![]() ![]() The VCT system on your vehicle can change cam timing by about 30 degrees. So how can you have a problem with a VTC system just changing a timing belt? Its easy! How do you solve that problem? Thats where the challenge lays. VTC systems are becoming commonplace on many vehicles. Being able to vary the timing of the camshaft allows the engineers to maximize the performance of the engine at different RPMs and engine load. This system is called Variable Camshaft Timing (VTC). The exhaust camshaft on your engine is computer controlled. To make this happen it takes technology and it is that technology that has bitten you in the back-end. Todays engines are smaller, run remarkably clean and make horse power that was only a dream 20 years ago. Ill bet a second cup of coffee that you rotated the engine backwards to get the timing marks lined up before you took the timing belt off. Any ideas on whats going wrong?Ī: I am willing to bet coffee that the exhaust camshafts gear on your engine looked really different. I checked the compression and it has about 150 PSI in each cylinder. The engine starts good and then runs rough after a few seconds. I changed the timing belt and I cannot get the exhaust camshaft to set correctly. Q: I own a ∙8 Ford Contour SE with a 2.0-liter engine. These Tech Tips were answers to questions submitted to Jim by A collection of helpful articles based on reader submissionsīelow is a collection of Jim Grant's Tech Tips sorted by Vehicle ![]()
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