100% Free

No Scanner Needed

Carly logo
Prices

christopherscholz3

Lacetti Transmission Oil Pressure Fault

My 2004 Chevrolet Lacetti with a gasoline engine has the engine warning light on. The error memory shows a transmission oil pressure sensor fault. The gearbox seems to be in emergency mode, slipping with unclean shifts, and occasional grinding during gear changes. The car has 131147 km. Could this be a faulty pressure switch or the transmission sensor?

Summary of the thread

A 2004 Chevrolet Lacetti exhibited transmission issues, including slipping, unclean shifts, and grinding, with an engine warning light indicating a transmission oil pressure sensor fault. The core problem was identified as a critically low gearbox oil level, which can cause such symptoms and trigger sensor faults. The solution involved checking and refilling the gearbox oil, replacing the faulty sensor, and conducting a diagnostic evaluation, which resolved the issue.

Did this summary help you solve your problem?

4 comment(s)

romyfuchs76

Those symptoms sound rough. It could be the pressure switch, but have you checked your gearbox oil level? Low oil can cause weird transmission issues, making it slip and throw codes. It's an easy check, and worth doing before replacing sensors.

christopherscholz3 (community.author)

Where would I find the dipstick or inspection port to check the gearbox oil level on this Lacetti? I'm not familiar with its configuration.

romyfuchs76

Some older models don't have a dipstick. You might have a fill plug on the side of the transmission. Get the car level and remove the plug; the oil level should be at the bottom of the hole. Honestly, with those symptoms, the mileage, and not being super familiar with it, I'd take it to a workshop. They can properly diagnose it and prevent further damage.

christopherscholz3 (community.author)

I consulted a workshop. The gearbox oil level was critically low, causing the symptoms and sensor fault. After an oil change, sensor replacement, and diagnostic evaluation, the issue is resolved. The repair cost 365€.

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

CHEVROLET

community_crosslink_rmh_model

LACETTI