100% Free

No Scanner Needed

Carly logo
Prices

hannahshadow30

Colorado intermittent starting issue

My 2004 Chevrolet Colorado with a gasoline engine sometimes refuses to start, stalls at idle, and the check engine light is on. It's running rough, fuel consumption is up and the error memory is full. It’s only done 33091 km. Could it be the fuel pump?

Summary of the thread

A 2004 Chevrolet Colorado is experiencing intermittent starting issues, stalling at idle, increased fuel consumption, and a check engine light, suggesting a potential fuel pump problem. However, it was advised to first check the cable and plug connections to the fuel pump, as faulty connections can mimic fuel pump failure. Upon inspection by a mechanic, a defective cable/plug connection was identified and repaired, resolving the issue at a lower cost than replacing the fuel pump.

Did this summary help you solve your problem?

4 comment(s)

jannikwolf1

Your symptoms sound awfully familiar. I had a similar experience with my old Volvo V70 – the engine would cut out unexpectedly, much like a bad fuel pump. Before jumping to conclusions, have you checked the cable and plug connections to the fuel pump? A faulty connection can cause all sorts of havoc and is much cheaper to fix than replacing the whole unit. Is there power getting to the pump?

hannahshadow30 (community.author)

I did wiggle some wires, but I didn't check the power. How would I go about checking that specifically? Is it something I can do with basic tools, or do I need specialized equipment?

jannikwolf1

Testing for power requires a multimeter, which you can pick up relatively cheaply. However, if you're not comfortable working with electrical systems, it might be best to take it to a workshop. A misdiagnosis could lead to unnecessary repairs. When I had this problem with my Volvo, it turned out that I had a corroded wire and I had it repaired in a workshop.

hannahshadow30 (community.author)

I took your advice and had a mechanic check the wiring, and you were spot on! Turns out it was a defective cable/plug connection to the fuel pump. Total cost for the repair was 95€ – much better than a new fuel pump! I learned a lot from this experience.

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

COLORADO