1984celica w/auto trans is hard to start after it has warmed up cant find the problem
Replaced injectors, temp sensor, thermostat, cylinder head, water pump, radiator,distributor,spark plugs,wires,cap,rotor button,timing chain & tensioners,oil pump,cleaned the plentum, not sure what else I can do to get it to start-up rite turn on key spin it over three times turn it off & 3 more times turn it off & back on & 3more times it starts every time.
Hi,
It sounds as though your timing is off, just a little. Since you seem to be pretty handy, I won't bore you with the details, it should be easy for you to adjust it. If you don't know how... please contact me.
Hope that was helpful,
RSMITH972278
P.S. PLEASE RATE MY HELP !
Have you "reset" the computer on the car. When parts are replaced, the comp continues to run the vehicle on all the old settings which can drive you nuts because nothing you do will fix a problem. Usually, taking both battery cables off and waiting for 15 minutes will reset the computer. If this does not do it, then ask a dealer how to reset yours.
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might be the thermostat for the radiator to engine is sticking or broken for the heater problem. could be the fan/blower connections? so many things here? the heat could be the thermstat or the heater core are bad. the rattling noise could be in the trans-axle depending if auto or manual? also, a sensor could cause this noise? depending on where it is? find where it is located and then respond. could be oil not getting up to the top of engine where cam can make noise. so many possibilities.
trapped air. When temp needle climbs to 1/4 way, loosen coolant temp sensor to bleed off trapped air in cylinder heads. Air is gone once coolant starts to stream out, but only open slightly at a time. May have to do in increments as trapped air will cause rapid overheat
The PCM (power control Unit) controls the idle speed base in input from various sensors, one of them it's the coolant temp sensor, this sensor may be telling the computer that the engine it''s too cold and the computer will keep the idle up to help the engine warm up faster
any codes like air temp sensor, MAP or o2 sensors. A local auto parts place should be able to read the live data stream for you at no cost. Could just need an intake clean. I have seen a bad coil here and there(when wet). Great car.
Hi! Saft question But as your B20/23 is a safe engine the Cam/timing belt hasn't sliped a few teeth. Also make sure all relays are well seated in the base including the Big round one behind the ash tray/stereo. Have you replaced the fuel relay with the correct one? they differ, one has Copper Tangs the other has plated?
Check the wires from the cam sensor at rear.
Hope this helps?
Paul 'W'
Onyer~EDson(:0)~[><
Hello Trey,
Thank you for choosing FixYa.com for you answer I am David
I agree it could very well be a o2 sensor but it could be other things as well
such as
1
Inspect
Piston Ring Set
Worn or broken piston rings.
2
Inspect
Valve Stem Seal
Cracked or brittle valve stem seals allowing oil to enter combustion chamber.
3
Inspect
Head Gasket - Performance
Head gasket leaking coolant into cylinders
4
Inspect
Fuel Injector
Rich injector
5
Inspect
PCV Valve
Plugged or damaged pcv valve.
6
Inspect
Engine
Worn or scored cylinder block
7
Inspect
Piston
Worn or damaged piston.
8
Inspect
Valve Guide
Worn valve guides
i had the same problem after spending $500.00 for toyota to look at it they didnt fix it and suggested i it was the auto trans and i should get it overhauled costing thousands. i didnt believe them and started to do some of my own research into the problem. the coolant temp sensor at the rear of the intake manifold tells the ecu when the engine is at correct operating temp then allows the auto trans shift into overdrive. to rule out any problems with the auto trans i disconnected the plug to the temp sensor and went for a drive when the engine was cold and it shifted straight away into overdrive no problems. you can't leave this disconnected because the engine is hard to start when cold as the temp sensor also tells the ecu that it is cold and allows the cold start injector to inject more fuel into the engine on cold start up.to overcome this i cut the wire to the sensor plug and installed a switch which i installed into the centre console.now i start the car flick the swith use overdrive then swith back to normal after car has warmed up . engine fault light appers on dash when switched on but doesnt matter. i have had this modification for 2 years now no problems.
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