Top 20 1998 Chevrolet Venture Cargo - Page 2 Questions & Answers

well it sounds like you have an electrical problem as in a ground wire or connection. as far as the misfire on three only,have the coil checked and check that intake gasket around that cylinder with carb cleaner for air leak

The MLPS or manual lever position sensor is one of the vitally important inputs to the transmission control unit (TCU) of a vehicle with modern computerized automatic transmission. Every car made in the last 50 years has a switch similar to an MLPS. The names range from MLPS, to inhibitor switch to neutral safety switch.

Originally called a neutral safety switch when introduced to the automotive field because it's only duties were to make sure the car only start in neutral and park, and to activate the reverse lights when you shift into reverse.

As automatic transmissions became more technically advanced the MLPS duties increased. Now the MLPS or inhibitor switch is a key input to the TCM and ECM on every modern car I can think of. In fact, the switch, whatever name you call it has a great deal to do with controlling what gear your automatic transmission is in and how it shifts, and when the torque converter locks up, as well as it's original duties.

In most cases the switch is located on the side of the transmission, essentially hooked to the shift lever in the car. That way when you move the lever, itâ moves the switch to the appropriate gear range. some cars have a remote mounted switch, however the responsibility remains the same.
On transmissions with a side mounted switch, GotTransmissions.com often provides a new switch with their rebuilt transmissions where failure's are more prevalent. If it is not included with the transmission, it is a good idea to scan the car before any transmission work is done to make sure that did not cause the problem. At my shop, we almost always changed every one when we did a rebuild on a transmission. Either way, I would advise putting a new factory MLPS on your car if you do have to exchange a worn out transmission for a rebuilt transmission, unless it is cost prohibitive.
Most of the time when an MLPS goes bad, you will know you have something wrong with it. This is the time toâ have it checked by a qualified transmission mechanic at a competent transmission shop.

Many folks who own affordable hand held code readers can find out what the problem is before hand. In many cases if you are mechanically handy you can change it yourself. If you choose to take that route. don't forget to clear the code and re-drive the vehicle and recheck to make sure you cured the problem.

These particular switches are on the outside of the car as we mentioned earlier and are exposed to the road elements. Therefore causing a hi rate of failure. Geographically speaking, problems can occur from salt being used to melt snow in the north to water damage from a heavy rain.
Don't forget to properly maintain your transmission on a regular basis. Feel free to sign up for our GotTransmissions.com blog for free. You may find more money saving and drive-ability tips in your mailbox regularly.

Hope that helps
Regards

Check power to the switch and then the gear conection to the window.

you need to check the coolant in the radiator, not just in the overflow tank, you are describing a low coolant problem, the thermostat could be the resign you have no heat but it would not explain the low coolant light, remove the radiator cap ( only when the engine is cold ) and start the engine with the cap off and then fill up the radiator........HAVE FUN

Cleaning with alchol or sand paper didn't work. Turn on the manual override switch that cuts the power to the door. My 98 venture started doing that a few years ago. I had a few people look at it but no luck. Guess you're gonna have to do it the old fasion way. Drove me crazy. Good luck

bring tank down or jack car up high enough to put a bucket underneath and punture a hole in the tank .....remember no smoking whatsoever

You will have to contact your Chevy dealer.

The blower motor resistor has gone bad.Replacing it should return speeds back to normal.It is located on the passenger side under the dash by the blower motor.

spray it down with penetrating oil then put a socket on it and twist it back and forth continue spraying penetrating oil and working it back and forth till it comes out .let me know how it goes

around 80 bucks

there is a separate sensor for the gauge, but your radiator cap may be bad

hi, if this is the case on your vehicle, you need to get it to a shop to have inspected sooner than later. if this problem is the crankshft pulley out further than the rest of the pulleys, the harmonic balancer is coming apart most likely. if this does occur, it may spin off at very high rpms and tear up whatever gets in it's path insode the engine compartment. could be very costly. side note: i once saw a harmonic balancer come apart on a 9 second drag racing car and it ripped through the passenger seat area and went out the back window, not at all likely to happen to your van, since you're not reving at 7000 plus RPM's, but just an idea.

This is usually caused by carbon traces in the spark plug connector. You must pull the boot off of the spark plug and look down the boot for the carbon trace.
Do not pull the boot off of the plug by the wire as this will seperate the wire from the boot.
It is very apparent on the spark plug porcilin.
Regards
Rob

Clean all corrosion to get better voltage

cam sensor is located on top front of engine.Just in front of lower intake manifold.

Usually it is the high pressure line. They have compressed fittings, and over time they begin to leak, due to the high pressure.

there is a 3-way elec.switch locaterd in the same place you flip switch you can buy that switch at local parts store.Replace it

change the fuel filter if u have not changed it in the last 40 to 50 thousand miles. more often if u think u may have gotten water in your fuel tank. also put in some fuel additive in tank to help remove any moisture from tank.

The adjustment screws/nuts should be located either on the top of the headlamp assembly, behind the headlamp assembly, or near the frame rail by the radiator support.

You will have vertical adjustment screws for each independent beam (separate highs and separate lows, but will be same screw if highs and lows are the same bulb). You may also have additional horizontal adjustment screws as well

Park your car on a level ground 30 feet from a wall and measure the height from the ground to the bulb and mark on a wall (do this for highs beams and low beams if the bulbs are separate, if highs and lows are the same bulb, only do it for the lows)

For Low Beams: If the headlights read VOR, then aim the brightest part or cutoff part just below the mark on the wall. If it says VOL or nothing, aim them 2 inches below the mark on the wall.

For High Beams (if separate from low beams): Aim the headlight directly at the line you marked on the wall.

underneath driver door