I get a PO452 code read. Also engine does not start up on first key turn.

Asked by hywmn Oct 29, 2007 at 09:20 PM about the 2000 Chevrolet Blazer LS 4-Door 4WD

Question type: Maintenance & Repair

My Blazer would always start on first crank. Now weather it is hot or cold outside or engine temp hot or cold, it take at least two turns of the key to start up.

83,795

littlehorn answered 16 years ago

Evaporative Emission Control System Pressure Sensor Low Input indicates a low voltage problem in the Fuel Tank Pressure Sensor (FTPS). What the fuel FTP sensor does is convert fuel tank absolute pressure into electrical signals and inputs the signal to the ECM/PCM, (Computer). First thing to do is make sure the gas cap is good and tightened properly. Then check the vacuum lines and wiring at the FTPS (Location-Fuel Tank) to be sure they are good, clean and tight. Barring a wiring problem it can be a bad FTPS or PCM. Found this for you at WikiAnswers.com

3 people found this helpful.

Mark helpful

GuruT5D8X answered 5 years ago

la pompe a gaz ha ha ha lololo les blazer tous comme jimmy ils sont touse du sure les pompe a gaz leur des faux

Mark helpful

Your Answer:

I get a PO452 code read. Also engine does not start up on first key turn. 2 Answers

My Blazer would always start on first crank. Now weather it is hot or cold outside or engine temp hot or cold, it take at least two turns of the key to start up.

2000 Chevrolet Blazer LS 4-Door 4WD

-

Maintenance & Repair
engine will not turn when trying to start up. What can be the cause? 1 Answer

Poured gas into carburator and engine will not start.

1990 Chevrolet Blazer

-

Maintenance & Repair
I have a 1999 Chevy Blazer, 4x4, 4.3 vortec. We have changed the coil pack, fuel filter, distributor cap and button, the crank shaft sensor, cam sensor and plug wires as well as the ignition control module. We coming to a stop sign it will stall and sometimes when just sitting still. Sometimes it will start right back up and other times it takes several tries. I also have the oxygen sensor on order and it should be here tomorrow. Fuel pressure tested perfectly. No black smoke, no smell of rotten eggs or the cat glowing red. The only code that comes up is PO420. 4 Answers

I have a 1999 Chevy Blazer, 4x4, 4.3 vortec. We have changed the coil pack, fuel filter, distributor cap and button, the crank shaft sensor, cam sensor and plug wires as well as the ignition control m...

1999 Chevrolet Blazer 4-Door 4WD

-

Maintenance & Repair
1999 chevy blazer will not start i did a full tune up and change the fuel pump still will not start up all it does is crank i was told it could be the computer i got one put it in still will not start 1 Answer

I put one i had from a 1996 blazer and start up and runs but it runs like crap and my dash bored looks like a Christmas tree

1999 Chevrolet Blazer LS 4-Door 4WD

-

Maintenance & Repair
My 2002 Chevy Blazer is not starting, Sounds like it is fuel starved. Just filled the tank and got home fine next day it doesnt start. It turns over for a second and then wont stay on on. if i keep trying it sounds more like it isnt getting fuel. I am thinking since I let the tank get low to check m,y milage I may have picked up some gunk in the tank and cloged the line somewhere. Any suggestions on how to go about diagnosing and fixing this? 5 Answers

My 2002 Chevy Blazer is not starting, Sounds like it is fuel starved. Just filled the tank and got home fine next day it doesn't start. It turns over for a second and then wont stay on on. if i keep...

2002 Chevrolet Blazer LS 4-Door RWD

-

Maintenance & Repair

Own this car?

Share your experience with others.

2000 Chevrolet Blazer

Write a car review

Review another car

Used Chevrolet Silverado 1500

4,179 Great Deals out of 131,069 listings starting at $1,000

Used Chevrolet Tahoe

1,065 Great Deals out of 21,006 listings starting at $1,000

Used Jeep Grand Cherokee

2,589 Great Deals out of 50,688 listings starting at $500

Used Ford Explorer

2,179 Great Deals out of 63,184 listings starting at $825

Used Toyota RAV4

1,992 Great Deals out of 29,133 listings starting at $1,500

Used Toyota 4Runner

1,158 Great Deals out of 18,585 listings starting at $1,550

2024 Chevrolet Blazer For Sale

19 Great Deals out of 6,676 listings starting at $26,295

2023 Chevrolet Blazer For Sale

65 Great Deals out of 1,160 listings starting at $21,903

2022 Chevrolet Blazer For Sale

125 Great Deals out of 1,286 listings starting at $19,498

2021 Chevrolet Blazer For Sale

333 Great Deals out of 3,438 listings starting at $14,999

2020 Chevrolet Blazer For Sale

123 Great Deals out of 1,136 listings starting at $15,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.

I get a PO452 code read. Also engine does not start up on first key turn.

2 Answers

Your Answer:

Own this car?

Share your experience with others.

Shortcuts

Search Chevrolet Blazer Questions

CarGurus Experts

Know more, shop wisely

Related Models For Sale

Used Cars for Sale

I get a PO452 code read. Also engine does not start up on first key turn.

2 Answers

Your Answer:

Related Questions