7 votes

Solstice! Car starts to run rough after hitting the gas, intermittently.

Regarding the tangent, yes, an ill-fitting dipstick can be the cause of a vacuum leak. Pulling out the dipstick is a way mechanics can figure out if the car is suffering from unmetered air/vacuum ...
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6 votes
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THAT Solstice - What causes an exhaust back-fire?

The most common cause of backfiring in MAF driven cars is an air leak in the intake system. This causes the engine to misread how much air is entering the engine, and too much or too little fuel is ...
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  • 4,081
6 votes
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Shop replaced engine, blew about six weeks later

Having spent a few years in a shop I completely understand LKQ not honoring a warranty for this engine. In their warranty document it's pretty clear that almost nothing is covered. The way the ...
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  • 32.7k
5 votes
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06 Solstice LE5 DTCs

Oh wow, there's definitely something funky going on with the electrical system. With regards to the P0563 and P0621, have you tried getting a live reading of the voltage from your scan tool or a ...
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  • 1,965
3 votes
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Removing head while maintaining timing chain tension & position

I would use wire (welding rod is a good candidate) or small springs to "hook" the chain either side - obviously the top part stays loose but the bottom part around the lower sprocket stays firmly in ...
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3 votes

Intermittent CEL, several codes

P0171 - System Too Lean (Bank 1) (Immature) P0507 - Idle Air Control System RPM Higher Than Expected (History) (Immature) Potential vacuum leak: I can hear a steady hissing sound near the intake ...
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3 votes

New engine and clutch, have weird vibration @3K RPM

Since the issue happens only when the clutch is engaged the problem is not with the engine, flywheel, or pressure plate. Since it isn't speed dependent, but RPM dependent, we can eliminate the drive ...
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3 votes
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2006 Pontiac Solstice - Wipers turn on by themselves

I'm pretty sure the electronics on your wiper motor has gone bad (or is going bad). The switch in the cockpit is there to instruct the wiper electronics what your intention is. When you turn the wiper ...
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3 votes

06 Solstice (Yay) Fuel smell after hard acceleration

Depending on the design of the turbo kit and installation, it could be due to the turbo blow off valve, if it is vented externally and not back into the intake upstream, you could smell gas briefly ...
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3 votes
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Solstice! Car starts to run rough after hitting the gas, intermittently.

So, here's the difference between the Solstice and Malibu dipsticks (both 2.4L LE5) The shorter one with the larger diameter, bright yellow handle is from the Solstice. Fortunately it was still in ...
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  • 3,134
3 votes
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New AC compressor - steps before turning it on?

Unless otherwise indicated with information included with the new compressor, add 4-6 ounces of the recommended oil into the suction side port of the compressor, rotate the compressor by hand in the ...
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  • 7,940
2 votes
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Non-blown blown head gasket

To answer the question - moot at this point for you I'm sure, but this is a Question and Answer site after all - What looks and acts like a blown head gasket, resulting in coolant in the cylinder, ...
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2 votes
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2006 Solstice - CEL, no DTC, won't crank

I would suggest it's actually the battery which is at fault. A good battery should register about 13.1-13.5vdc when fully charged. When down to the low 12vdc region (and dropping into 11vdc area ...
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2 votes
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2006 Solstice - car won't turn over following engine replacement

Well: When I reinstalled the engine harness and connected it back to the engine bay fuse block, I didn't properly tighten the five bolts that secure the connectors to the fuse panel. Apparently it ...
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  • 3,134
2 votes
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06 Solstice - weird hesitation / bogging under heavy throttle

Solved! Having cleaned the MAF, checked the O2 sensors, hunted all over for a vacuum leak (here's a hint - don't spray carb cleaner near a disconnected vacuum hose that's actually carrying positive ...
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  • 3,134
2 votes
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ECM voltage, spark spike

To get this off the unanswered question list: There was an intermittent break in the wiring harness near the MAP sensor. I removed the damaged section and lineman-spliced it, and this particular ...
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  • 3,134
2 votes

ECM voltage, spark spike

That is a lot of spark advance. It looks like its sitting at 5-7ish degrees, then pulls up to almost 30 suddenly. Thats way higher than any normal adjustment I've seen. I added my own line onto ...
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  • 1,646
1 vote
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Cleaned throttle body, MAP sensor suddenly dead

The problem was the harness. On this car, there is a short "injector harness" which drives the injectors and the MAP, and is separable from the main engine harness. A solder joint near the MAP sensor ...
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  • 3,134
1 vote

ECM voltage, spark spike

Doesn't this car have two MAP sensors? See this discussion forum for more information. Seems like one of them involves temperature, so you may have replace them as a pair.
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  • 1,509
1 vote

06 Solstice - weird hesitation / bogging under heavy throttle

A lot of the symptoms sound like an air leak, which would fit with the p0455 error code. I would try to block off the evap connection to the air intake to see if that helps. Why do I think this? ...
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  • 20.1k
1 vote

Solstice - Can an exhaust leak cause (really bad) hesitation?

So, that's not what is generally meant by a "boost leak" – a boost leak is on the compressor side of the turbocharger, compressed air that should be going into the engine is leaking out before it gets ...
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  • 14.2k
1 vote

2006 Pontiac Solstice - Wipers turn on by themselves

When the wipers turn on do they always turn on at the same rate? try changing the intermittent speed level if so equipped.
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