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Matt
Matt, Mechanical Engineer
Category: Toyota
Satisfied Customers: 21620
Experience:  BEng hons Mech engineering, in auto industry 22 years
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I got toyota estima 1996 diesel problem is noise and no

Resolved Question:

hi i got toyota estima 1996 diesel problem is noise and no much power,we changed turbo twice still same problem,mechnic can`t find a problem
Submitted: 1 year ago.
Category: Toyota
Expert:  Matt replied 1 year ago.
hello I'd check the state of exhaust for any leaks, especially on the manifold to head joint as a cracked manifold will lose power and create noise if this is OK then doing a compression test across all cylinders as they should all be within 10-15 psi of each other Also check the connections to the EGR valve, if either the vacuum pipe of electrical connection are damaged / corroded then the EGR can be on all time which certainly will hurt performance. Its also possible that its a fault with the EGR valve so its worth removing the valve and cleaning it out with brake cleaner, if it looks particularly clogged then replace it. Also check all the high pressure hoses post turbo/s for any split hoses or cracked metal pipes, also check the ends of the intercooler as its not unheard of to pop the end caps off under high boost.
Expert:  Matt replied 1 year ago.
Hi
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