![]() ![]() ![]() Brake fluid falls low and air gets into the system, causing low or soft brake pedal.Symptoms of ABS Brake Problems on the 88-02 GMT 400 Truck Brake fluid travels though the master cylinder, through the ABS control module and pump, and out to the wheels. The ABS control module and pump on the 88-02 GMT 400 is located near the windshield wiper fluid reservoir. The ignition module can be replaced separately but the distributor tends to be inexpensive and it might be better to just replace the distributorĪBS control module located near windshield wiper fluid reservoir If the problem is a lack of spark, inspect the parts of the distributor, and if there is no spark at the coil, there is likely a problem with the distributor or the ignition module. If the engine doesn’t start, check if it has spark or fuel.Keep up maintenance with the distributor cap, rotor, plug and wire replacements.How to Fix Distributor Problems in the GMT 400 If the acceleration feels sluggish, it could be from a clogged fuel filter.Sometimes the ignition control module fails and gives no spark or an intermittent spark.Sometimes the distributor wheel will crack or the distributor wheel wears out.The spark then travels to the spark plugs for combustion. The coil sends the spark to the top of the distributor cap, through the rotor which will spin and send a spark to each wire. There is only one coil since 88-02 Chevy trucks do not have a coil-over-plug. The wheel under the distributor cap sends a signal to the module, which sends a signal to the ignition coil. Lack of acceleration or engine feels sluggish.This problem outlined is for C/Ks with the Chevy 350 or 5.7L V8 engine and will be a little different for the V6 and does not apply to diesels. ![]() The distributor on 88-02 GMC and Chevrolet C1500, K1500, C2500, etc. ![]()
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