20 Most Recent 1999 Pontiac Montana - Page 10 Questions & Answers

dont get rid of the dex cool. there made just for gm's and is better than the green. and the water pump should be on the back side of the motor half way down

Have you had the electronic engine control system scanned/tested for fault codes? it will need to be scanned to obtain the fault codes, this testing is key to finding out what the problem may be that is causing the engine to stall. The fault code test can be done free of charge by any Autozone auto parts store, Aamco transmission or Kragen/Oriley auto parts store. Ask for a "OBD2" (on board diagnostics generation 2) fault code test.

On 1999 Pontiac Montana 3.4 liter V-6 VIN "E" check this...Sparkplug Order... 1-3-5 2-4-6 Coils Order... 5-2 / 3-6 / 4-1If you need this diagram or other information, countact us in the previous link.Hope this helps and just keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.Thank you for using FixYa.Jose.

clock, radio & DIC display is out. What do I need to do to fix this problem? Is it some kind of fuse?

That is done with a special module called a J2534 ,that goes between your
vehicle & a scan tool

In most cases it is done by a dealer

Any shop with a J2534 can do it,if they are
willing to go online & pay the manufacturer
for a licence, for the info down load

There may be cases where you could take the PCM
& just have it flashed out of the vehicle

Flashing updates & getting your vans programs in, is
what your referring to

Hello jdubb_62,

Two sizes were used, the 18mm is most common then 15mm.

I hope this helps.

Regards,

Jerry

3 lines, feed, return and evaporative, if it is the line with just a hose clamp it will be connected to the fill tube

Hello
Your OBD II scanner doesn't read the BCM (Body Control Module) and likely that is what has the fault codes in it for your present problems. At this point I suggest you get a GM dealer to scan the BCM with the special scanner (called a TECH II) required to do the check and see what shows up.

sounds like either a window switch or a window motor has failed.

It gets a little complicated here but I will tell you what it can be. Devective dash voltage regulator, lost ground at sending unit, break in wire going to the dash, bad sending unit. Check the fuse, may fix it. Other then that, you will have to check these parts. If you have another question, write me back. I will help the best I can. Thanks for choosing FixYa.

try checking the fuses

How to get to the air conditioner unit in a 2002 montana van

You dont need a computer. You need a new Body Control Module. Located under the center console but forward towards the dash. A very common problem with these cars. NOT A USED ONE....A NEW ONE. They are VIN specific.

Hi.

Depending on the engine it is located either at the side of the engine block or behind the front pulley. Below both diagrams:

it could be a loose wire somewhere that is causing the problem, you will need to check all the wiring to see if you can find the problem......hope this helps.....cheers

sounds like ur wiper stalk n the pulse modulator on the wiper motor r both going out

134A. Recharging takes special tools and training, take to a shop. It is VERY easy to get badly hurt.