1994 toyota camry- recently replaced radiator, timing belt, water pump and thermostat- no heat when idling- lots of heat when reving the engine or driving

i owned the 1995 4 cyl wide body camry till the cooling system failed in heavy traffic and over heat stripped out the head bolt threads in the block

the toyota camry engine designation is a 5S-FE

water pump is driven by timing belt
behind timing belt covers
they have to be removed to get to the water pump

normally timing belt, seals ,tension er pully and water pump are replaced at the same time ..comes in a kit

i dont have the 5S-FE cooling system hot under pressure specs

so I cant answer which inline electric pump pressure is required to work on the 5S-FE


engine repair manual free download pdf
5S-FE 431 pages
http://www.turboninjas.com/camry/eg1.pdf
ENGINE MECHANICAL to page 144
EMISSION CONTROL SYSTEMS
MFI/SFI SYSTEM page 164
COOLING SYSTEM page 238
LUBRICATION SYSTEM page 268
DIAGNOSIS SYSTEM page 296
CIRCUIT INSPECTION page 336
water pump as a part

timing belt water pump kit
water pump
,location on the engine with timing covers removed

If it over heated before the thermostat, replace the radiator cap. Make sure the coolant (recommend just water until this is fixed) is full. When disconnecting the upper hose you lose all the coolant from the engine and about 1/3 of the coolant in the radiator. If you only full the radiator you don't have enough water. The new remonstrate needs to open for you to get enough water. In short- take radiator cap off. Start the engine. Fill radiator. Watch level for 5min, filling as needed.

Since he is going to replace the water pump and the timing belt and labor, the price is okay. thank you for using Fixya.

HI,
Don't know if you have 4cyl. or 6cyl. engine, but both are similar and require taking the front of the engine apart and the timing belt off. (timing belt replacement at this time is highly recommended.)
It is a moderately challenging job and requires that components be lined up precicely. A manual will give you a good step by step with the timing and reference marks of your engine's crankshaft and camshaft(s). They make a kit that has the water pump, idler pulleys and timing belt to do this job.
I just did one in a chrysler V6, took me about 8 hours. Actually $900 is a fair price to do the job, but you can do it yourself in the $300 range.....I used a Haynes manual, I would recommend that to you also.....MIke

You will need to go through the proceeder that you would to do a timing belt. Remove the drive belts, upper engine mount and bracket,jack the car up and place a jack stand under the car. Remove the harmonic balancer, then both of your timing belt covers. Drain the radiator,and start unbolting the water pump. Loosen the tensioner for the timing belt and remove the belt. You should be able to remove the remainder of the waterpump bolts and replace the pump. I would also recommend that you check your roller bearings,tensioner for any leaks, and replace them all if you have high miles on your car. Parts stores can get you a kit that carries the pump, belt,tensioner,and pulleys if needed.Hope this helps. Might have left out a step or two, but if something is in the way obviously you will have to move it.

An engine can overheat due to 2 causes:
1 - the water flow is too small - due to either a failing water pump (replace it) or a clogged radiator (run a radiator cleaning solution).
2 - the fan isn't working as it should (or not at all) - in your case probably not at all since its sensor seems to be not connected.

Most likley overheating when under load. usaully blown headgasket. also make sure fans are coming on. Out of spec timing can cause some overheating issues. Specs located on under hood label

YOUR radiator is clogged at higher speeds there is not enough flow thru radiator to cool down

check to see if the lower radiator hose is collapsing, if not then take the fan belt off and check for slop in the water pump. Somethimes the pump can go bad and not leak. let me know if this works out for you.

the drain plug is on the bottom of the radiator,simply follow top radiator hose to the engine at the end should be your thermostat which is definitely causing the over heating