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2003 olds alero 4 cly rpms drop while driving down road

Rpms drop while driving and getting poor gas milage

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If the MIL (malfunction indicator lamp, check engine light) is on,,, stop in autozone or advance auto, and they will check that for free1
if your not sure what to do with the information they give you, stop back here and post the codes along with your question I'll be happy to help you!

Posted on Apr 02, 2015

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Get the error codes read at your favorite auto parts store.
I will guess you have a fuel system delivery problem, which
is affected by a number of devices.

Posted on Apr 02, 2015

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Poor gas milage?


Thinking you are getting poor gas milage,Your engine is running smooth,no misses,Engine runs smooth while accelerating up a hill, Still poor gas milage, Check your tire pressure. I have a 1999 Chevy Blazer 4x4, 4.3 Ltr. Auto, loaded. I have just over 154000 miles on it,I change my fluids every 5000 miles. Summer driving milage got real bad. I drive a Blazer hard. I tow a 16ft trailor usally loaded to the top with wood. Tires get hot in the summer, while in the winter, they stay mostly cool. Always check your air pressure.Most vehicals are equipted with radials now days, So if you think a tire looks low, check it, Usally they low. Usally in the winter months, nobody checks tire pressure. It really does make a difference. I went from 17.2 MPG to 19.5 MPG, while pulling the same trailor loaded with wood. I cut my own wood then stack it in my trailor to sell. I have Good Year Wranglers size: P235/75R/15 I just replace these with new ones. The old ones are going on my trailor. Counted milage on tires are 65000 Miles. Tires were rated at 40000 miles, Under normal use.

on Jan 01, 2010 | Chevrolet Blazer Cars & Trucks

1 Answer

Have a 2000 Olds Alero, i will be driving down the road the car will be fine it will start jerking rpms go up and down it will shut down i pull over sit for 10-20 minutes starts up drives fine until it...


don't spend money guessing
have the fault codes read first then fix what is indicated
could be an EVAP problem not venting the tank
could be a camshaft position sensor
could e a failed cat converter locking the exhaust

Nov 17, 2017 | 2000 Oldsmobile Alero

1 Answer

2003 olds alero 2.2 will not start


Try banging on your gas tank if it starts then you can almost be positive it's a fuel pump

Jul 17, 2012 | 2003 Oldsmobile Alero

1 Answer

I have a 2003 olds alero w/ 3.4l v6. lately the car has issues starting, usually taking three to four key turns to get it going and sometimes i have to hold the peddla down to get it to start and have to...


yes you have a clogged fuel filter and need replace it holding down gas peddle forces debris to bottom of filter and then floats back to top side fuel filter very simpe cheap fix around 25 bucks hour of time

Sep 13, 2010 | 2003 Oldsmobile Alero

1 Answer

Poor gas milage


Gas milage will vary, depending on the manner in which you drive, also poor gas milage could be due to poor maintenance. Replace the PCV valve, the oxygen sensors, the fuel filter, plugs and wires, and have the injectors cleaned, switch to synthetic oil should improve the milage. .

Jun 29, 2009 | 1991 Toyota Pickup

1 Answer

Poor milage


roughly between 270- 330miles out of a tank of gas think its like 17.5 gal

Mar 31, 2009 | 2003 Oldsmobile Alero

3 Answers

'03 Alero engine ust died while driving down the road. Help?


  • see if you can hear the fuel pump click over when you turn it to start position! this may be a fuel pump?

Mar 27, 2009 | 2003 Oldsmobile Alero

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