2002 Monte Carlo will not start. HELP

Montecarloss02 · Member

2002 Monte Carlo will not start. HELP

NYMontess · Administrator

Welcome to the NYMCC.

It could be the fuel pump.
You best bet would be to take it to a good shop and have them take a look at it.
It could be something else besides a fuel pump.
Good luck

Montecarloss02 · Member

Thank You. I love my 2002 Monte Carlo. Hoping and Praying that is all it is. I touched the gas manifold under the engine, and it only spills over, does not spray or squirt over. No pressure built up.

NYMontess · Administrator

We all love Montes to,
We own 2, an 86ss(mine) and an 01 ss(wifes).

Montecarloss02 · Member

****Update**** I went outside and my car started right up just like yesterday morning. So I started the engine up, while it was in park, I pressed down on the gas. While doing so, I noticed that the RPM needle was dropping was it hit four and kept doing so and then the car would shut off. Starting to think it is either the Catalyic Converter or the Fuel Pump.

firebird_1252 · Post Whore in the making!!

its bouncing off 4k because its hitting the rev limiter.

its not the cat, if it was the cat it would be doing it all the time. when its acting up can you hear the fuel pump whining/humming?

Montecarloss02 · Member

I can hear the fuel pump. So I know it's not the fuel pump.

firebird_1252 · Post Whore in the making!!

can you hear the fuel pump priming after the car dies? ie: trying to start it again? whats the check engine light doing?

Montecarloss02 · Member

I keep trying to start it, and it will not start again. The check engine light is not coming on at all. I hear the fuel pump making a small humming noise like it's getting into start up mode, almost like gearing up.

firebird_1252 · Post Whore in the making!!

ecm is bad if no engine light.

Montecarloss02 · Member

Ecm?

firebird_1252 · Post Whore in the making!!

the computer.

PitchBlackSS · Treasurer

not necessarily, could be a couple things that the PCM wont trigger a code for.

Fuel Pressure Regulators are known to go bad on these cars and / or Fuel filter may be clogged

I'd start there if you are doing the work yourself. Filter is cheap, $12-$15. You may need a special tool to remove it, I dont remember.

If you bring it to a mechanic, they can check the fuel pressure before and after the regulator. If pressure is good before the regulator, pump is fine. If its bad after the regulator, regulator is bad.

firebird_1252 · Post Whore in the making!!

scott he said the ses light is not coming on at all. to me i think thats the pcm/ecm whatever lol. could the plugs be lose?

Montecarloss02 · Member

I am a she, lol. I started up the car again this morning and the check engine light came on.

PitchBlackSS · Treasurer

Montecarloss02 wrote:

I am a she, lol. I started up the car again this morning and the check engine light came on.

ok, thats a plus...lol. have it scanned, most parts places will scan for free. I know Autozone does. Write down the code, will be something like "P0125". That will tell us where to look.

Rob, if the PCM is totally fried, the car wont start at all, but it could be on its way out. However, Ive seen more regulators fail than PCM's. The PCM is pretty solid in these cars.

firebird_1252 · Post Whore in the making!!

Montecarloss02 wrote:

I am a she, lol. I started up the car again this morning and the check engine light came on.

sorry! lol where are you located? are you on long island?.

scott when she said no ses i figured it'd be pcm. could the connectors be bad/dirty/lose?

Montecarloss02 · Member

I am in Atlanta,

PitchBlackSS · Treasurer

Rob, anything's possible, unless the PCM was taken out of the car before, I doubt the wires are loose. It's pretty secure, kept clean and dry up in the air box. The connectors are actually bolted into the PCM with some rather large bolts.

I've seen more than a few Impalas with faulty FPR's (fuel pressure regulators) that never set off the MIL (malfunction indicator lamp). It may set a code, but not all codes will illuminate the MIL. Have no idea what GM was thinking on that.

firebird_1252 · Post Whore in the making!!

Montecarloss02 wrote:

I am in Atlanta,

let me ask a few buick people in atlanta if they know any gm techs that could look at it.

Montecarloss02 · Member

So, after the mechanic took a quick diagnosis of my car. He said the ECM is coding and then on top of that he asked if I was having problems with the alarm. Well after reading and researching. This is all in conjuction with the ECM and the PCM. So most likely I am going to have to replace the ECM, which is not a big deal. Found a really good deal on Amazon.com. I am having the fuel filter changed and some other minor work. all in all. everything including parts should not cost more the 660.00. Will update when he puts blacksexy on the computer tomorrow.

PitchBlackSS · Treasurer

The car doesnt have an ECM, it has a PCM. You bought one off Amazon??? It has to be set for your car. The VIN has to be programmed in, the correct BIN file has to be uploaded and the SERV code on the PCM needs to match your original one. PCM's are sold by many performance companies with mild tunes in them, all set for your car, around $100. Fuel filter is about $15-20 and is a 5 min install.

02 Monte has 2 computers PCM (performance control module) controls the engine, transmission, etc. And they have a BCM (body control module) controls door locks, windows, lighting, etc.

Tell us the codes the computer has stored.

Montecarloss02 · Member

My mechanic called the PCM is going out in the car.

twomanymontes · Moderator - Monte Hunter Lead Investigator

PCM's rarely just go in cars these days. Something usually shorts them out. Make sure who ever replaces the PCM checks to be sure everything else is good otherwise you'll be back in the same boat. And Scott is right, the PCM needs to be Flashed or programed to the vehicle. If not the car won't start, basically a blank canvas until it is. Dealers use a Tech II and a computer to Flash the PCM's memory.

Don't forget if the BCM is on the way out, which is very common, it won't send a start signal through the Theft lock to allow the car to start. It might Crank but won't fire.

Diagnosing over the net is nearly impossible these days, Best bet it to take it to a well known and reputable repair shop and have it diagnosed properly

Jimcap · Veteran Member

If that is'nt the problem try looking at the contol module under the coil packs!! ive had mine go out and it did the same studder and died like you mentioned!! Advance Auto or Auto Zone should be able to test it..