Question about 1991 Honda Accord

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Replaced thermostate now car won't start - 1991 Honda Accord

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If all you did was change the thermostat, you may have either left the coil/distributor unplugged, or forgot to put the ground wire back on at the thermostat housing. This is a very important ground. It serves the PCM, Injectors, etc. So if it's not there= no start.

Posted on Mar 19, 2014


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My 1997 Dodge Neon heats up sometimes, but there is not any pattern to it, as in sometimes it is hot out, sometimes cool, sometimes I am in town going slow and stopping and starting, and sometimes on the...

My neon would be bubbling in the resevoir when I stoped, I replaced the radiater, thermostate, hoses,
and it was still doing it? Finaly replaced the radiater cap and that solved the problem! Also you could have air in the system too? here is how to purge your system. Make sure your car is cooled down so you won't get burned, take off you radiater cap, Drain your antifreeze out of your radiater at the cockpit,about a gallon, close your cockpit, Jack the front end of your car up high so the radiater is higher than the thermostate housing, have a funnel ready to pour your antifreeze back in at the radiater cap throat, roll your windows down, and turn you heater on high! start your engine and slowly pour you
antifreeze back in untill full, when you start seeing it start to come out and can't get anymore in put your new radiater cap on, let the car run for 20 minutes with heater on high, after your fans kick on and stop, when engine is warmed up, turn your car off. Lower your car and check to make sure resivoir is at full mark. I hope this helps it worked for me!

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1 Answer

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follow the hose from the radiator and look for the roundish cover on top of the motor. Yes it is the logical way to start at the thermostate

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Theres only 3 things that it could be.1.radiator cloged or won`t hold water,2.waterpump is bad,or 3.The thermostate is frozen closed.Thats saying that you`r belts aren`t slipping and that you`r water hoses are in good shape.

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If this just started happening after replacing the thermostate then your thermostate is just opening then closing.Not staying open to maintain a seady temp. Your fan clutch may be going bad and not adjusting fan speed acordingly either.

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I do not have enough heat in my 1994 dodge ram truck

I expect the thermostate is stuck partially open not allowing the engine to come to proper temperature. Replace the thermostate found under the goose-neck (follow the upper hose back to the engine) under this piece is the thermostate. Be certain to clean all of the old gasket material away and use a new gasket. Watch to be ceratin the thermostate is not put in upside down, if this happens your issue won't be not enough heat but over heating.
I hope this may have been of help,

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2001 DTS Deville Overheating. Cant find leak. Checked waterpump and looks Ok. Only seen coolent at overflow when overheating. Cooling fans are running ok. Will try to find problem by starting by changing...

if you have a blown head gasket you would have a miss
the waterpump can look good and still be bad
after you replace the thermostate fill the radiator and leave the cap off start the car let it get too operating temp and check for flow if you have good flow shut the car off and and put a pressure terter on the raidator this will tell of and leaks

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How to change out thermostat in 1991 buck centry 3300

your thermostate is probably on the block sideways in whitch case you need to remove the air filter outr of your way and loosen the clamp on the thermostate housing. from there take out the 3 bolts holding the thermostat housing in place and remove it. Caution water/antifreeze will come out. take the thermostate out watching where the gasket has been placed and install the new one after cleaning the suface of the old gasket. sometimes it is good to use indian head gasket sealer. there will be 2 bolts on top and 1 bolt on the bottom under the housing. install the new thermostate tightn the hose replace your filter and fill the over flow resivor only to the point on COLD MAX. take the cap off the radiator start the car wait for the thermostate to open and fill the raditor the rest the way up. if it starts to boil over just shut the car off and let it cool than add more water *** needed...

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