More About Points »
Fort Myers, FL
Is it still under the 3/36,000 bumper to bumper warranty?
The 2008 2.4 engine uses a timing belt. Yes have it replaced. This really is not something you can do. I'm sorry I'm assuming that. If you think you can contact me at firstname.lastname@example.org and I can help you.
It has throttle body fuel injection which the fuel mixture is controlled by a computer. If I were to start shooting parts at this Blazer I would put a new O2 sensor in it. If you don't want to guess, find somebody with a OBD I scanner software to look at the serial data. unfortunately that also means a PAT(PROFESSIONAL AUTO TECH) that can understand what the data means.
Got to love HUSBANDS!
Go to www.alldatadiy.com and spend the $26.95 to get any factory info.
Just guessing, neutral safety switch.
It has know timing chain. There's 4 different 1.7 4 cylinder engines for that sub model. What is the problem with the car? If you really want help, contact me at email@example.com.
No, you need to put a fuel pressure gage on the vehicle. What's the fuel pressure and volume test readings. You have spent a s*#t load of money guessing start testing.
I'm confused, is it a 1990 or a 1973? If it is a 1973, have you checked the dwell and timing? For you guys that don't know what dwell is on a 1973 Riviera, it means taking a dwell meter or a good DVOM and look at the percentage of time the POINTS are open. Yes I said points. Here's some more info. At ordinary engine operating speeds, the points open and close a couple of hundred times per second, the exact number depending on the number of cylinders and the engine RPM. The points need to be closed for a appreciable time in order to build up the maximum magnetic flux in the ignition coil core. The period of points closure is specified by the ignition system designer and is typically expressed as degrees of distributor rotation. In a four cylinder engine, the angle between each ignition cam lobe is 90° and the period of points closure or "DWELL" is usually a bit over 45° of distributor rotation. In a six cylinder engine, the lobes are 60° apart and the dwell time is 30° to 35°. The dwell is adjusted by setting the points gap to a specified distance at maximum opening. A narrower gap gives more dwell and a wider gap gives less. Taking it to extremes, excessive dwell means that the points close too soon after opening, cutting off the magnetic field collapse before it delivers all its energy. Too little dwell gives the magnetic flux insufficient time to build up to the maximum. Both conditions give a weak spark which gets even weaker as the engine RPM rises and produces misfiring at normal operating speeds. The dwell, as well as spark plug gap, do have an effect on ignition timing. The later the points open, the later the spark comes and retards the timing. The earlier the points open the sooner the spark comes and advances the timing. That is why timing is the last thing to be set in a tune-up. The way I set the dwell is this; remove the distributor cap and rotor, ground the coil wire and remove all the spark plugs from the engine. Set up your dwell meter and hook up a remote starter. Turn the key ON and crank the engine. Adjust the points to the desired setting and tighten the points. Crank it again to be sure the dwell angle is still correct. With GM points it's a lot easier. They have an adjuster built into the points and a little door in the distributor cap. This allows you to adjust the points while the engine is actually running. This is an education for those younger techs.
What software are you looking for?