86 startup issue - Toyota Nation Forum : Toyota Car and Truck Forums

Mx73_cressida · 02-03-2009, 07:37 AM

well i just bought a 86 cressida but it doesnt want to start up in the cold, i was told the prob was the engine coolant temp sensor and replaced it but she still doesnt want to start in the cold and now it doesnt want to start at all can anyone help me here thanks

***kamesama980*** · 02-04-2009, 11:26 PM

try starting it while flooring the gas pedal. should cut the fuel pump and clear any fuel out of the cylinders. do that for 8-10 seconds then let off the gas. all the cranking could have flooded it.

Could be a number of things: large vacuum leaks, timing, various sensor failures. the engine needs 3 things at the right times to run: fuel, air (compression), and spark. pull the big high tension lead from the coil to the distributor and hold it near the fender (away from any electronics or fuel components) and watch while cranking...see if you get spark. after cranking, pull the plugs. gas smell is good. plugs that look like they were dipped in gas is bad. lastly, get a compression test. you can do it yourself, it's not hard. if you want to get more in depth, check ignition and cam timing.

Mx73_cressida · 02-05-2009, 03:51 PM

thanks but i dont think the problem has to do with the motor flooded with fuel cause the motor shut off on me while i was driving and diddnt want to start up again just made this tic tic tic noise

Bobbin · 02-06-2009, 12:25 AM

Your first post indicated it could be a clogged cold start injector, your second post indicates something else. When the engine is cold the injector squirts gas into the intake, making it easier to start the engine. The colder the weather the worse the problem.

***kamesama980*** · 02-06-2009, 11:35 PM

I have the CSI disabled and detached from fuel. the car starts just fine. the CSI just makes it start faster/easier.

If it's a fast clicking noise without actually turning the engine over when you try to start it, it's the starter solenoid which means not enough battery power. have the battery and alternator tested. if the power steering starts leaking, it drips right on the alternator. if the engine oil starts leaking from the hot-dog shaped passageway in the front of the head, it drips on the alternator. it's possible the alternator got clogged with oil and stopped charging the battery and when you didn't have enough juice left to run the electronics (namely the computer and fuel pump) it died. I've had it happen

Mx73_cressida · 02-06-2009, 11:43 PM

o i see now the car was dripping some oil before so that may have been the reason imma check into it tomorrow thanks.

Mx73_cressida · 02-07-2009, 02:12 PM

ok so i fixed the whole starting up issue on it turned out the battery was dead cause oil was clogging up the alternator (battery looked new so diddnt bother testing it before) already cleaned up the alternator and bought some new gaskets to help with the oil leak issue. gunna address the CSI tomorrow but right now just glad it runs again. thanks for u guys help

***kamesama980*** · 02-07-2009, 09:58 PM

no prob. I found out about that issue with the alternator the hard way with my 88. BTW CRC electrical parts cleaner with the pic of a starter and alternator works great without leaving any residue. I'd empty a can with the engine not running then a little more while it was running (careful to do it with fire retardant nearby and as soon as you start the car (before the manifold is hot))