Overheating I went right down the street and my van started overheating. I let it cool down and took it to get looked at. No problems were found and didn't overheat again. What could cause this.

Front right as you look down on the engine. Follow the dip stick pipe down to it's bottom, (yellow). It will be to the right of where the pipe enters the engine block, fitted from left to right, (red). See photo.

i need to know if i can put 3oo m 99 fuel pump in a 98 bravada

Your water pump is bad.

it's overheating, for sure,
is coolant levels dropping? cold checked at rad cap?
"pulled over and found a hose to cool the radiator and hose near the thermostat,"
i can not understand this statement"above"
if it overheat only parked, check fan for full ops.
if overheats moving too, wont stay cool moving fast
then:
bad rad cap
bad thermostat , they have 7 year life says STANT. (and why)
belts slipping (to water pump)
rad cores blocked (IR thermo gun it) ask
water pump impellers rust 1/2 gone?

all this assumes no coolant loss, if you have loss, tell where.,
where it leans
ground
passengers toes (foot well)
engine oil pan? milky oil
if A/T TRANS, check it for milky too.

Have the codes read. This will start you in the right direction. Quit taking advice from people who are guessing. The van died , the check engine light is on. read the codes and then we can help. Unless you want me to guess also.

To verify if cooling system damage exists.
Drain the engine coolant.
Remove the intake manifold.
Remove the plastic heater core feed pipe.(located under the intake manifold).
If the coolant pipe cannot be removed after removing securing hardware, the VANOS banjo bolt must also be removed thus allowing additional clearance needed to remove the pipe.
Visually inspect the front (inside) of the coolant pipe.
If the plastic on the inside of the coolant pipe shows no signs of deterioration (smooth surface) the engine should be reassembled using new gaskets and O rings where necessary.
If the plastic on the inside of the coolant pipe shows signs of deteriorated (worn away, bubbling, ect) this is an indication that the engine has been severely overheated and these components must be replaced.....Cylinder head gasket,all coolant hoses,all plastic coolant pipes,coolant expansion tank and cap, radiator, water pump, thermostat, oil and filter....

Hope this is some help to you ??

Hi,
The codes you gave are:
P0720 = Output shaft speed sensor error P0731 = First gear incorrect ratio Replacing the Output shaft speed sensor should clear that up and help your transmission. Around $20 or so. The limp mode is probably caused by a faulty cam position sensor or crankshaft position sensor. Overheating: Did you verify that your cooling fan is coming on? Kicking into a higher speed with the A/C on? Thermostat of the correct heat range and installed with spring end into engine block? Coolant is not rusty looking or weak? (check specific gravity) Flush and refill system if not nice and green or orange/ is rusty looking. Water pump is circulating coolant properly? (open radiator and observe circulation, feel top hose for fluid surging) if not, bad pump. Any of those will cause overheating. Hope that helps! Please rate this answer.....Thanks, Mike

check the gear shifter to be in park

Check temp. sensor that screws into the block. It could be bad or wires disconnected.

something is strange here thats for sure ,firstly take thermostat out and put it in a saucepan of water and boil it to see if opens .,check the oil light switch and pull the rubber boot cover back to see if any oil is behind it ??.-You are buying trouble with a car with such a high mileage on it ,never buy anything with more than 50,000 miles or you are just buying someones rubbish