Question about Dodge Pickup

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Driving today and was making a left to enter onto the highway. I head my audible alarm to check gauges and then notice my oil guage dropped low and then went back up after a I eased off the gas. I was about t pull over and then it went down again and then went back up. Eveytime it went down the audible alarm would sound. I notice once I was leave my foot off the gas is would then rise back up and then at about 20 seconds go down again. I drove all the way home as I did not hear any rattles , clunking. etc. I let it set for about an hour and started the truck. It took about 7 seconds for the guage to get to actual pressure. I then drove about 4 minles and it started dropping in pressure again. Not sre if it is the oil pump or a shortage somewhere. 2002 dodge ram. 4.7 l

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Did you check the engine oil level? A fluctuation in oil pressure is most often caused by low oil levels in the engine. First, make sure the oil is filled to the correct level on the dipstick. I shouldn't have to say this but just to make sure I'm clear about this...please remove the dipstick and wipe it clean before re-inserting it into the engine to check the oil. If oil level is already correct, then it is safe to assume your problem is electrical and you should then inspect the connection at the oil pressure switch. It's usually mounted on one of the cylinder heads. You will need a repair manual from any auto parts store to go any further on this because troubleshooting an electrical problem requires specific info on where to find certain components and how to physically test them. I simply can't list every possible cause of the problem in this post. Just remember, the problem is either mechanical, meaning you are low on oil, or the problem is electrical, meaining the gage is wrong. If the gage is wrong you need to be able to determine why. That means you will have to determine which components make the gage operate. Locate each of them and inspect for loose, damaged, or corroded wires or connectors. Then test each component. Testing will require specific info so you will need a manual in that case. Try checking the oil first, then, if need be, get a good repair manual and go from there.

Posted on Jul 03, 2010

  • undrae knox Jul 03, 2010

    Thanks. Yes the Oil level is fine. I will check the electrical and may just take to mechanic. Thanks alot.

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