1988 Chevrolet Caprice - Answered Questions & Fixed issues

Have you checked alternator output to see if it is getting from the alternator to the battery ? Could be a blown fuseable link or other wiring issue.

unhook old cable zep tie newcable to old one pull through firewall then hook up

Can you be a little more specific?

pump seal is bad, if you tap a bolt into it and thread seal it you may ger 20,000 more miles. the seal is bad the pump may be fine

check the gasket below the carburetor it likes to deteiorate and brake look for any signs of gas they are notorius for leaking and make a truck run like ****. if you cant find your fix maybe a simple tune up is in order?

go to autozone.com this should help with the schematics if not then go to a auto part store and buy a book the book should cost around 11.00$ and should fix your problem :)

The brake booster from most of the GM cars of the same size should fit. To change it you need to unbolt the master cylander from the booster be careful not to kink brake lines disconnect vacum hose from booster unbolt booster from fire wall. Now replace in reverse order. Always be careful of the brake lines.

It's either a t-20 torx screw or a 7/32" bolt head screw. Google image search "ford ignition module tool" you will see the two most common ones. The one that has the two different tools offset is my personal favorite. Either one will work and either will likely be available at any good auto parts store. I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

There are a few things to check there. First, make sure the choke is working. Next, adjust the small screw below the choke assembly on the end of the primary throttle shaft (right side). Also make sure that the choke pull off vacuum mechanism is working to partially open the top choke plate after the engine starts. Also make sure that all vacuum lines are connected and not cracked or broken.

you need to replace the breaks master disk or the master disk sealing ket

needs new fuel pressure regulator

Have your alternator checked and at the same time have the battery checked at your local Auto Zone or O'Reilly auto parts store. Or auto parts store similar to one of those. Sometimes when your battery goes dead it tends to wreak havoc on the alternator which can cause the battery to not hold its charge.

well you need to pull codes from the diagnose port to find out what the problem is..

check the crank position sensor and ignition switch also you may have a timing belt problem

carb cleaner in an aerosol can is just a bandaid - you'll need to tear it down and disassemble to clean properly.


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follow you nose and you will not go far wrong ,if their taper bearing then not a problem getting the paths out ,but if a big solid roller bearing then have it pressed out and in again in a workshop with a press

take out alot or screww and clips and alot of patients, cause you'll break it into pieces if you arent careful

Had a similar problem with my '85 Caprice Classic with the 305cc. Turned out to be a bad throttle body gasket on the carborator. It was "sucking" in too much air. Replaced it and haven't had any trouble now for months.

I would stick with the 700r4 and have it gone thru and maybe have a shift kit installed. You may have to change out some things putting in a 400.

Check the leads on the pickup coil under the plate in the distributor. If one breaks the distributor needs to come out, lower gear needs to come off and shaft removed to get to it (not really that hard).
If the leads are good then the module mounted on the plate needs to be changed. (there is no valid test for that part except to replace)