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2005 chevy impala SS 3800 Supercharged. The PSI Boost gauge will not register above -10 PSI even when accelerating on the highway. Needle never moves from spot when the car is shut off.

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The boost gauge is a vacuum gauge, probably connected by a hose. At this age, hoses fail. Check all hoses, they are all connected to the same intake, so one failure will take the whole system down.

Posted on Nov 25, 2013

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Posted on Jan 02, 2017

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SOURCE: rear diff

This sounds more like a transmission issue than the rear differential. It's possible that you have a damaged or mis-adjusted shift linkage or possibly a bad shift solenoid. Transmission fluid might be low, but I'm guessing you already checked the fluid with then engine warmed up and running. When it does run, does it vibrate? This could be an indicator that you have a bad seal in your torque converter and are losing fluid from it.

Posted on Feb 11, 2009

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SOURCE: 2005 chevy impala gas gauge up and down?

could be you have a broke fuel sending unit or its loose.

Posted on Aug 30, 2009

  • 400 Answers

SOURCE: does a 3.8 supercharged v6 fit into the base model impala?

Yhea it would bolt right in, they sold them from the factory like that. There would be lots of differances though. In the long run it would be cheaper to find a doner car at a wrecking yard, so you can get the wiring harness, pcm, all of the brackets, and verious other things. If you could find a wreck car for sale localy take all of the stuff you will need then you could part out the rest and make some of your money back!

Posted on Oct 20, 2009

  • 641 Answers

SOURCE: i have a 3800 supercharged chevy engine whats the fuel psi it should be running?

80 to 90 psi it's awfully high 45 to 50 perhaps a bit more (55) is more like it.

Posted on Mar 10, 2012

  • 2 Answers

SOURCE: 2004 Impala SS 3.8 Supercharged.Running rough.

There is a Recall on some models Catalytic Converter. 03 for sure, and it was covered under warranty up to 80,000 miles. Check with Dealer for replacement ($1500.00 was the ridiculous warranty bill) .If your car is over 80,000 miles then i suggest going to a smaller local garage and having the work done. shop around first, shop online Google the part and should get the cheapest listings with Free shipping. possibly $200-$400 plus installation labor at a good mechanics shop. Always shop for the best mechanic, that warranties his work. Muffler shops will generally be higher, but fast service.

Posted on Nov 29, 2012

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1 Answer

Ford 6.4 diesel the boost gauge goes all way up when lightly accelerating but I'm not get power of 40 psi my power feels low/weak. On highway if I press pedal for 1-2. Seconds turbo boost is maxed!!!!


check for leaking boost hoses, cracked inlet tube, cracked intercooler
run the fault codes ( if applicable) could be a sensor that is not communicating the boost setting to the ecm to increase fuel to the injectors

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Can I install a motor from a 2002 Impala in a 2004 Chevy SS?


You can, but you will need to bring a lot of the donor car components with and also bypass the security system if you intend on ever starting it.

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I have an 2005 Chevy impala SS and I would like to know where my ABS fuse is so I can remove it. My engine is a 3800 supercharged.


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This is labeled "Junction Block - Left IP Application Top View - Outside Devices "
I don't know exactly where it's at. I think it is referring to the left side of the instrument panel, underneath. Look at "8N M" for the ABS. The SRS (Supplemental Restraint System) is at "10J H". This is listed in "Body - Component Locator - Electrical Center Identification Views."
Hope this helps.

Feb 02, 2015 | 2005 Chevrolet Impala SS

1 Answer

Is it ok for my boost gauge to run a 3 to5 goin down the highway 05 impala ss


boost pressure is related to exhaust temperature . so if you are not under load then the accelerator position will only allow the fuel that is required and so the boost will be reacting accordingly. If you suddenly accelerate and the boost goes up then the turbo is doing the job. If it stays the same then look for boost leaks in hoses and air cooler. waste gate settings or faulty turbo.

Dec 24, 2014 | 2005 Chevrolet Impala SS

1 Answer

Is it ok for my boost gauge to run a 3 to5 goin down the highway 05 impala ss


Boost will change with rpm. Depending on what transmission you have, rpm may be pretty low at 70, thus low boost.

Dec 24, 2014 | 2005 Chevrolet Impala SS

1 Answer

2004 Impala SS 3.8 Supercharged.Running rough.


There is a Recall on some models Catalytic Converter. 03 for sure, and it was covered under warranty up to 80,000 miles. Check with Dealer for replacement ($1500.00 was the ridiculous warranty bill) .If your car is over 80,000 miles then i suggest going to a smaller local garage and having the work done. shop around first, shop online Google the part and should get the cheapest listings with Free shipping. possibly $200-$400 plus installation labor at a good mechanics shop. Always shop for the best mechanic, that warranties his work. Muffler shops will generally be higher, but fast service.

Nov 27, 2012 | 2004 Chevrolet Impala

1 Answer

I have a 3800 supercharged chevy engine whats the fuel psi it should be running?


80 to 90 psi it's awfully high 45 to 50 perhaps a bit more (55) is more like it.

Mar 10, 2012 | Cars & Trucks

1 Answer

The oil pressure gauge goes from 0 to all the way up and the needle moves back and forth while driving it checked oil its good now its clicking underneath the car and it felt like the transmission was...


First we would need to know when this occurs. Asuming the oil level is at the full mark!. If the pressure goes up during acceleration and down at idle when engine is fully warmed up, then this is normal. An engine requires 10 psi of oil pressure per 1,000 rpm ( ex. 20 psi at 2,000 rpm, 25 psi at 2,500 rpm, and so on ) . If the gauge is moving back and forth erratically at idle , i would say the gauge is bad. If it drops to 0 while accelerating I would say your oil pump is bad. If from time to time it seems to work and other times it seems not to work, I would say the oil pressure sending unit for the gauge is bad. If the pump failed you would start to here a Knocking noise from the engine in a short period of time. Use the above scenario's to narrow down what it may be.

Mar 27, 2010 | 2005 Nissan Altima

1 Answer

Does a 3.8 supercharged v6 fit into the base model impala?


Yhea it would bolt right in, they sold them from the factory like that. There would be lots of differances though. In the long run it would be cheaper to find a doner car at a wrecking yard, so you can get the wiring harness, pcm, all of the brackets, and verious other things. If you could find a wreck car for sale localy take all of the stuff you will need then you could part out the rest and make some of your money back!

Oct 20, 2009 | 1999 Chevrolet Lumina

1 Answer

2005 chevy impala gas gauge up and down?


could be you have a broke fuel sending unit or its loose.

Aug 30, 2009 | 2005 Chevrolet Impala

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