Having problems with your 2003 Ford ZX2 ?
Hesitation when the gas is pushed slightly thr engine bogs, same problem letting off the gas. i notice a vecume leak sound by the back of the engine when the gas is pushed from idle also.
The vacuum leak is the key to your problem, use a can of carb spray and find out where it is. Anytime air leaks into the engine that does not get metered by the MAF sensor then a lean condition will be caused, this makes the engine hesitate.
Repair Help & Product Troubleshooting for 2003 Ford ZX2
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.