2005 rendezvous. Changed serpenntine belt and replaced leaking front seal when took it down off the jacks it will not start. Turns over but acts like fuel has been shut off. Is this an anti theft or fuel shutoff?

You would not have to remove the belt to work on the brakes.
But yes the belt would be removed to replace the pump.

It looks like you have a coolant leak. You need to fill it up and bring it to a mechanic as soon as possible and get the leak fixed.

this isnt a solution,just a suggestion.my husband,a fairly skilled home mechanic,recently did this.it took 12 hours over a 2 day period.you have to remove everything from the front of the motor,including the motor mounts,to access the pump.make sure you change the timing belt at the same time if it shows ANY signs of wear so you aren't doing the procedure again anytime soon..good luck!!

your power steering belt might be loose or may have stretched due to weather related issues, or may have the adjustment worked loose. suggest you adjust the tension on the belt[power steering belt] youneed to have it tightened. you may even need a replacement pump. is it leaking fluid onto the ground? if so, it may be a loose hose or a busted hose. if you are mechanically inclined, please repost with specifics on if it's leaking fluid or belt is squealing? otherwise,i suggest you have it looked at from a professional. hope this helps and if you need further assistance with replacement of power steering pump, or directions of the belt tension,just ask. we will be happy to assist!

It depends on which engine you have. It's between the cylinder heads either on the front (by the belt) or the back. Your sensor looks something like this:

yes, I just changed one of these recently. Had to take both front and bottom off engine. Very difficult repair, as there are no good jack points for the engine when you have all the motor mounts off.
Here is procedure I would recommend.
Remove starter and engine to transmission brackets front and back.
Remove transmission starter gear cover.
drain oil and remove oil pan.
put a block under the crankshaft and jack to release weight on motor mount.
remove front motor mount (by serpentine belt)
remove belt.
remove compressor and bracket.
remove crank pulley and vib damper.
remove timing cover. mark timing belt with direction of travel
loosen tensioner gear.
remove timing belt.
remove crankshaft timing gear and key.
remove seal and oil pump housing.
clean gasket surfaces.
replace seal and reverse procedure.

If you have questions, let me know.

Turns out this is a common problem for the Rendezvous.
I took it to a mechanic and after he tested to see if all the speed sensors were working with his handheld computer reader, (because there is no speedometer cable anymore) He reset the needle by turning the key about 25 times as far as possible without starting the vehicle. The speedometer needle came back a bit each key turn till it reached zero. It's been working fine since.

I had a similar problem with my 1987 ford escort. In this case I knew before hand what was going to happen. My water pump was going bad and loosened up the timing belt enough for belt to slip. Once that timing belt moves in position then things run bad and finally quit as mine did.

I am guessing this is the case for you also. I have changed out 3 timing belts on different escorts now, the first took about 2 days but the last took about 15 mins. The belt in my case only cost about 30 dollars.

Hope this helps

If the lower fan belt pulley you are referring to is the vibration damper or harmonic balancer, then that is the pulley that is attached to the engine crankshaft, and that pulley is what turns all the other pulleys on the engine. There is a seal on the shaft behind the pulley -the front main seal. This is what may be leaking oil, and if that is the case , the seal needs to be replaced.
If it is the front main seal, and you are going to tackle the repair, you need to get a Repair Manual for your vehicle and follow the directions for the fix.

JUST COMPLETED THIS JOB TODAY. MAKE SURE THE ENGINE HAS COOLED DOWN . IT TOOK APPROX 2 1/2 HRS. DISCONNECT THE NEGATIVE POST ON THE BATTERY. JACK UP PASSENGER SIDE FRONT AND SUPPORT ON JACK STANDS. REMOVE PASS. FROUNT TIRE. DRAIN RADIATOR INTO CONTAINER FOR PROPER DISPOSAL OR REUSE. USING FLOOR JACK PROVIDE SLIGHT TENSION ON OIL PAN WITH A SHORT 2 X 4 WOOD PIECE TO PROTECT OIL PAN. LOOSEN 3 ENGINE MOUNT BOLTS ON PASS. SIDE OF ENGINE COMPARTMENT. ALLOW APPROX 1" BETWEEN SHOULDER OF BOLTS AND MOUNT. LOWER ENGINE UNTILL BOLTS ARE SET ONTO MOUNT. REMOVE ENGINE SPLASH SHIELD INSIDE WHEEL WELL OF REMOVED TIRE. LOCATE WATER PUMP AND LOOSEN 3 PULLEY MOUNTING BOLTS (THIS IS WHILE BELT IS ON PULLEY) REMOVE SURPENTINE BELT AND CONTINUE TO FULLY REMOVE THE PUMP PULLEY. IT WONT COME OUT AS THE PUMP & PULLEY HAVE TO COME OUT TOGEATHER. REMOVE 5 WATER PUMP BOLTS AND CAREFULLY WORK WATER PUMP OUT BETWEEN THE ENGINE AND VEHICLE FRAME. CLEAN ALL MATING/GASKET SURFACES AND BOLTS. USING A SMALL AMOUNT OF TACKY SEALENT TO INSURE THE NEW WATER PUMP SEAL STAYS IN PLACE, THE INSTALL IS PRITTY MUCH THE REVERSAL OF REMOVAL.

GOOD LUCK, REMEMBER TO TIGHTEN ALL BOLTS TO MFR SPECS AND BLEED THE AIR OUT OF THE COOLANT AS REQUIRED.