How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Mike S. Your Own Question
Mike S.
Mike S., Chevy Mechanic
Category: Chevy
Satisfied Customers: 7155
Experience:  ASE Certified Master Technician
20625509
Type Your Chevy Question Here...
Mike S. is online now
A new question is answered every 9 seconds

1999 chevy cavalier getting spark and gas, cranks and sounds

Customer Question

1999 chevy cavalier getting spark and gas, cranks and sounds like its going to start, but doesnt. 150lb pressure on all 4 cyl. Replaced
Camshaft,crankshaft sensors . Replaced fuel pressure regulator. Spark plugs. Fuel filter.and fuel pump.when cranking the engine speeds up as if its going starts but acts like an old engine when the timing is too low.
.
Submitted: 1 year ago.
Category: Chevy
Expert:  Mike S. replied 1 year ago.

That just about leaves the timing chain, doesn't it. Which engine is this, the 2.2l, 2.3l or the 2.4l?

Customer: replied 1 year ago.
2.2
Customer: replied 1 year ago.
is there anything or any other way to check timing before condemning the timing chain? we removed fuel pump relay and put starter fluid in throttel body. gets no sputter in thrott!e body when cranking, just speeds up and hits a little
Customer: replied 1 year ago.
when the pan was off i couldn't get to it much, one finger , and could not feel slack in the timing chain? imagine the night mare of
taking it loose finding timing marks align :-)
Expert:  Mike S. replied 1 year ago.

A compression test is about the only way.

Expert:  Mike S. replied 1 year ago.

if need be, here are the instructions for the 1999 Chevrolet Cavalier 2.2 Timing Chain Cover & Seal, plus the 1999 Chevrolet Cavalier 2.2 Timing Chain & Sprockets.

Customer: replied 1 year ago.
on compression the pressure is holdin at 150 pounds on all 4 cylinders
Expert:  Mike S. replied 1 year ago.

Yeah, I see you had already said that before, sorry I didn't remember that.

Retrieve the computer codes, remove a spark plug and smell if it's gas fouled already.

Customer: replied 1 year ago.
the only thing that it said when i pulled code was evaporative emission failed.we stopped the gas from tank and it does the same thing with starter fluid
Customer: replied 1 year ago.
can u think of any signal that maybe cant reach the ecm that could effect timing?
Customer: replied 1 year ago.
not trying to bug you , it just does not behave like bad timing chain
Expert:  Mike S. replied 1 year ago.

Yeah, I agree of the compression would have been lost.

I'll look but let me ask, when was the last time this engine ran?

Are you sure of the firing order?

How do you have the firing order now?

Customer: replied 1 year ago.
about 1year ago
Expert:  Mike S. replied 1 year ago.

You should be able to hook up a stroboscopic (dynamic) timing light on this engine and see if the timing is off while cranking.

Expert:  Mike S. replied 1 year ago.

What was done 1 year ago?

Customer: replied 1 year ago.
2,3,1,4
Expert:  Mike S. replied 1 year ago.

Here is the paragraph about the ICM,

Ignition Control Module (Icm)

The DIS module or ICM, as it's called in later years, monitors the crankshaft sensor signal, then, based on these signals, sends a reference signal to the powertrain control module (PCM) so that correct spark and fuel injector control can be maintained during all driving conditions. During cranking, the module monitors the sync-pulse to begin the ignition firing sequence. Below 400 rpm, the module controls the spark advance by triggering each of the ignition coils at a predetermined interval, based on engine speed only. Above 100 rpm, the PCM controls the electronic spark timing (EST) and compensates for all driving conditions. The module must receive a sync-pulse and then a crank signal, in that order, to enable the engine to start.

The DIS module or Ignition Control Module (ICM) is not repairable. When a module is replaced, the remaining DIS/ICM components must be transferred to the new module.

The IC system is a series of circuits between the ICM and the PCM that are used to send information about the ignition system. This system includes the following circuits:

  • 7X Reference -The CKP sensor generates a signal to the ICM, resulting in a reference pulse which is sent to the PCM. The PCM uses this signal to determine crankshaft position, engine speed and injector pulse width. The engine will not start or run if this circuit is open or grounded.

  • Reference low-This wire is grounded through the module and insures that the ground circuit has no voltage drop between the ICM and the PCM which may affect engine performance.

  • Ignition control 1 & 2 -The PCM sends the Ignition Control (IC) pulses to the ICM on these circuits. These signals are similar to the 7X reference pulse except that the PCM uses sensor inputs to determine the pulse timing to control spark advance. When the PCM receives the 7X signal, it will determine which pair of cylinders will be fired. (1-4 or 2-3). It will tell the ICM which cylinder pair will be fired.

