2003 impala tune up
tom williams

Oxford, OH

#1 Jan 23, 2012
my haynes manual and my eyes say that changing plugs and wires on my new to me 03 impala will be difficult.does anyone have any tips? it misses and gets the mileage is not as good. i pulled the easy plug and the electrode looks thin and burnt
Nation of Imbeciles

San Antonio, TX

#2 Jan 23, 2012
tom williams wrote:
my haynes manual and my eyes say that changing plugs and wires on my new to me 03 impala will be difficult.does anyone have any tips? it misses and gets the mileage is not as good. i pulled the easy plug and the electrode looks thin and burnt
You need to take your time and you can get it done. Second, to access the rear plugs, you place the car in neutral with the emergency brake on. Then you disconnect the two front engine mounts in order to rotate the engine forward. On one of the two mount arms is an extra bolt hole about an inch behind the actual mount hole. Using a crowbar at the base of the left mount, you pull the engine forward and secure it in the forward position by aligning the rear bolt hole with the mount hole of the frame. This gives you complete access to the rear engine area. The bolt torque for the mounts upon reassembly should be 30 or 35 ft lbs.
Rick

Richmond, CA

#3 Apr 1, 2012
On my 2005 Impala, with the 3.4 engine, the intake had to be removed to gain access to the rear plugs. The intake was leaking coolant and oil anyway onto the exhaust manifold. I knew the intake had to be removed to fix the leak. At the time of removal, I asked the shop to replace the spark plugs. The entire job almost cost $1,200.00.

A few weeks later, I had a thermostat problem on my 2003 Impala with the 3.8. The shop pulled the spark plugs, and said they needed repacing when the thermostat was being replaced. They were able to do the job without removing anything from my 2003 Impala to gain access to the rear spark plugs. They also did not have to tilt the engine on my 3.8 litre engine Impala. Now, I have discovered the rack and pinion is leaking again four months after the repair warranty expired.
Nation of Imbeciles

San Antonio, TX

#4 Apr 3, 2012
Rick wrote:
On my 2005 Impala, with the 3.4 engine, the intake had to be removed to gain access to the rear plugs. The intake was leaking coolant and oil anyway onto the exhaust manifold. I knew the intake had to be removed to fix the leak. At the time of removal, I asked the shop to replace the spark plugs. The entire job almost cost $1,200.00.

A few weeks later, I had a thermostat problem on my 2003 Impala with the 3.8. The shop pulled the spark plugs, and said they needed repacing when the thermostat was being replaced. They were able to do the job without removing anything from my 2003 Impala to gain access to the rear spark plugs. They also did not have to tilt the engine on my 3.8 litre engine Impala. Now, I have discovered the rack and pinion is leaking again four months after the repair warranty expired.
You do NOT have to remove the intake in order to replace the plugs.

You need to take your time and you can get it done. Second, to access the rear plugs, you place the car in neutral with the emergency brake on. Then you disconnect the two front engine mounts in order to rotate the engine forward. On one of the two mount arms is an extra bolt hole about an inch behind the actual mount hole. Using a crowbar at the base of the left mount, you pull the engine forward and secure it in the forward position by aligning the rear bolt hole with the mount hole of the frame. This gives you complete access to the rear engine area. The bolt torque for the mounts upon reassembly should be 30 or 35 ft lbs.
Nation of Imbeciles

San Antonio, TX

#5 Apr 3, 2012
Rick wrote:
On my 2005 Impala, with the 3.4 engine, the intake had to be removed to gain access to the rear plugs. The intake was leaking coolant and oil anyway onto the exhaust manifold. I knew the intake had to be removed to fix the leak. At the time of removal, I asked the shop to replace the spark plugs. The entire job almost cost $1,200.00.

A few weeks later, I had a thermostat problem on my 2003 Impala with the 3.8. The shop pulled the spark plugs, and said they needed repacing when the thermostat was being replaced. They were able to do the job without removing anything from my 2003 Impala to gain access to the rear spark plugs. They also did not have to tilt the engine on my 3.8 litre engine Impala. Now, I have discovered the rack and pinion is leaking again four months after the repair warranty expired.
Then the mechanic was a tiny handed Oriental guy or they buster their knuckles doing it the hard way. The GM repair manual from HELM INC recommends rotating the engine, about 15 degrees, in order to service the plugs.
bossmanB

United States

#6 Mar 20, 2014
My 2003 chevy impala 3.4L keeps shutting off and barely accelerates its also loud sounding. anyone else have this problem and any suggestions i have tried so much and nothing is working.

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