What kind of intake manifold does a Pontiac use?
The Tri-Power manifold is quite likely Pontiac’s most popular. A regular production option during the 1950s and 1960s, it performed consistently and reliably on the street. The center 2-barrel is used for idling, low-speed acceleration, and lightthrottle cruising while the end carburetors open progressively as demand increases.
What are the symptoms of intake manifold problems?
1. Engine misfires and decrease in power, acceleration, and fuel economy. One of the most common symptoms of an issue with intake manifold gaskets is engine performance issues.
Can a bad intake manifold cause a coolant leak?
Coolant leaks. Another symptom of a faulty intake manifold gasket is coolant leaks. Some intake manifold gaskets also seal engine coolant, and if the gasket wears out it may lead to a coolant leak.
When did Pontiac stop using 4 barrel manifolds?
The new manifold proved to be so well suited for myriad applications that it became Pontiac’s only 4-barrel from 1968 forward, and the original design was discontinued. Over the years the casting saw the addition of an exhaust gas recirculation (EGR) system to quell certain emissions, and even physical deviations.
What does the P0300 code on a Pontiac mean?
The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are commonly caused by multi-cylinder misfiring.
What does a P0300 cylinder misfire code mean?
The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. If no leak are found the next step is to replace the spark plugs. If the problem persists more tests needs to be done to diagnose problem, see “Possible Causes”.
What kind of intake manifold does a Pontiac V-8 use?
The induction system of a Pontiac V-8 typically consists of a carburetor and intake manifold. Each is designed to maximize performance in a particular range. Larger race engines that operate at high speed require a significant volume of fuel and air, and that requires a unique intake manifold with multiple carburetors.
The new manifold proved to be so well suited for myriad applications that it became Pontiac’s only 4-barrel from 1968 forward, and the original design was discontinued. Over the years the casting saw the addition of an exhaust gas recirculation (EGR) system to quell certain emissions, and even physical deviations.
When did the 4 barrel intake manifold come out?
Its coolant passages and mounting points were revised for 1965, making it compatible with popular Pontiac cylinder heads commonly used today. Pontiac introduced a new 4-barrel manifold when multiple carburetion went away for 1967.
How much does a 1966 intake manifold cost?
The center 2-barrel carburetor is larger on the 1966 manifold, which increases its desirability and can improve performance, particularly with larger engines. Depending upon condition, a bare early-vintage manifold can bring $100 or more. A 1965 manifold generally cost a few hundred dollars while the 1966 units can bring several hundred.