Expert:  Mike S. replied 1 year ago.

The firing order for the vin 4 2.2l is supposed to be 1-3-4-2.

Expert:  Mike S. replied 1 year ago.

Are the ignition coils at the side of the engine or at the rear of the engine cause I am seeing 2 different ones.

Customer: replied 1 year ago.
ok gotta study that one:-)
Expert:  Mike S. replied 1 year ago.

From standing directly in front of the car looking back at the engine the #1 cylinder on passenger side and going the 2,3 then 4 on the drivers side, looking at the coil wires, in what order are they from front to back?

You may have them backwards!

Customer: replied 1 year ago.
Is That All That I need to Know pertaining to starting? ( sorry if that doesnt sound right:)
Customer: replied 1 year ago.
at the side
Expert:  Mike S. replied 1 year ago.

You must answer my question, I have moved on.

Expert:  Mike S. replied 1 year ago.

Ok, now in what order are they?

Expert:  Mike S. replied 1 year ago.

Are you looking?

Customer: replied 1 year ago.
nothing was done when it first quit
Customer: replied 1 year ago.
yea 1342
Expert:  Mike S. replied 1 year ago.

From front to back or back to front?

Expert:  Mike S. replied 1 year ago.

Either way is wrong though.

Customer: replied 1 year ago.
from the front
Customer: replied 1 year ago.
which way is right?
Expert:  Mike S. replied 1 year ago.

2314

Expert:  Mike S. replied 1 year ago.

Like this,

Customer: replied 1 year ago.
im sorry thats what i meant
Expert:  Mike S. replied 1 year ago.

Wait a minute. That diagram don't look right.

Expert:  Mike S. replied 1 year ago.

What?

Customer: replied 1 year ago.
thanx fo diagram
Customer: replied 1 year ago.
07 January 2016 12:00
thanx for diagram
Expert:  Mike S. replied 1 year ago.

is this the base, ls, rs or z24?

Customer: replied 1 year ago.
yea coil pack is on right side
Customer: replied 1 year ago.
dont know , what base
Expert:  Mike S. replied 1 year ago.

Coil pack in the back of the engine when standing in front of the car, correct?

Expert:  Mike S. replied 1 year ago.

Not like this,

Expert:  Mike S. replied 1 year ago.

See the difference?

Customer: replied 1 year ago.
thats it exactly
Expert:  Mike S. replied 1 year ago.

I am getting it as 2,3,4,1 from front to back, because if you look at the first diagram with the coils in the back they have 1 and 4 numbered wrong or coil4 going to cylinder 1 and coil 1 going to cylinder 4. It's no wonder with mistakes like this in the repair manual that people get confused.

Customer: replied 1 year ago.
yea thanx
Expert:  Mike S. replied 1 year ago.

Well, then that has to be it, the wrong firing order.

Expert:  Mike S. replied 1 year ago.

Let me know if it starts now when getting the firing order correct.

Customer: replied 1 year ago.
ok
Customer: replied 1 year ago.
i had it wired right i just read the order from rear to front, nothing has changed.
Expert:  Mike S. replied 1 year ago.

So what is yours from rear to front then?

Expert:  Mike S. replied 1 year ago.

It's wrong, you said "2,3,1,4 and yea 1342 from the front" Then you said you were reading back to front. So that would mean either 4132 or 2431. All are wrong.

It should be 1,4,3,2 from back to front.

Expert:  Mike S. replied 1 year ago.

Get it now?

Customer: replied 1 year ago.
ok , i appreciate the info u sent. if you have more icm info that u can upload , that i can bang my head on ples do. gonna go head and pay u for this session. thanx
Expert:  Mike S. replied 1 year ago.

I still think it's a firing order problem.

Customer: replied 1 year ago.
ok ,when I get some of this work out , im gonna get back on this one . Were good.
Expert:  Mike S. replied 1 year ago.

Don't forget to rate me well so I get credit.

Customer: replied 1 year ago.
sure, i appreciate what you done
Expert:  Mike S. replied 1 year ago.

You are welcome.

Expert:  Mike S. replied 1 year ago.

Have you figured out how to rate me or are you waiting for me?

Expert:  Mike S. replied 1 year ago.

JustAnswer® is not a free service. I work hard to make sure you're satisfied with my service and I only get credit for my answers based on your rating. Once you're satisfied, please leave a positive rating.