with two batteries but won't fire?

How many volts does the car battery read (as read by touching the battery clamps, not just the posts).

I suggest you clean the battery clamps and the battery posts.

Also, check the big fuses on top of the battery to make sure they aren't blown.

Come back.

RZNT4R · 10-17-2020, 01:01 PM

Hard to crank and needs two batteries after getting overheated.

Doesn't mean your engine is seized, it obviously turns, but chances that it's very hurt are high. Get a bore scope down those plug holes. At least take the plugs out, if it doesn't crank easy at that point then consider that engine done.

CG3TZ · 10-17-2020, 01:24 PM

Quote:

Originally Posted by RZNT4R

Hard to crank and needs two batteries after getting overheated.

Doesn't mean your engine is seized, it obviously turns, but chances that it's very hurt are high. Get a bore scope down those plug holes. At least take the plugs out, if it doesn't crank easy at that point then consider that engine done.

We got it to bump start and it’s running fine no knocking or coolant spraying but still won’t stay alive on its own after it stops moving

CG3TZ · 10-17-2020, 02:26 PM

https://postimg.cc/3dhTZSZb

3 codes:
P0171
P0171PD
P0451PD

RZNT4R · 10-17-2020, 02:46 PM

System lean and purge flow. Check if you haven't melted the purge solenoid.

CG3TZ · 10-18-2020, 10:05 AM

Quote:

Originally Posted by RZNT4R

System lean and purge flow. Check if you haven't melted the purge solenoid.

Is there an easier way to check other than to take the intake manifold off?

10-16-2020, 09:51 AM	#1
CG3TZ Junior Member Join Date: Oct 2020 Drives: 2013 SBD Turbo FRS Location: Tampa, FL Posts: 8 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	FRS Wont Start So recently I blew a coolant line to the turbo and the car overheated reaching around 260°. I pulled over and let the car cool down before I drove home 5 minutes closely watching the temperatures. After I replaced the coolant line the car refused to start. When the Key is in the ON position it seems to have full power but when I turn the key to try and start it the car seems to just die. I replaced the battery and am still having the same issue. Does anyone know a fix?

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10-16-2020, 12:16 PM	#2
x808drifter LMGTFY Join Date: Mar 2016 Drives: 13 FRS, 91 Miata Location: Lava Town, HI Posts: 2,776 Thanks: 5,561 Thanked 3,646 Times in 1,625 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	AFAIK the the coolant temp only works if ther is coolant in the system. Otherwise its just hot air. Get a socket and breaker bar and see if you can turn the motor over manually. No? Seized the engine. Yes? Something else.

10-16-2020, 12:39 PM	#4
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 29,868 Thanks: 28,790 Thanked 31,816 Times in 16,425 Posts Mentioned: 708 Post(s) Tagged: 2 Thread(s)	Old school asking here, what do you mean when you say the engine won't "catch"? Are you saying it won't "fire"? Sorry to ask, but are sure you have gas in the tank?

10-16-2020, 12:52 PM	#6
pope has a funny hat Join Date: Feb 2020 Drives: 2014 BRZ Limited Location: MI Posts: 480 Thanks: 1,022 Thanked 613 Times in 271 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	sounds like the engine is seized. It seems that you are saying there is so much load on the starter that it can only turn the engine with the additional amperage from jumping it. If the starter is struggling to turn the engine it will not build enough speed and compression to fire the engine.

10-16-2020, 01:11 PM	#7
DarkPira7e Rust bucket enthusiast Join Date: Feb 2017 Drives: 2013 Turbo Firestorm FRS Location: Vermont Posts: 3,934 Thanks: 3,200 Thanked 4,095 Times in 2,045 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	Do a compression test and you'll know for sure. Sounds like you have probably lost compression from warping the heads

10-17-2020, 01:01 PM	#10
RZNT4R Professional Mechanic Join Date: Apr 2010 Drives: 2017 86 6MT Oceanic Location: Quebec, Canada Posts: 789 Thanks: 17 Thanked 633 Times in 371 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	Hard to crank and needs two batteries after getting overheated. Doesn't mean your engine is seized, it obviously turns, but chances that it's very hurt are high. Get a bore scope down those plug holes. At least take the plugs out, if it doesn't crank easy at that point then consider that engine done.

10-17-2020, 02:26 PM	#12
CG3TZ Junior Member Join Date: Oct 2020 Drives: 2013 SBD Turbo FRS Location: Tampa, FL Posts: 8 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	https://postimg.cc/3dhTZSZb 3 codes: P0171 P0171PD P0451PD

10-17-2020, 02:46 PM	#13
RZNT4R Professional Mechanic Join Date: Apr 2010 Drives: 2017 86 6MT Oceanic Location: Quebec, Canada Posts: 789 Thanks: 17 Thanked 633 Times in 371 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	System lean and purge flow. Check if you haven't melted the purge solenoid.

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