Question about 1991 Toyota Corolla

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Where is the bypass hose for coolant on 91 corolla easy job

I have a 1991 corolla that has a leaking bypass hose (little hose on the manifold) per dealer $$334.00. plan to do myself. where is this hose located and hard hard is the job?? pictures and instructions would be nice.

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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

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SOURCE: 1991 Toyota Pickup Leaks oil


put new cylinder head gasket cover.clean the engine,if its check the cylinder head boltes and tight.

Posted on Sep 19, 2008

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SOURCE: slite oil leak from rear valve cover gasket per dealer $650.00

Hello. Let me try to assist you the best I can, with the hope of achieving a FixYa rating from you for my assistance.

Changing the rear valve cover gasket on your vehicle would be not considered a "real" big job, but IS a time-consuming job.
In order to remove the rear cover, you first have to remove the intake plenum. If you do not remove the plenum, you can't get to the valve cover bolts that are under the plenum. After the plenum is off, the valve cover is easy to access. You will also need to replace the intake plenum gasket, if you do the job yourself.

I hope this information has satisfied your question.
Thanks for choosing FixYa for assistance!

Posted on Jan 28, 2009

alicantecoli
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SOURCE: pressure return hose repair for 1997 toyota corolla

no need to bleed it at all,just turn steering from left to right and its bled.never done one but it depends on whats involved and what you need to remove to get at it.Also over the pond anything thats not come from motor city they dont know how?? to do it.Just like in europe if its american with auto box then its telephone numbers.Dont be scared just get a new pipe and allow a saturday morning to change it but make sure you borrow a set of pipe spanners first,like a ring with a **** in the end so you dont round off the nuts.Think they are either 16mm or 17mm heads.

Posted on Jan 31, 2009

  • 2920 Answers

SOURCE: coolant leaking on manifold, steaming.No hose or radiator leak.

i think its going to be the head gasket duto the way its leaking coolant. one of the water jackets maybe i would have it checked to be sure but it sounds like head gasket

Posted on Feb 03, 2009

  • 14 Answers

SOURCE: VSV replaced hard start 2001 toyota corolla

most of the time hard to start could meen bad battery week or coroded cables of a high amp draw in the starter motor

Posted on Aug 03, 2009

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Why over reving in idle?


too much air can be caused by binding throttle cable/linkage try disconnecting it. Next would be cold air bypass that lets extra air in for cold weather and initial startup. It would be located on the throttle body
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i moved you to Prizm.
ok this car really is Corolla. so... makes for getting help and parts 10x better than other Geo, junk.
savvy dont matter, all that matters is, which engine, and willing to work. weve all been there and to those hoses, some cars are horrific hard to fix. (reach) best is 10year old kids arms.
here are the 2 engines.
4a and 7a.
look here, for photos of all that.

ill GUESS Toy 4aFE
and go to toyota dot com parts department as my example

http://www.toyotapartsoverstock.com/showAssembly.aspx?ukey_assembly=490112&ukey_make=1060&ukey_model=15430&modelYear=1993&ukey_category=21644&ukey_driveLine=6617

see that? it all there. every 4A hose.
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It is usually caused by the air leakage in the intake manifold. Check the following:
1. Check all the vacuum hoses from around the throttle body.
2. Under the throttle body there are three rubber hoses. Two pipes are of the same size and are used for the coolant circulation through the idle air control valve and the third one is a bit thicker than the two. It is used as the air release tube for the idle air control valve, (if the valve is separate from the throttle body). If the idle air control valve is separate type, it is attached to the side of the surge tank, other wise it is fixed to under the throttle body with Philips type screws (4 mm) as a single unit.
3. To locate the intake air leaking source, take a vacant mineral water bottle, fill it with tap water, make a small hole on the cap with a bag sewing needle, invert it and spray water by pressing the bottle with little pressure and pointing it towards a suspected area. If there is any air leaking from around the intake manifold it will produce an audible suction noise. Locate the area and fix it.
4. Remove the idle air control valve, clean and free it up and install it back.

Dec 10, 2013 | 1991 Toyota Corolla

1 Answer

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I have a 1991 Toyota Corolla and I don't know what is wrong with my fuel hose, it leaks when I make a right, and when I fill the tank to a point. And I can't locate the problem, all there is, is a stench...


you need to get your car to a car shop so they can put it on a lift to see what is wrong. fuel leak can be very dangerous.
there is a fuel pump gasket on the top of the tank
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