1996 Pontiac Grand Am Spark Plugs

Tiny
GRANDAM96
  • MEMBER
  • 1996 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 95,000 MILES
I am only getting fuel to 2 spark plugs out of 6. Do you know what the problem could be?
Do you
have the same problem?
Yes
No
Friday, June 5th, 2009 AT 10:43 AM

9 Replies

Tiny
OBXAUTOMEDIC
  • EXPERT
Hello,

Ok, is it fuel or Spark that you are only getting to 2 plugs?

If spark then posibly you have to coils that are bad.

If fuel then it could be a weak fuel pump or you have 4 bad injectors.

Post results.

.
Was this
answer
helpful?
Yes
No
Friday, June 5th, 2009 AT 10:48 AM
Tiny
GRANDAM96
  • MEMBER
Only 2 plugs are getting wet from fuel. The other 4 are dry.
Was this
answer
helpful?
Yes
No
Friday, June 5th, 2009 AT 10:51 AM
Tiny
OBXAUTOMEDIC
  • EXPERT
Ok, then the other plugs are firing properly that is why they are dry. The 2 plugs that are wet have a problem.

Either the plugs or plug wires are bad or the injectors are bad or dirty or possibly a problem in the PCM (Computer).

When was the last time you had a tuneup? Plug and wires.

Is your engine light on? If so will need to see about getting codes pulled.

.
Was this
answer
helpful?
Yes
No
Friday, June 5th, 2009 AT 11:03 AM
Tiny
GRANDAM96
  • MEMBER
The plugs and wires have been replaced 2 months ago. Yes, the engine light is on. It was put on the computer for codes and it kept coming up with a different engine type for the vehicle. It is a 3.1 and it is coming up with something else.
Was this
answer
helpful?
Yes
No
Friday, June 5th, 2009 AT 12:16 PM
Tiny
OBXAUTOMEDIC
  • EXPERT
What were the codes. And what engine was it coming up with? That year only has a 3.1L V-6 and a 2.4L 4 cyl.

.
Was this
answer
helpful?
Yes
No
Friday, June 5th, 2009 AT 2:00 PM
Tiny
GRANDAM96
  • MEMBER
It was 2.4 Liter and no codes came up at all.
Was this
answer
helpful?
Yes
No
Friday, June 5th, 2009 AT 2:09 PM
Tiny
OBXAUTOMEDIC
  • EXPERT
Ok, have you owned since new? If not do you know if engine swap has been done.

That seems to be the issue here, there has been an engine swap done and computer hasn't been changed or reprogrammed. At least I believe, will ask for other tech for there input.

.
Was this
answer
helpful?
Yes
No
Friday, June 5th, 2009 AT 2:40 PM
Tiny
GRANDAM96
  • MEMBER
Yes, it is not the original motor.
Was this
answer
helpful?
Yes
No
Friday, June 5th, 2009 AT 3:11 PM
Tiny
M_H_RITZEL
  • EXPERT
Hi this is Mike R. If you have had the car since new and you have a 2.4L you have a 4 cylinder car. If you bought the car new can you furnish a vin number, this will tell us what engine is in the car when new. And so we can figure out if it is a 4 cylinder or the 6.3 L engine which is a 6 cylinder engine, there were no other engines that came with that car. I agree with obxautomedic that the dry cylinder are the ones that are firing. Wet cylinder means there are bad injectors or clogged
injectors. If the car does run you can try resetting the ecm by disconnecting the positive side of the battery. After leaving it off for a minute re attach it. After driving it for a few miles the computer will rest. The computer has to be correct with the engine so if there was a engine swap and the the computer was not changed from the 4 cyl to the 6 the computer will read the 4 cyl codes.S
Was this
answer
helpful?
Yes
No
Friday, June 5th, 2009 AT 4:36 PM

Please login or register to post a reply.

Recommended Guides