Engine Performance problem
1997 Dodge Ram V8 Four Wheel Drive Automatic 318500 miles
When driving, my truck won't take gas it misses. It does this randomly and when climbing hills. I noticed the problem a few days after driving through extremely wet/muddy/clay/dirt roads.
Recently at the end of a 6 hour trip my truck wouldn't take gas, go over a certain speed, and the engine revved up on its own (rpm needle jumped) without the truck physically accelerating.
Had it tested - computer reported the speed sensor. I want to have it fixed but want the correct thing fixed. I've been told it was the transmission - got a second opinion and was told it was the fuel filter, possibly the pump.
2005 Transmission Filter Replaced @ 248,494 miles
2005 Replaced Alternator @ 252,606 miles
2005 Replaced Fuel Pump Assembly @ 245,687 miles
The problem is it could be either of the things you listed. Has the check engine light come on? Have you checked fuel pump pressure?
Let me know.
March, 26, 2010 AT 10:04 AM
The check engine light has been on for a while now and is why I had it initially tested - it reported the speed sensor and a vacuum hose. Since then I had the vacuum hose repaired. I did have it tested again yesterday - it reported the catalytic converter and the speed sensor.
I haven't checked the fuel pump pressure but will.
A while back I noticed a different smell in the exhaust and that I was burning more gas than before, but didn't put the two together.
Could it very well be that the catalytic converter is clogged and is causing it to miss and not take gas?
March, 26, 2010 AT 10:43 AM
It could and it will cause a loss of power. Just for the heck of it, drive the truck tonight when it is dark. Run it until it is up to operating temp and then drive it home. Don't shut the engine. Craw under the truck and see if the converter is red hot. If it is, then it's plugged.
Let me know what you find.
PS: Make sure the vehicle is in park with the park brake on so it doesn't move when you are under it.