Joined
·
4 Posts
Hello S10 Community. I'm new here, and have perused many, many forums and threads, looking for an answer to my question, but didn't find any. So, here goes...
I have a 1992 Chevy S10 Blazer with the 4.3 V6 . When I first start it up from a cold start, it high-idles for about 1 minute until it warms up a bit, then it idles normal. When I start driving it, it runs beautifully, full power...until I hit a bump in the road, like pavement buckled up before a bridge; or a small pothole in the road, etc. When I hit a bump, the truck just loses power, almost as if you would be turning off a fuel switch, cutting all fuel to the engine. It only lasts for maybe 2 seconds or so, and then kicks back in, running normal again. As long as the road is smooth, like on a highway, the vehicle runs like a champ, with no issues noted at all. Does anybody have any ideas what could be causing this to occur? No error codes pop up, no dash lights come on, headlights stay on, etc. I have checked everything I can think of or have the mechanical capability of checking, such as loose wires to the battery, alternator, distributor cap / plug wires, fuse box, etc. I initially thought this perhaps was an electrical issue, but since the headlights / dome light stays on, I'm leaning more towards a mechanical issue now, perhaps? I thought maybe it was perhaps a fuel pump issue? I hear the fuel pump turn on when I first turn the key on, so it definitely is pumping fuel to the motor, since it starts right up within 3 seconds of turning the key. I'm at a loss - any ideas? I greatly appreciate any help anyone can offer. ~ Steve
I have a 1992 Chevy S10 Blazer with the 4.3 V6 . When I first start it up from a cold start, it high-idles for about 1 minute until it warms up a bit, then it idles normal. When I start driving it, it runs beautifully, full power...until I hit a bump in the road, like pavement buckled up before a bridge; or a small pothole in the road, etc. When I hit a bump, the truck just loses power, almost as if you would be turning off a fuel switch, cutting all fuel to the engine. It only lasts for maybe 2 seconds or so, and then kicks back in, running normal again. As long as the road is smooth, like on a highway, the vehicle runs like a champ, with no issues noted at all. Does anybody have any ideas what could be causing this to occur? No error codes pop up, no dash lights come on, headlights stay on, etc. I have checked everything I can think of or have the mechanical capability of checking, such as loose wires to the battery, alternator, distributor cap / plug wires, fuse box, etc. I initially thought this perhaps was an electrical issue, but since the headlights / dome light stays on, I'm leaning more towards a mechanical issue now, perhaps? I thought maybe it was perhaps a fuel pump issue? I hear the fuel pump turn on when I first turn the key on, so it definitely is pumping fuel to the motor, since it starts right up within 3 seconds of turning the key. I'm at a loss - any ideas? I greatly appreciate any help anyone can offer. ~ Steve
