I just drove my car back on a 250 mile road trip. the car did great. I parked it and drove it earlier this week.
Friday night I was going to drive it to Denver and as I hit the first uphill the car felt low on power. I went full throttle and it seemed to be struggling getting up to 60 mpg up the hill, usually no a problem.
So this problem started out of nowhere. The car idles great and doesn't seem to have an issue until you are moving about about 20 mph when it is noticably slower. I noticed there was a bit of a hissing noise that i haven't heard before so I thought maybe there was a vacuum leak.
Here is what i checked:
-oil still clean, no milkshake texture at all
- spark plugs look good, they have a few thousand miles on them but are like a light brown color, no issue there
- I removed vacuum lines and one line to the ICv had a small crack. I wrapped electrical tape around as a temporary fix to see if that was issue
I drove it around again and it was still low on power.
- Stomp test, code 1221- 02 sensor. The sensor looks ok, but shouldn't cause this big of an issue, should it?
- remove intake manifold to check other vacuum lines. I don't see any issues with the lines, fpr line was replaced last year.
What could cause this out of the blue? Here are a few ideas I had, any input?
- fuel filter (I haven't replaced it)
- Fuel Pump (never had one fail before, but it buzzes when i turn on the key)
- FPR - could this cause this issue?
- Coolant temp sensor - I can't find this, i guess is under the lower intake manifold
- oxygen sensor - I couldn't think this would have that big effect on the engine performance
- spark/ ignition?
maybe I will put it back together to see if I can get better symptoms
Friday night I was going to drive it to Denver and as I hit the first uphill the car felt low on power. I went full throttle and it seemed to be struggling getting up to 60 mpg up the hill, usually no a problem.
So this problem started out of nowhere. The car idles great and doesn't seem to have an issue until you are moving about about 20 mph when it is noticably slower. I noticed there was a bit of a hissing noise that i haven't heard before so I thought maybe there was a vacuum leak.
Here is what i checked:
-oil still clean, no milkshake texture at all
- spark plugs look good, they have a few thousand miles on them but are like a light brown color, no issue there
- I removed vacuum lines and one line to the ICv had a small crack. I wrapped electrical tape around as a temporary fix to see if that was issue
I drove it around again and it was still low on power.
- Stomp test, code 1221- 02 sensor. The sensor looks ok, but shouldn't cause this big of an issue, should it?
- remove intake manifold to check other vacuum lines. I don't see any issues with the lines, fpr line was replaced last year.
What could cause this out of the blue? Here are a few ideas I had, any input?
- fuel filter (I haven't replaced it)
- Fuel Pump (never had one fail before, but it buzzes when i turn on the key)
- FPR - could this cause this issue?
- Coolant temp sensor - I can't find this, i guess is under the lower intake manifold
- oxygen sensor - I couldn't think this would have that big effect on the engine performance
- spark/ ignition?
maybe I will put it back together to see if I can get better symptoms
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